Update Go AWS SDK to the latest version

vendor/github.com/aws/aws-sdk-go/models/apis/elasticache/2015-02-02/api-2.json

@@ -5,6 +5,7 @@
     "endpointPrefix":"elasticache",
     "protocol":"query",
     "serviceFullName":"Amazon ElastiCache",
+    "serviceId":"ElastiCache",
     "signatureVersion":"v4",
     "uid":"elasticache-2015-02-02",
     "xmlNamespace":"http://elasticache.amazonaws.com/doc/2015-02-02/"
@@ -47,6 +48,38 @@
         {"shape":"InvalidParameterCombinationException"}
       ]
     },
+    "BatchApplyUpdateAction":{
+      "name":"BatchApplyUpdateAction",
+      "http":{
+        "method":"POST",
+        "requestUri":"/"
+      },
+      "input":{"shape":"BatchApplyUpdateActionMessage"},
+      "output":{
+        "shape":"UpdateActionResultsMessage",
+        "resultWrapper":"BatchApplyUpdateActionResult"
+      },
+      "errors":[
+        {"shape":"ServiceUpdateNotFoundFault"},
+        {"shape":"InvalidParameterValueException"}
+      ]
+    },
+    "BatchStopUpdateAction":{
+      "name":"BatchStopUpdateAction",
+      "http":{
+        "method":"POST",
+        "requestUri":"/"
+      },
+      "input":{"shape":"BatchStopUpdateActionMessage"},
+      "output":{
+        "shape":"UpdateActionResultsMessage",
+        "resultWrapper":"BatchStopUpdateActionResult"
+      },
+      "errors":[
+        {"shape":"ServiceUpdateNotFoundFault"},
+        {"shape":"InvalidParameterValueException"}
+      ]
+    },
     "CopySnapshot":{
       "name":"CopySnapshot",
       "http":{
@@ -202,6 +235,32 @@
         {"shape":"InvalidParameterValueException"}
       ]
     },
+    "DecreaseReplicaCount":{
+      "name":"DecreaseReplicaCount",
+      "http":{
+        "method":"POST",
+        "requestUri":"/"
+      },
+      "input":{"shape":"DecreaseReplicaCountMessage"},
+      "output":{
+        "shape":"DecreaseReplicaCountResult",
+        "resultWrapper":"DecreaseReplicaCountResult"
+      },
+      "errors":[
+        {"shape":"ReplicationGroupNotFoundFault"},
+        {"shape":"InvalidReplicationGroupStateFault"},
+        {"shape":"InvalidCacheClusterStateFault"},
+        {"shape":"InvalidVPCNetworkStateFault"},
+        {"shape":"InsufficientCacheClusterCapacityFault"},
+        {"shape":"ClusterQuotaForCustomerExceededFault"},
+        {"shape":"NodeGroupsPerReplicationGroupQuotaExceededFault"},
+        {"shape":"NodeQuotaForCustomerExceededFault"},
+        {"shape":"ServiceLinkedRoleNotFoundFault"},
+        {"shape":"NoOperationFault"},
+        {"shape":"InvalidParameterValueException"},
+        {"shape":"InvalidParameterCombinationException"}
+      ]
+    },
     "DeleteCacheCluster":{
       "name":"DeleteCacheCluster",
       "http":{
@@ -480,6 +539,23 @@
         {"shape":"InvalidParameterCombinationException"}
       ]
     },
+    "DescribeServiceUpdates":{
+      "name":"DescribeServiceUpdates",
+      "http":{
+        "method":"POST",
+        "requestUri":"/"
+      },
+      "input":{"shape":"DescribeServiceUpdatesMessage"},
+      "output":{
+        "shape":"ServiceUpdatesMessage",
+        "resultWrapper":"DescribeServiceUpdatesResult"
+      },
+      "errors":[
+        {"shape":"ServiceUpdateNotFoundFault"},
+        {"shape":"InvalidParameterValueException"},
+        {"shape":"InvalidParameterCombinationException"}
+      ]
+    },
     "DescribeSnapshots":{
       "name":"DescribeSnapshots",
       "http":{
@@ -498,6 +574,47 @@
         {"shape":"InvalidParameterCombinationException"}
       ]
     },
+    "DescribeUpdateActions":{
+      "name":"DescribeUpdateActions",
+      "http":{
+        "method":"POST",
+        "requestUri":"/"
+      },
+      "input":{"shape":"DescribeUpdateActionsMessage"},
+      "output":{
+        "shape":"UpdateActionsMessage",
+        "resultWrapper":"DescribeUpdateActionsResult"
+      },
+      "errors":[
+        {"shape":"InvalidParameterValueException"},
+        {"shape":"InvalidParameterCombinationException"}
+      ]
+    },
+    "IncreaseReplicaCount":{
+      "name":"IncreaseReplicaCount",
+      "http":{
+        "method":"POST",
+        "requestUri":"/"
+      },
+      "input":{"shape":"IncreaseReplicaCountMessage"},
+      "output":{
+        "shape":"IncreaseReplicaCountResult",
+        "resultWrapper":"IncreaseReplicaCountResult"
+      },
+      "errors":[
+        {"shape":"ReplicationGroupNotFoundFault"},
+        {"shape":"InvalidReplicationGroupStateFault"},
+        {"shape":"InvalidCacheClusterStateFault"},
+        {"shape":"InvalidVPCNetworkStateFault"},
+        {"shape":"InsufficientCacheClusterCapacityFault"},
+        {"shape":"ClusterQuotaForCustomerExceededFault"},
+        {"shape":"NodeGroupsPerReplicationGroupQuotaExceededFault"},
+        {"shape":"NodeQuotaForCustomerExceededFault"},
+        {"shape":"NoOperationFault"},
+        {"shape":"InvalidParameterValueException"},
+        {"shape":"InvalidParameterCombinationException"}
+      ]
+    },
     "ListAllowedNodeTypeModifications":{
       "name":"ListAllowedNodeTypeModifications",
       "http":{
@@ -787,6 +904,12 @@
         "Tags":{"shape":"TagList"}
       }
     },
+    "AllowedNodeGroupId":{
+      "type":"string",
+      "max":4,
+      "min":1,
+      "pattern":"\\d+"
+    },
     "AllowedNodeTypeModificationsMessage":{
       "type":"structure",
       "members":{
@@ -858,6 +981,28 @@
       }
     },
     "AwsQueryErrorMessage":{"type":"string"},
+    "BatchApplyUpdateActionMessage":{
+      "type":"structure",
+      "required":[
+        "ReplicationGroupIds",
+        "ServiceUpdateName"
+      ],
+      "members":{
+        "ReplicationGroupIds":{"shape":"ReplicationGroupIdList"},
+        "ServiceUpdateName":{"shape":"String"}
+      }
+    },
+    "BatchStopUpdateActionMessage":{
+      "type":"structure",
+      "required":[
+        "ReplicationGroupIds",
+        "ServiceUpdateName"
+      ],
+      "members":{
+        "ReplicationGroupIds":{"shape":"ReplicationGroupIdList"},
+        "ServiceUpdateName":{"shape":"String"}
+      }
+    },
     "Boolean":{"type":"boolean"},
     "BooleanOptional":{"type":"boolean"},
     "CacheCluster":{
@@ -1272,6 +1417,18 @@
       },
       "exception":true
     },
+    "ConfigureShard":{
+      "type":"structure",
+      "required":[
+        "NodeGroupId",
+        "NewReplicaCount"
+      ],
+      "members":{
+        "NodeGroupId":{"shape":"AllowedNodeGroupId"},
+        "NewReplicaCount":{"shape":"Integer"},
+        "PreferredAvailabilityZones":{"shape":"PreferredAvailabilityZoneList"}
+      }
+    },
     "CopySnapshotMessage":{
       "type":"structure",
       "required":[
@@ -1438,6 +1595,26 @@
         "Snapshot":{"shape":"Snapshot"}
       }
     },
+    "DecreaseReplicaCountMessage":{
+      "type":"structure",
+      "required":[
+        "ReplicationGroupId",
+        "ApplyImmediately"
+      ],
+      "members":{
+        "ReplicationGroupId":{"shape":"String"},
+        "NewReplicaCount":{"shape":"IntegerOptional"},
+        "ReplicaConfiguration":{"shape":"ReplicaConfigurationList"},
+        "ReplicasToRemove":{"shape":"RemoveReplicasList"},
+        "ApplyImmediately":{"shape":"Boolean"}
+      }
+    },
+    "DecreaseReplicaCountResult":{
+      "type":"structure",
+      "members":{
+        "ReplicationGroup":{"shape":"ReplicationGroup"}
+      }
+    },
     "DeleteCacheClusterMessage":{
       "type":"structure",
       "required":["CacheClusterId"],
@@ -1616,6 +1793,15 @@
         "Marker":{"shape":"String"}
       }
     },
+    "DescribeServiceUpdatesMessage":{
+      "type":"structure",
+      "members":{
+        "ServiceUpdateName":{"shape":"String"},
+        "ServiceUpdateStatus":{"shape":"ServiceUpdateStatusList"},
+        "MaxRecords":{"shape":"IntegerOptional"},
+        "Marker":{"shape":"String"}
+      }
+    },
     "DescribeSnapshotsListMessage":{
       "type":"structure",
       "members":{
@@ -1635,6 +1821,19 @@
         "ShowNodeGroupConfig":{"shape":"BooleanOptional"}
       }
     },
+    "DescribeUpdateActionsMessage":{
+      "type":"structure",
+      "members":{
+        "ServiceUpdateName":{"shape":"String"},
+        "ReplicationGroupIds":{"shape":"ReplicationGroupIdList"},
+        "ServiceUpdateStatus":{"shape":"ServiceUpdateStatusList"},
+        "ServiceUpdateTimeRange":{"shape":"TimeRangeFilter"},
+        "UpdateActionStatus":{"shape":"UpdateActionStatusList"},
+        "ShowNodeLevelUpdateStatus":{"shape":"BooleanOptional"},
+        "MaxRecords":{"shape":"IntegerOptional"},
+        "Marker":{"shape":"String"}
+      }
+    },
     "Double":{"type":"double"},
     "EC2SecurityGroup":{
       "type":"structure",
@@ -1691,6 +1890,25 @@
         "Events":{"shape":"EventList"}
       }
     },
+    "IncreaseReplicaCountMessage":{
+      "type":"structure",
+      "required":[
+        "ReplicationGroupId",
+        "ApplyImmediately"
+      ],
+      "members":{
+        "ReplicationGroupId":{"shape":"String"},
+        "NewReplicaCount":{"shape":"IntegerOptional"},
+        "ReplicaConfiguration":{"shape":"ReplicaConfigurationList"},
+        "ApplyImmediately":{"shape":"Boolean"}
+      }
+    },
+    "IncreaseReplicaCountResult":{
+      "type":"structure",
+      "members":{
+        "ReplicationGroup":{"shape":"ReplicationGroup"}
+      }
+    },
     "InsufficientCacheClusterCapacityFault":{
       "type":"structure",
       "members":{
@@ -1758,7 +1976,8 @@
         "httpStatusCode":400,
         "senderFault":true
       },
-      "exception":true
+      "exception":true,
+      "synthetic":true
     },
     "InvalidParameterValueException":{
       "type":"structure",
@@ -1770,7 +1989,8 @@
         "httpStatusCode":400,
         "senderFault":true
       },
-      "exception":true
+      "exception":true,
+      "synthetic":true
     },
     "InvalidReplicationGroupStateFault":{
       "type":"structure",
@@ -1910,7 +2130,10 @@
         "SnapshotRetentionLimit":{"shape":"IntegerOptional"},
         "SnapshotWindow":{"shape":"String"},
         "CacheNodeType":{"shape":"String"},
-        "NodeGroupId":{"shape":"String"}
+        "NodeGroupId":{
+          "shape":"String",
+          "deprecated":true
+        }
       }
     },
     "ModifyReplicationGroupResult":{
@@ -1931,7 +2154,8 @@
         "NodeGroupCount":{"shape":"Integer"},
         "ApplyImmediately":{"shape":"Boolean"},
         "ReshardingConfiguration":{"shape":"ReshardingConfigurationList"},
-        "NodeGroupsToRemove":{"shape":"NodeGroupsToRemoveList"}
+        "NodeGroupsToRemove":{"shape":"NodeGroupsToRemoveList"},
+        "NodeGroupsToRetain":{"shape":"NodeGroupsToRetainList"}
       }
     },
     "ModifyReplicationGroupShardConfigurationResult":{
@@ -1940,12 +2164,24 @@
         "ReplicationGroup":{"shape":"ReplicationGroup"}
       }
     },
+    "NoOperationFault":{
+      "type":"structure",
+      "members":{
+      },
+      "error":{
+        "code":"NoOperationFault",
+        "httpStatusCode":400,
+        "senderFault":true
+      },
+      "exception":true
+    },
     "NodeGroup":{
       "type":"structure",
       "members":{
         "NodeGroupId":{"shape":"String"},
         "Status":{"shape":"String"},
         "PrimaryEndpoint":{"shape":"Endpoint"},
+        "ReaderEndpoint":{"shape":"Endpoint"},
         "Slots":{"shape":"String"},
         "NodeGroupMembers":{"shape":"NodeGroupMemberList"}
       }
@@ -1953,6 +2189,7 @@
     "NodeGroupConfiguration":{
       "type":"structure",
       "members":{
+        "NodeGroupId":{"shape":"AllowedNodeGroupId"},
         "Slots":{"shape":"String"},
         "ReplicaCount":{"shape":"IntegerOptional"},
         "PrimaryAvailabilityZone":{"shape":"String"},
@@ -1990,6 +2227,27 @@
         "locationName":"NodeGroupMember"
       }
     },
+    "NodeGroupMemberUpdateStatus":{
+      "type":"structure",
+      "members":{
+        "CacheClusterId":{"shape":"String"},
+        "CacheNodeId":{"shape":"String"},
+        "NodeUpdateStatus":{"shape":"NodeUpdateStatus"},
+        "NodeDeletionDate":{"shape":"TStamp"},
+        "NodeUpdateStartDate":{"shape":"TStamp"},
+        "NodeUpdateEndDate":{"shape":"TStamp"},
+        "NodeUpdateInitiatedBy":{"shape":"NodeUpdateInitiatedBy"},
+        "NodeUpdateInitiatedDate":{"shape":"TStamp"},
+        "NodeUpdateStatusModifiedDate":{"shape":"TStamp"}
+      }
+    },
+    "NodeGroupMemberUpdateStatusList":{
+      "type":"list",
+      "member":{
+        "shape":"NodeGroupMemberUpdateStatus",
+        "locationName":"NodeGroupMemberUpdateStatus"
+      }
+    },
     "NodeGroupNotFoundFault":{
       "type":"structure",
       "members":{
@@ -2001,6 +2259,20 @@
       },
       "exception":true
     },
+    "NodeGroupUpdateStatus":{
+      "type":"structure",
+      "members":{
+        "NodeGroupId":{"shape":"String"},
+        "NodeGroupMemberUpdateStatus":{"shape":"NodeGroupMemberUpdateStatusList"}
+      }
+    },
+    "NodeGroupUpdateStatusList":{
+      "type":"list",
+      "member":{
+        "shape":"NodeGroupUpdateStatus",
+        "locationName":"NodeGroupUpdateStatus"
+      }
+    },
     "NodeGroupsPerReplicationGroupQuotaExceededFault":{
       "type":"structure",
       "members":{
@@ -2015,10 +2287,17 @@
     "NodeGroupsToRemoveList":{
       "type":"list",
       "member":{
-        "shape":"String",
+        "shape":"AllowedNodeGroupId",
         "locationName":"NodeGroupToRemove"
       }
     },
+    "NodeGroupsToRetainList":{
+      "type":"list",
+      "member":{
+        "shape":"AllowedNodeGroupId",
+        "locationName":"NodeGroupToRetain"
+      }
+    },
     "NodeQuotaForClusterExceededFault":{
       "type":"structure",
       "members":{
@@ -2065,6 +2344,24 @@
       "type":"list",
       "member":{"shape":"String"}
     },
+    "NodeUpdateInitiatedBy":{
+      "type":"string",
+      "enum":[
+        "system",
+        "customer"
+      ]
+    },
+    "NodeUpdateStatus":{
+      "type":"string",
+      "enum":[
+        "not-applied",
+        "waiting-to-start",
+        "in-progress",
+        "stopping",
+        "stopped",
+        "complete"
+      ]
+    },
     "NotificationConfiguration":{
       "type":"structure",
       "members":{
@@ -2130,6 +2427,21 @@
         "locationName":"PreferredAvailabilityZone"
       }
     },
+    "ProcessedUpdateAction":{
+      "type":"structure",
+      "members":{
+        "ReplicationGroupId":{"shape":"String"},
+        "ServiceUpdateName":{"shape":"String"},
+        "UpdateActionStatus":{"shape":"UpdateActionStatus"}
+      }
+    },
+    "ProcessedUpdateActionList":{
+      "type":"list",
+      "member":{
+        "shape":"ProcessedUpdateAction",
+        "locationName":"ProcessedUpdateAction"
+      }
+    },
     "PurchaseReservedCacheNodesOfferingMessage":{
       "type":"structure",
       "required":["ReservedCacheNodesOfferingId"],
@@ -2177,6 +2489,10 @@
         "locationName":"RecurringCharge"
       }
     },
+    "RemoveReplicasList":{
+      "type":"list",
+      "member":{"shape":"String"}
+    },
     "RemoveTagsFromResourceMessage":{
       "type":"structure",
       "required":[
@@ -2188,6 +2504,13 @@
         "TagKeys":{"shape":"KeyList"}
       }
     },
+    "ReplicaConfigurationList":{
+      "type":"list",
+      "member":{
+        "shape":"ConfigureShard",
+        "locationName":"ConfigureShard"
+      }
+    },
     "ReplicationGroup":{
       "type":"structure",
       "members":{
@@ -2221,6 +2544,11 @@
       },
       "exception":true
     },
+    "ReplicationGroupIdList":{
+      "type":"list",
+      "member":{"shape":"String"},
+      "max":20
+    },
     "ReplicationGroupList":{
       "type":"list",
       "member":{
@@ -2268,7 +2596,8 @@
         "ProductDescription":{"shape":"String"},
         "OfferingType":{"shape":"String"},
         "State":{"shape":"String"},
-        "RecurringCharges":{"shape":"RecurringChargeList"}
+        "RecurringCharges":{"shape":"RecurringChargeList"},
+        "ReservationARN":{"shape":"String"}
       },
       "wrapper":true
     },
@@ -2370,6 +2699,7 @@
     "ReshardingConfiguration":{
       "type":"structure",
       "members":{
+        "NodeGroupId":{"shape":"AllowedNodeGroupId"},
         "PreferredAvailabilityZones":{"shape":"AvailabilityZonesList"}
       }
     },
@@ -2423,6 +2753,93 @@
       "type":"list",
       "member":{"shape":"SecurityGroupMembership"}
     },
+    "ServiceLinkedRoleNotFoundFault":{
+      "type":"structure",
+      "members":{
+      },
+      "error":{
+        "code":"ServiceLinkedRoleNotFoundFault",
+        "httpStatusCode":400,
+        "senderFault":true
+      },
+      "exception":true
+    },
+    "ServiceUpdate":{
+      "type":"structure",
+      "members":{
+        "ServiceUpdateName":{"shape":"String"},
+        "ServiceUpdateReleaseDate":{"shape":"TStamp"},
+        "ServiceUpdateEndDate":{"shape":"TStamp"},
+        "ServiceUpdateSeverity":{"shape":"ServiceUpdateSeverity"},
+        "ServiceUpdateRecommendedApplyByDate":{"shape":"TStamp"},
+        "ServiceUpdateStatus":{"shape":"ServiceUpdateStatus"},
+        "ServiceUpdateDescription":{"shape":"String"},
+        "ServiceUpdateType":{"shape":"ServiceUpdateType"},
+        "Engine":{"shape":"String"},
+        "EngineVersion":{"shape":"String"},
+        "AutoUpdateAfterRecommendedApplyByDate":{"shape":"BooleanOptional"},
+        "EstimatedUpdateTime":{"shape":"String"}
+      }
+    },
+    "ServiceUpdateList":{
+      "type":"list",
+      "member":{
+        "shape":"ServiceUpdate",
+        "locationName":"ServiceUpdate"
+      }
+    },
+    "ServiceUpdateNotFoundFault":{
+      "type":"structure",
+      "members":{
+      },
+      "error":{
+        "code":"ServiceUpdateNotFoundFault",
+        "httpStatusCode":404,
+        "senderFault":true
+      },
+      "exception":true
+    },
+    "ServiceUpdateSeverity":{
+      "type":"string",
+      "enum":[
+        "critical",
+        "important",
+        "medium",
+        "low"
+      ]
+    },
+    "ServiceUpdateStatus":{
+      "type":"string",
+      "enum":[
+        "available",
+        "cancelled",
+        "expired"
+      ]
+    },
+    "ServiceUpdateStatusList":{
+      "type":"list",
+      "member":{"shape":"ServiceUpdateStatus"},
+      "max":3
+    },
+    "ServiceUpdateType":{
+      "type":"string",
+      "enum":["security-update"]
+    },
+    "ServiceUpdatesMessage":{
+      "type":"structure",
+      "members":{
+        "Marker":{"shape":"String"},
+        "ServiceUpdates":{"shape":"ServiceUpdateList"}
+      }
+    },
+    "SlaMet":{
+      "type":"string",
+      "enum":[
+        "yes",
+        "no",
+        "n/a"
+      ]
+    },
     "SlotMigration":{
       "type":"structure",
       "members":{
@@ -2611,7 +3028,7 @@
       ],
       "members":{
         "ReplicationGroupId":{"shape":"String"},
-        "NodeGroupId":{"shape":"String"}
+        "NodeGroupId":{"shape":"AllowedNodeGroupId"}
       }
     },
     "TestFailoverNotAvailableFault":{
@@ -2630,6 +3047,85 @@
       "members":{
         "ReplicationGroup":{"shape":"ReplicationGroup"}
       }
+    },
+    "TimeRangeFilter":{
+      "type":"structure",
+      "members":{
+        "StartTime":{"shape":"TStamp"},
+        "EndTime":{"shape":"TStamp"}
+      }
+    },
+    "UnprocessedUpdateAction":{
+      "type":"structure",
+      "members":{
+        "ReplicationGroupId":{"shape":"String"},
+        "ServiceUpdateName":{"shape":"String"},
+        "ErrorType":{"shape":"String"},
+        "ErrorMessage":{"shape":"String"}
+      }
+    },
+    "UnprocessedUpdateActionList":{
+      "type":"list",
+      "member":{
+        "shape":"UnprocessedUpdateAction",
+        "locationName":"UnprocessedUpdateAction"
+      }
+    },
+    "UpdateAction":{
+      "type":"structure",
+      "members":{
+        "ReplicationGroupId":{"shape":"String"},
+        "ServiceUpdateName":{"shape":"String"},
+        "ServiceUpdateReleaseDate":{"shape":"TStamp"},
+        "ServiceUpdateSeverity":{"shape":"ServiceUpdateSeverity"},
+        "ServiceUpdateStatus":{"shape":"ServiceUpdateStatus"},
+        "ServiceUpdateRecommendedApplyByDate":{"shape":"TStamp"},
+        "ServiceUpdateType":{"shape":"ServiceUpdateType"},
+        "UpdateActionAvailableDate":{"shape":"TStamp"},
+        "UpdateActionStatus":{"shape":"UpdateActionStatus"},
+        "NodesUpdated":{"shape":"String"},
+        "UpdateActionStatusModifiedDate":{"shape":"TStamp"},
+        "SlaMet":{"shape":"SlaMet"},
+        "NodeGroupUpdateStatus":{"shape":"NodeGroupUpdateStatusList"},
+        "EstimatedUpdateTime":{"shape":"String"}
+      }
+    },
+    "UpdateActionList":{
+      "type":"list",
+      "member":{
+        "shape":"UpdateAction",
+        "locationName":"UpdateAction"
+      }
+    },
+    "UpdateActionResultsMessage":{
+      "type":"structure",
+      "members":{
+        "ProcessedUpdateActions":{"shape":"ProcessedUpdateActionList"},
+        "UnprocessedUpdateActions":{"shape":"UnprocessedUpdateActionList"}
+      }
+    },
+    "UpdateActionStatus":{
+      "type":"string",
+      "enum":[
+        "not-applied",
+        "waiting-to-start",
+        "in-progress",
+        "stopping",
+        "stopped",
+        "complete"
+      ]
+    },
+    "UpdateActionStatusList":{
+      "type":"list",
+      "member":{"shape":"UpdateActionStatus"},
+      "max":6
+    },
+    "UpdateActionsMessage":{
+      "type":"structure",
+      "members":{
+        "Marker":{"shape":"String"},
+        "UpdateActions":{"shape":"UpdateActionList"}
+      }
     }
   }
 }

vendor/github.com/aws/aws-sdk-go/models/apis/elasticache/2015-02-02/docs-2.json

@@ -2,16 +2,19 @@
   "version": "2.0",
   "service": "<fullname>Amazon ElastiCache</fullname> <p>Amazon ElastiCache is a web service that makes it easier to set up, operate, and scale a distributed cache in the cloud.</p> <p>With ElastiCache, customers get all of the benefits of a high-performance, in-memory cache with less of the administrative burden involved in launching and managing a distributed cache. The service makes setup, scaling, and cluster failure handling much simpler than in a self-managed cache deployment.</p> <p>In addition, through integration with Amazon CloudWatch, customers get enhanced visibility into the key performance statistics associated with their cache and can receive alarms if a part of their cache runs hot.</p>",
   "operations": {
-    "AddTagsToResource": "<p>Adds up to 50 cost allocation tags to the named resource. A cost allocation tag is a key-value pair where the key and value are case-sensitive. You can use cost allocation tags to categorize and track your AWS costs.</p> <p> When you apply tags to your ElastiCache resources, AWS generates a cost allocation report as a comma-separated value (CSV) file with your usage and costs aggregated by your tags. You can apply tags that represent business categories (such as cost centers, application names, or owners) to organize your costs across multiple services. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Tagging.html\">Using Cost Allocation Tags in Amazon ElastiCache</a> in the <i>ElastiCache User Guide</i>.</p>",
+    "AddTagsToResource": "<p>Adds up to 50 cost allocation tags to the named resource. A cost allocation tag is a key-value pair where the key and value are case-sensitive. You can use cost allocation tags to categorize and track your AWS costs.</p> <p> When you apply tags to your ElastiCache resources, AWS generates a cost allocation report as a comma-separated value (CSV) file with your usage and costs aggregated by your tags. You can apply tags that represent business categories (such as cost centers, application names, or owners) to organize your costs across multiple services. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Tagging.html\">Using Cost Allocation Tags in Amazon ElastiCache</a> in the <i>ElastiCache User Guide</i>.</p>",
     "AuthorizeCacheSecurityGroupIngress": "<p>Allows network ingress to a cache security group. Applications using ElastiCache must be running on Amazon EC2, and Amazon EC2 security groups are used as the authorization mechanism.</p> <note> <p>You cannot authorize ingress from an Amazon EC2 security group in one region to an ElastiCache cluster in another region.</p> </note>",
-    "CopySnapshot": "<p>Makes a copy of an existing snapshot.</p> <note> <p>This operation is valid for Redis only.</p> </note> <important> <p>Users or groups that have permissions to use the <code>CopySnapshot</code> operation can create their own Amazon S3 buckets and copy snapshots to it. To control access to your snapshots, use an IAM policy to control who has the ability to use the <code>CopySnapshot</code> operation. For more information about using IAM to control the use of ElastiCache operations, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Snapshots.Exporting.html\">Exporting Snapshots</a> and <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/IAM.html\">Authentication &amp; Access Control</a>.</p> </important> <p>You could receive the following error messages.</p> <p class=\"title\"> <b>Error Messages</b> </p> <ul> <li> <p> <b>Error Message:</b> The S3 bucket %s is outside of the region.</p> <p> <b>Solution:</b> Create an Amazon S3 bucket in the same region as your snapshot. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Snapshots.Exporting.html#Snapshots.Exporting.CreateBucket\">Step 1: Create an Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> <li> <p> <b>Error Message:</b> The S3 bucket %s does not exist.</p> <p> <b>Solution:</b> Create an Amazon S3 bucket in the same region as your snapshot. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Snapshots.Exporting.html#Snapshots.Exporting.CreateBucket\">Step 1: Create an Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> <li> <p> <b>Error Message:</b> The S3 bucket %s is not owned by the authenticated user.</p> <p> <b>Solution:</b> Create an Amazon S3 bucket in the same region as your snapshot. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Snapshots.Exporting.html#Snapshots.Exporting.CreateBucket\">Step 1: Create an Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> <li> <p> <b>Error Message:</b> The authenticated user does not have sufficient permissions to perform the desired activity.</p> <p> <b>Solution:</b> Contact your system administrator to get the needed permissions.</p> </li> <li> <p> <b>Error Message:</b> The S3 bucket %s already contains an object with key %s.</p> <p> <b>Solution:</b> Give the <code>TargetSnapshotName</code> a new and unique value. If exporting a snapshot, you could alternatively create a new Amazon S3 bucket and use this same value for <code>TargetSnapshotName</code>.</p> </li> <li> <p> <b>Error Message: </b> ElastiCache has not been granted READ permissions %s on the S3 Bucket.</p> <p> <b>Solution:</b> Add List and Read permissions on the bucket. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Snapshots.Exporting.html#Snapshots.Exporting.GrantAccess\">Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> <li> <p> <b>Error Message: </b> ElastiCache has not been granted WRITE permissions %s on the S3 Bucket.</p> <p> <b>Solution:</b> Add Upload/Delete permissions on the bucket. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Snapshots.Exporting.html#Snapshots.Exporting.GrantAccess\">Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> <li> <p> <b>Error Message: </b> ElastiCache has not been granted READ_ACP permissions %s on the S3 Bucket.</p> <p> <b>Solution:</b> Add View Permissions on the bucket. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Snapshots.Exporting.html#Snapshots.Exporting.GrantAccess\">Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> </ul>",
-    "CreateCacheCluster": "<p>Creates a cluster. All nodes in the cluster run the same protocol-compliant cache engine software, either Memcached or Redis.</p> <important> <p>Due to current limitations on Redis (cluster mode disabled), this operation or parameter is not supported on Redis (cluster mode enabled) replication groups.</p> </important>",
-    "CreateCacheParameterGroup": "<p>Creates a new Amazon ElastiCache cache parameter group. An ElastiCache cache parameter group is a collection of parameters and their values that are applied to all of the nodes in any cluster or replication group using the CacheParameterGroup.</p> <p>A newly created CacheParameterGroup is an exact duplicate of the default parameter group for the CacheParameterGroupFamily. To customize the newly created CacheParameterGroup you can change the values of specific parameters. For more information, see:</p> <ul> <li> <p> <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_ModifyCacheParameterGroup.html\">ModifyCacheParameterGroup</a> in the ElastiCache API Reference.</p> </li> <li> <p> <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/ParameterGroups.html\">Parameters and Parameter Groups</a> in the ElastiCache User Guide.</p> </li> </ul>",
-    "CreateCacheSecurityGroup": "<p>Creates a new cache security group. Use a cache security group to control access to one or more clusters.</p> <p>Cache security groups are only used when you are creating a cluster outside of an Amazon Virtual Private Cloud (Amazon VPC). If you are creating a cluster inside of a VPC, use a cache subnet group instead. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_CreateCacheSubnetGroup.html\">CreateCacheSubnetGroup</a>.</p>",
+    "BatchApplyUpdateAction": "<p>Apply the service update. For more information on service updates and applying them, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/applying-updates.html\">Applying Service Updates</a>.</p>",
+    "BatchStopUpdateAction": "<p>Stop the service update. For more information on service updates and stopping them, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/stopping-self-service-updates.html\">Stopping Service Updates</a>.</p>",
+    "CopySnapshot": "<p>Makes a copy of an existing snapshot.</p> <note> <p>This operation is valid for Redis only.</p> </note> <important> <p>Users or groups that have permissions to use the <code>CopySnapshot</code> operation can create their own Amazon S3 buckets and copy snapshots to it. To control access to your snapshots, use an IAM policy to control who has the ability to use the <code>CopySnapshot</code> operation. For more information about using IAM to control the use of ElastiCache operations, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/backups-exporting.html\">Exporting Snapshots</a> and <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/IAM.html\">Authentication &amp; Access Control</a>.</p> </important> <p>You could receive the following error messages.</p> <p class=\"title\"> <b>Error Messages</b> </p> <ul> <li> <p> <b>Error Message:</b> The S3 bucket %s is outside of the region.</p> <p> <b>Solution:</b> Create an Amazon S3 bucket in the same region as your snapshot. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/backups-exporting.html#backups-exporting-create-s3-bucket\">Step 1: Create an Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> <li> <p> <b>Error Message:</b> The S3 bucket %s does not exist.</p> <p> <b>Solution:</b> Create an Amazon S3 bucket in the same region as your snapshot. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/backups-exporting.html#backups-exporting-create-s3-bucket\">Step 1: Create an Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> <li> <p> <b>Error Message:</b> The S3 bucket %s is not owned by the authenticated user.</p> <p> <b>Solution:</b> Create an Amazon S3 bucket in the same region as your snapshot. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/backups-exporting.html#backups-exporting-create-s3-bucket\">Step 1: Create an Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> <li> <p> <b>Error Message:</b> The authenticated user does not have sufficient permissions to perform the desired activity.</p> <p> <b>Solution:</b> Contact your system administrator to get the needed permissions.</p> </li> <li> <p> <b>Error Message:</b> The S3 bucket %s already contains an object with key %s.</p> <p> <b>Solution:</b> Give the <code>TargetSnapshotName</code> a new and unique value. If exporting a snapshot, you could alternatively create a new Amazon S3 bucket and use this same value for <code>TargetSnapshotName</code>.</p> </li> <li> <p> <b>Error Message: </b> ElastiCache has not been granted READ permissions %s on the S3 Bucket.</p> <p> <b>Solution:</b> Add List and Read permissions on the bucket. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/backups-exporting.html#backups-exporting-grant-access.html\">Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> <li> <p> <b>Error Message: </b> ElastiCache has not been granted WRITE permissions %s on the S3 Bucket.</p> <p> <b>Solution:</b> Add Upload/Delete permissions on the bucket. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/backups-exporting.html#backups-exporting-grant-access.html\">Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> <li> <p> <b>Error Message: </b> ElastiCache has not been granted READ_ACP permissions %s on the S3 Bucket.</p> <p> <b>Solution:</b> Add View Permissions on the bucket. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/backups-exporting.html#backups-exporting-grant-access.html\">Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket</a> in the ElastiCache User Guide.</p> </li> </ul>",
+    "CreateCacheCluster": "<p>Creates a cluster. All nodes in the cluster run the same protocol-compliant cache engine software, either Memcached or Redis.</p> <p>This operation is not supported for Redis (cluster mode enabled) clusters.</p>",
+    "CreateCacheParameterGroup": "<p>Creates a new Amazon ElastiCache cache parameter group. An ElastiCache cache parameter group is a collection of parameters and their values that are applied to all of the nodes in any cluster or replication group using the CacheParameterGroup.</p> <p>A newly created CacheParameterGroup is an exact duplicate of the default parameter group for the CacheParameterGroupFamily. To customize the newly created CacheParameterGroup you can change the values of specific parameters. For more information, see:</p> <ul> <li> <p> <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_ModifyCacheParameterGroup.html\">ModifyCacheParameterGroup</a> in the ElastiCache API Reference.</p> </li> <li> <p> <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/ParameterGroups.html\">Parameters and Parameter Groups</a> in the ElastiCache User Guide.</p> </li> </ul>",
+    "CreateCacheSecurityGroup": "<p>Creates a new cache security group. Use a cache security group to control access to one or more clusters.</p> <p>Cache security groups are only used when you are creating a cluster outside of an Amazon Virtual Private Cloud (Amazon VPC). If you are creating a cluster inside of a VPC, use a cache subnet group instead. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_CreateCacheSubnetGroup.html\">CreateCacheSubnetGroup</a>.</p>",
     "CreateCacheSubnetGroup": "<p>Creates a new cache subnet group.</p> <p>Use this parameter only when you are creating a cluster in an Amazon Virtual Private Cloud (Amazon VPC).</p>",
-    "CreateReplicationGroup": "<p>Creates a Redis (cluster mode disabled) or a Redis (cluster mode enabled) replication group.</p> <p>A Redis (cluster mode disabled) replication group is a collection of clusters, where one of the clusters is a read/write primary and the others are read-only replicas. Writes to the primary are asynchronously propagated to the replicas.</p> <p>A Redis (cluster mode enabled) replication group is a collection of 1 to 15 node groups (shards). Each node group (shard) has one read/write primary node and up to 5 read-only replica nodes. Writes to the primary are asynchronously propagated to the replicas. Redis (cluster mode enabled) replication groups partition the data across node groups (shards).</p> <p>When a Redis (cluster mode disabled) replication group has been successfully created, you can add one or more read replicas to it, up to a total of 5 read replicas. You cannot alter a Redis (cluster mode enabled) replication group after it has been created. However, if you need to increase or decrease the number of node groups (console: shards), you can avail yourself of ElastiCache for Redis' enhanced backup and restore. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/backups-restoring.html\">Restoring From a Backup with Cluster Resizing</a> in the <i>ElastiCache User Guide</i>.</p> <note> <p>This operation is valid for Redis only.</p> </note>",
+    "CreateReplicationGroup": "<p>Creates a Redis (cluster mode disabled) or a Redis (cluster mode enabled) replication group.</p> <p>A Redis (cluster mode disabled) replication group is a collection of clusters, where one of the clusters is a read/write primary and the others are read-only replicas. Writes to the primary are asynchronously propagated to the replicas.</p> <p>A Redis (cluster mode enabled) replication group is a collection of 1 to 15 node groups (shards). Each node group (shard) has one read/write primary node and up to 5 read-only replica nodes. Writes to the primary are asynchronously propagated to the replicas. Redis (cluster mode enabled) replication groups partition the data across node groups (shards).</p> <p>When a Redis (cluster mode disabled) replication group has been successfully created, you can add one or more read replicas to it, up to a total of 5 read replicas. You cannot alter a Redis (cluster mode enabled) replication group after it has been created. However, if you need to increase or decrease the number of node groups (console: shards), you can avail yourself of ElastiCache for Redis' enhanced backup and restore. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/backups-restoring.html\">Restoring From a Backup with Cluster Resizing</a> in the <i>ElastiCache User Guide</i>.</p> <note> <p>This operation is valid for Redis only.</p> </note>",
     "CreateSnapshot": "<p>Creates a copy of an entire cluster or replication group at a specific moment in time.</p> <note> <p>This operation is valid for Redis only.</p> </note>",
-    "DeleteCacheCluster": "<p>Deletes a previously provisioned cluster. <code>DeleteCacheCluster</code> deletes all associated cache nodes, node endpoints and the cluster itself. When you receive a successful response from this operation, Amazon ElastiCache immediately begins deleting the cluster; you cannot cancel or revert this operation.</p> <p>This operation cannot be used to delete a cluster that is the last read replica of a replication group or node group (shard) that has Multi-AZ mode enabled or a cluster from a Redis (cluster mode enabled) replication group.</p> <important> <p>Due to current limitations on Redis (cluster mode disabled), this operation or parameter is not supported on Redis (cluster mode enabled) replication groups.</p> </important>",
+    "DecreaseReplicaCount": "<p>Dynamically decreases the number of replics in a Redis (cluster mode disabled) replication group or the number of replica nodes in one or more node groups (shards) of a Redis (cluster mode enabled) replication group. This operation is performed with no cluster down time.</p>",
+    "DeleteCacheCluster": "<p>Deletes a previously provisioned cluster. <code>DeleteCacheCluster</code> deletes all associated cache nodes, node endpoints and the cluster itself. When you receive a successful response from this operation, Amazon ElastiCache immediately begins deleting the cluster; you cannot cancel or revert this operation.</p> <p>This operation is not valid for:</p> <ul> <li> <p>Redis (cluster mode enabled) clusters</p> </li> <li> <p>A cluster that is the last read replica of a replication group</p> </li> <li> <p>A node group (shard) that has Multi-AZ mode enabled</p> </li> <li> <p>A cluster from a Redis (cluster mode enabled) replication group</p> </li> <li> <p>A cluster that is not in the <code>available</code> state</p> </li> </ul>",
     "DeleteCacheParameterGroup": "<p>Deletes the specified cache parameter group. You cannot delete a cache parameter group if it is associated with any cache clusters.</p>",
     "DeleteCacheSecurityGroup": "<p>Deletes a cache security group.</p> <note> <p>You cannot delete a cache security group if it is associated with any clusters.</p> </note>",
     "DeleteCacheSubnetGroup": "<p>Deletes a cache subnet group.</p> <note> <p>You cannot delete a cache subnet group if it is associated with any clusters.</p> </note>",
@@ -21,27 +24,30 @@
     "DescribeCacheEngineVersions": "<p>Returns a list of the available cache engines and their versions.</p>",
     "DescribeCacheParameterGroups": "<p>Returns a list of cache parameter group descriptions. If a cache parameter group name is specified, the list contains only the descriptions for that group.</p>",
     "DescribeCacheParameters": "<p>Returns the detailed parameter list for a particular cache parameter group.</p>",
-    "DescribeCacheSecurityGroups": "<p>Returns a list of cache security group descriptions. If a cache security group name is specified, the list contains only the description of that group.</p>",
-    "DescribeCacheSubnetGroups": "<p>Returns a list of cache subnet group descriptions. If a subnet group name is specified, the list contains only the description of that group.</p>",
+    "DescribeCacheSecurityGroups": "<p>Returns a list of cache security group descriptions. If a cache security group name is specified, the list contains only the description of that group. This applicable only when you have ElastiCache in Classic setup </p>",
+    "DescribeCacheSubnetGroups": "<p>Returns a list of cache subnet group descriptions. If a subnet group name is specified, the list contains only the description of that group. This is applicable only when you have ElastiCache in VPC setup. All ElastiCache clusters now launch in VPC by default. </p>",
     "DescribeEngineDefaultParameters": "<p>Returns the default engine and system parameter information for the specified cache engine.</p>",
     "DescribeEvents": "<p>Returns events related to clusters, cache security groups, and cache parameter groups. You can obtain events specific to a particular cluster, cache security group, or cache parameter group by providing the name as a parameter.</p> <p>By default, only the events occurring within the last hour are returned; however, you can retrieve up to 14 days' worth of events if necessary.</p>",
     "DescribeReplicationGroups": "<p>Returns information about a particular replication group. If no identifier is specified, <code>DescribeReplicationGroups</code> returns information about all replication groups.</p> <note> <p>This operation is valid for Redis only.</p> </note>",
     "DescribeReservedCacheNodes": "<p>Returns information about reserved cache nodes for this account, or about a specified reserved cache node.</p>",
     "DescribeReservedCacheNodesOfferings": "<p>Lists available reserved cache node offerings.</p>",
+    "DescribeServiceUpdates": "<p>Returns details of the service updates</p>",
     "DescribeSnapshots": "<p>Returns information about cluster or replication group snapshots. By default, <code>DescribeSnapshots</code> lists all of your snapshots; it can optionally describe a single snapshot, or just the snapshots associated with a particular cache cluster.</p> <note> <p>This operation is valid for Redis only.</p> </note>",
+    "DescribeUpdateActions": "<p>Returns details of the update actions </p>",
+    "IncreaseReplicaCount": "<p>Dynamically increases the number of replics in a Redis (cluster mode disabled) replication group or the number of replica nodes in one or more node groups (shards) of a Redis (cluster mode enabled) replication group. This operation is performed with no cluster down time.</p>",
     "ListAllowedNodeTypeModifications": "<p>Lists all available node types that you can scale your Redis cluster's or replication group's current node type up to.</p> <p>When you use the <code>ModifyCacheCluster</code> or <code>ModifyReplicationGroup</code> operations to scale up your cluster or replication group, the value of the <code>CacheNodeType</code> parameter must be one of the node types returned by this operation.</p>",
-    "ListTagsForResource": "<p>Lists all cost allocation tags currently on the named resource. A <code>cost allocation tag</code> is a key-value pair where the key is case-sensitive and the value is optional. You can use cost allocation tags to categorize and track your AWS costs.</p> <p>You can have a maximum of 50 cost allocation tags on an ElastiCache resource. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/BestPractices.html\">Using Cost Allocation Tags in Amazon ElastiCache</a>.</p>",
+    "ListTagsForResource": "<p>Lists all cost allocation tags currently on the named resource. A <code>cost allocation tag</code> is a key-value pair where the key is case-sensitive and the value is optional. You can use cost allocation tags to categorize and track your AWS costs.</p> <p>If the cluster is not in the <i>available</i> state, <code>ListTagsForResource</code> returns an error.</p> <p>You can have a maximum of 50 cost allocation tags on an ElastiCache resource. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Tagging.html\">Monitoring Costs with Tags</a>.</p>",
     "ModifyCacheCluster": "<p>Modifies the settings for a cluster. You can use this operation to change one or more cluster configuration parameters by specifying the parameters and the new values.</p>",
     "ModifyCacheParameterGroup": "<p>Modifies the parameters of a cache parameter group. You can modify up to 20 parameters in a single request by submitting a list parameter name and value pairs.</p>",
     "ModifyCacheSubnetGroup": "<p>Modifies an existing cache subnet group.</p>",
-    "ModifyReplicationGroup": "<p>Modifies the settings for a replication group.</p> <important> <p>Due to current limitations on Redis (cluster mode disabled), this operation or parameter is not supported on Redis (cluster mode enabled) replication groups.</p> </important> <note> <p>This operation is valid for Redis only.</p> </note>",
-    "ModifyReplicationGroupShardConfiguration": "<p>Performs horizontal scaling on a Redis (cluster mode enabled) cluster with no downtime. Requires Redis engine version 3.2.10 or newer. For information on upgrading your engine to a newer version, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/VersionManagement.html\">Upgrading Engine Versions</a> in the Amazon ElastiCache User Guide.</p> <p>For more information on ElastiCache for Redis online horizontal scaling, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/redis-cluster-resharding-online.html\">ElastiCache for Redis Horizontal Scaling</a> </p>",
+    "ModifyReplicationGroup": "<p>Modifies the settings for a replication group.</p> <p>For Redis (cluster mode enabled) clusters, this operation cannot be used to change a cluster's node type or engine version. For more information, see:</p> <ul> <li> <p> <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/scaling-redis-cluster-mode-enabled.html\">Scaling for Amazon ElastiCache for Redis (cluster mode enabled)</a> in the ElastiCache User Guide</p> </li> <li> <p> <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_ModifyReplicationGroupShardConfiguration.html\">ModifyReplicationGroupShardConfiguration</a> in the ElastiCache API Reference</p> </li> </ul> <note> <p>This operation is valid for Redis only.</p> </note>",
+    "ModifyReplicationGroupShardConfiguration": "<p>Modifies a replication group's shards (node groups) by allowing you to add shards, remove shards, or rebalance the keyspaces among exisiting shards.</p>",
     "PurchaseReservedCacheNodesOffering": "<p>Allows you to purchase a reserved cache node offering.</p>",
-    "RebootCacheCluster": "<p>Reboots some, or all, of the cache nodes within a provisioned cluster. This operation applies any modified cache parameter groups to the cluster. The reboot operation takes place as soon as possible, and results in a momentary outage to the cluster. During the reboot, the cluster status is set to REBOOTING.</p> <p>The reboot causes the contents of the cache (for each cache node being rebooted) to be lost.</p> <p>When the reboot is complete, a cluster event is created.</p> <p>Rebooting a cluster is currently supported on Memcached and Redis (cluster mode disabled) clusters. Rebooting is not supported on Redis (cluster mode enabled) clusters.</p> <p>If you make changes to parameters that require a Redis (cluster mode enabled) cluster reboot for the changes to be applied, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Clusters.Rebooting.htm\">Rebooting a Cluster</a> for an alternate process.</p>",
+    "RebootCacheCluster": "<p>Reboots some, or all, of the cache nodes within a provisioned cluster. This operation applies any modified cache parameter groups to the cluster. The reboot operation takes place as soon as possible, and results in a momentary outage to the cluster. During the reboot, the cluster status is set to REBOOTING.</p> <p>The reboot causes the contents of the cache (for each cache node being rebooted) to be lost.</p> <p>When the reboot is complete, a cluster event is created.</p> <p>Rebooting a cluster is currently supported on Memcached and Redis (cluster mode disabled) clusters. Rebooting is not supported on Redis (cluster mode enabled) clusters.</p> <p>If you make changes to parameters that require a Redis (cluster mode enabled) cluster reboot for the changes to be applied, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Clusters.Rebooting.html\">Rebooting a Cluster</a> for an alternate process.</p>",
     "RemoveTagsFromResource": "<p>Removes the tags identified by the <code>TagKeys</code> list from the named resource.</p>",
     "ResetCacheParameterGroup": "<p>Modifies the parameters of a cache parameter group to the engine or system default value. You can reset specific parameters by submitting a list of parameter names. To reset the entire cache parameter group, specify the <code>ResetAllParameters</code> and <code>CacheParameterGroupName</code> parameters.</p>",
     "RevokeCacheSecurityGroupIngress": "<p>Revokes ingress from a cache security group. Use this operation to disallow access from an Amazon EC2 security group that had been previously authorized.</p>",
-    "TestFailover": "<p>Represents the input of a <code>TestFailover</code> operation which test automatic failover on a specified node group (called shard in the console) in a replication group (called cluster in the console).</p> <p class=\"title\"> <b>Note the following</b> </p> <ul> <li> <p>A customer can use this operation to test automatic failover on up to 5 shards (called node groups in the ElastiCache API and AWS CLI) in any rolling 24-hour period.</p> </li> <li> <p>If calling this operation on shards in different clusters (called replication groups in the API and CLI), the calls can be made concurrently.</p> <p> </p> </li> <li> <p>If calling this operation multiple times on different shards in the same Redis (cluster mode enabled) replication group, the first node replacement must complete before a subsequent call can be made.</p> </li> <li> <p>To determine whether the node replacement is complete you can check Events using the Amazon ElastiCache console, the AWS CLI, or the ElastiCache API. Look for the following automatic failover related events, listed here in order of occurrance:</p> <ol> <li> <p>Replication group message: <code>Test Failover API called for node group &lt;node-group-id&gt;</code> </p> </li> <li> <p>Cache cluster message: <code>Failover from master node &lt;primary-node-id&gt; to replica node &lt;node-id&gt; completed</code> </p> </li> <li> <p>Replication group message: <code>Failover from master node &lt;primary-node-id&gt; to replica node &lt;node-id&gt; completed</code> </p> </li> <li> <p>Cache cluster message: <code>Recovering cache nodes &lt;node-id&gt;</code> </p> </li> <li> <p>Cache cluster message: <code>Finished recovery for cache nodes &lt;node-id&gt;</code> </p> </li> </ol> <p>For more information see:</p> <ul> <li> <p> <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/ECEvents.Viewing.html\">Viewing ElastiCache Events</a> in the <i>ElastiCache User Guide</i> </p> </li> <li> <p> <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_DescribeEvents.html\">DescribeEvents</a> in the ElastiCache API Reference</p> </li> </ul> </li> </ul> <p>Also see, <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/AutoFailover.html#auto-failover-test\">Testing Multi-AZ with Automatic Failover</a> in the <i>ElastiCache User Guide</i>.</p>"
+    "TestFailover": "<p>Represents the input of a <code>TestFailover</code> operation which test automatic failover on a specified node group (called shard in the console) in a replication group (called cluster in the console).</p> <p class=\"title\"> <b>Note the following</b> </p> <ul> <li> <p>A customer can use this operation to test automatic failover on up to 5 shards (called node groups in the ElastiCache API and AWS CLI) in any rolling 24-hour period.</p> </li> <li> <p>If calling this operation on shards in different clusters (called replication groups in the API and CLI), the calls can be made concurrently.</p> <p> </p> </li> <li> <p>If calling this operation multiple times on different shards in the same Redis (cluster mode enabled) replication group, the first node replacement must complete before a subsequent call can be made.</p> </li> <li> <p>To determine whether the node replacement is complete you can check Events using the Amazon ElastiCache console, the AWS CLI, or the ElastiCache API. Look for the following automatic failover related events, listed here in order of occurrance:</p> <ol> <li> <p>Replication group message: <code>Test Failover API called for node group &lt;node-group-id&gt;</code> </p> </li> <li> <p>Cache cluster message: <code>Failover from master node &lt;primary-node-id&gt; to replica node &lt;node-id&gt; completed</code> </p> </li> <li> <p>Replication group message: <code>Failover from master node &lt;primary-node-id&gt; to replica node &lt;node-id&gt; completed</code> </p> </li> <li> <p>Cache cluster message: <code>Recovering cache nodes &lt;node-id&gt;</code> </p> </li> <li> <p>Cache cluster message: <code>Finished recovery for cache nodes &lt;node-id&gt;</code> </p> </li> </ol> <p>For more information see:</p> <ul> <li> <p> <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/ECEvents.Viewing.html\">Viewing ElastiCache Events</a> in the <i>ElastiCache User Guide</i> </p> </li> <li> <p> <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_DescribeEvents.html\">DescribeEvents</a> in the ElastiCache API Reference</p> </li> </ul> </li> </ul> <p>Also see, <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/AutoFailover.html#auto-failover-test\">Testing Multi-AZ with Automatic Failover</a> in the <i>ElastiCache User Guide</i>.</p>"
   },
   "shapes": {
     "APICallRateForCustomerExceededFault": {
@@ -53,7 +59,7 @@
       "base": null,
       "refs": {
         "CreateCacheClusterMessage$AZMode": "<p>Specifies whether the nodes in this Memcached cluster are created in a single Availability Zone or created across multiple Availability Zones in the cluster's region.</p> <p>This parameter is only supported for Memcached clusters.</p> <p>If the <code>AZMode</code> and <code>PreferredAvailabilityZones</code> are not specified, ElastiCache assumes <code>single-az</code> mode.</p>",
-        "ModifyCacheClusterMessage$AZMode": "<p>Specifies whether the new nodes in this Memcached cluster are all created in a single Availability Zone or created across multiple Availability Zones.</p> <p>Valid values: <code>single-az</code> | <code>cross-az</code>.</p> <p>This option is only supported for Memcached clusters.</p> <note> <p>You cannot specify <code>single-az</code> if the Memcached cluster already has cache nodes in different Availability Zones. If <code>cross-az</code> is specified, existing Memcached nodes remain in their current Availability Zone.</p> <p>Only newly created nodes are located in different Availability Zones. For instructions on how to move existing Memcached nodes to different Availability Zones, see the <b>Availability Zone Considerations</b> section of <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheNode.Memcached.html\">Cache Node Considerations for Memcached</a>.</p> </note>"
+        "ModifyCacheClusterMessage$AZMode": "<p>Specifies whether the new nodes in this Memcached cluster are all created in a single Availability Zone or created across multiple Availability Zones.</p> <p>Valid values: <code>single-az</code> | <code>cross-az</code>.</p> <p>This option is only supported for Memcached clusters.</p> <note> <p>You cannot specify <code>single-az</code> if the Memcached cluster already has cache nodes in different Availability Zones. If <code>cross-az</code> is specified, existing Memcached nodes remain in their current Availability Zone.</p> <p>Only newly created nodes are located in different Availability Zones. For instructions on how to move existing Memcached nodes to different Availability Zones, see the <b>Availability Zone Considerations</b> section of <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/mem-ug/CacheNode.Memcached.html\">Cache Node Considerations for Memcached</a>.</p> </note>"
       }
     },
     "AddTagsToResourceMessage": {
@@ -61,6 +67,17 @@
       "refs": {
       }
     },
+    "AllowedNodeGroupId": {
+      "base": null,
+      "refs": {
+        "ConfigureShard$NodeGroupId": "<p>The 4-digit id for the node group you are configuring. For Redis (cluster mode disabled) replication groups, the node group id is always 0001. To find a Redis (cluster mode enabled)'s node group's (shard's) id, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/shard-find-id.html\">Finding a Shard's Id</a>.</p>",
+        "NodeGroupConfiguration$NodeGroupId": "<p>Either the ElastiCache for Redis supplied 4-digit id or a user supplied id for the node group these configuration values apply to.</p>",
+        "NodeGroupsToRemoveList$member": null,
+        "NodeGroupsToRetainList$member": null,
+        "ReshardingConfiguration$NodeGroupId": "<p>Either the ElastiCache for Redis supplied 4-digit id or a user supplied id for the node group these configuration values apply to.</p>",
+        "TestFailoverMessage$NodeGroupId": "<p>The name of the node group (called shard in the console) in this replication group on which automatic failover is to be tested. You may test automatic failover on up to 5 node groups in any rolling 24-hour period.</p>"
+      }
+    },
     "AllowedNodeTypeModificationsMessage": {
       "base": "<p>Represents the allowed node types you can use to modify your cluster or replication group.</p>",
       "refs": {
@@ -89,8 +106,8 @@
     "AutomaticFailoverStatus": {
       "base": null,
       "refs": {
-        "ReplicationGroup$AutomaticFailover": "<p>Indicates the status of Multi-AZ with automatic failover for this Redis replication group.</p> <p>Amazon ElastiCache for Redis does not support Multi-AZ with automatic failover on:</p> <ul> <li> <p>Redis versions earlier than 2.8.6.</p> </li> <li> <p>Redis (cluster mode disabled): T1 and T2 cache node types.</p> </li> <li> <p>Redis (cluster mode enabled): T1 node types.</p> </li> </ul>",
-        "Snapshot$AutomaticFailover": "<p>Indicates the status of Multi-AZ with automatic failover for the source Redis replication group.</p> <p>Amazon ElastiCache for Redis does not support Multi-AZ with automatic failover on:</p> <ul> <li> <p>Redis versions earlier than 2.8.6.</p> </li> <li> <p>Redis (cluster mode disabled): T1 and T2 cache node types.</p> </li> <li> <p>Redis (cluster mode enabled): T1 node types.</p> </li> </ul>"
+        "ReplicationGroup$AutomaticFailover": "<p>Indicates the status of Multi-AZ with automatic failover for this Redis replication group.</p> <p>Amazon ElastiCache for Redis does not support Multi-AZ with automatic failover on:</p> <ul> <li> <p>Redis versions earlier than 2.8.6.</p> </li> <li> <p>Redis (cluster mode disabled): T1 node types.</p> </li> <li> <p>Redis (cluster mode enabled): T1 node types.</p> </li> </ul>",
+        "Snapshot$AutomaticFailover": "<p>Indicates the status of Multi-AZ with automatic failover for the source Redis replication group.</p> <p>Amazon ElastiCache for Redis does not support Multi-AZ with automatic failover on:</p> <ul> <li> <p>Redis versions earlier than 2.8.6.</p> </li> <li> <p>Redis (cluster mode disabled): T1 node types.</p> </li> <li> <p>Redis (cluster mode enabled): T1 node types.</p> </li> </ul>"
       }
     },
     "AvailabilityZone": {
@@ -114,12 +131,24 @@
         "InvalidParameterValueException$message": "<p>A parameter value is invalid.</p>"
       }
     },
+    "BatchApplyUpdateActionMessage": {
+      "base": null,
+      "refs": {
+      }
+    },
+    "BatchStopUpdateActionMessage": {
+      "base": null,
+      "refs": {
+      }
+    },
     "Boolean": {
       "base": null,
       "refs": {
         "CacheCluster$AutoMinorVersionUpgrade": "<p>This parameter is currently disabled.</p>",
         "CacheNodeTypeSpecificParameter$IsModifiable": "<p>Indicates whether (<code>true</code>) or not (<code>false</code>) the parameter can be modified. Some parameters have security or operational implications that prevent them from being changed.</p>",
+        "DecreaseReplicaCountMessage$ApplyImmediately": "<p>If <code>True</code>, the number of replica nodes is decreased immediately. <code>ApplyImmediately=False</code> is not currently supported.</p>",
         "DescribeCacheEngineVersionsMessage$DefaultOnly": "<p>If <code>true</code>, specifies that only the default version of the specified engine or engine and major version combination is to be returned.</p>",
+        "IncreaseReplicaCountMessage$ApplyImmediately": "<p>If <code>True</code>, the number of replica nodes is increased immediately. <code>ApplyImmediately=False</code> is not currently supported.</p>",
         "ModifyCacheClusterMessage$ApplyImmediately": "<p>If <code>true</code>, this parameter causes the modifications in this request and any pending modifications to be applied, asynchronously and as soon as possible, regardless of the <code>PreferredMaintenanceWindow</code> setting for the cluster.</p> <p>If <code>false</code>, changes to the cluster are applied on the next maintenance reboot, or the next failure reboot, whichever occurs first.</p> <important> <p>If you perform a <code>ModifyCacheCluster</code> before a pending modification is applied, the pending modification is replaced by the newer modification.</p> </important> <p>Valid values: <code>true</code> | <code>false</code> </p> <p>Default: <code>false</code> </p>",
         "ModifyReplicationGroupMessage$ApplyImmediately": "<p>If <code>true</code>, this parameter causes the modifications in this request and any pending modifications to be applied, asynchronously and as soon as possible, regardless of the <code>PreferredMaintenanceWindow</code> setting for the replication group.</p> <p>If <code>false</code>, changes to the nodes in the replication group are applied on the next maintenance reboot, or the next failure reboot, whichever occurs first.</p> <p>Valid values: <code>true</code> | <code>false</code> </p> <p>Default: <code>false</code> </p>",
         "ModifyReplicationGroupShardConfigurationMessage$ApplyImmediately": "<p>Indicates that the shard reconfiguration process begins immediately. At present, the only permitted value for this parameter is <code>true</code>.</p> <p>Value: true</p>",
@@ -132,24 +161,26 @@
       "base": null,
       "refs": {
         "CacheCluster$AuthTokenEnabled": "<p>A flag that enables using an <code>AuthToken</code> (password) when issuing Redis commands.</p> <p>Default: <code>false</code> </p>",
-        "CacheCluster$TransitEncryptionEnabled": "<p>A flag that enables in-transit encryption when set to <code>true</code>.</p> <p>You cannot modify the value of <code>TransitEncryptionEnabled</code> after the cluster is created. To enable in-transit encryption on a cluster you must set <code>TransitEncryptionEnabled</code> to <code>true</code> when you create a cluster.</p> <p>Default: <code>false</code> </p>",
-        "CacheCluster$AtRestEncryptionEnabled": "<p>A flag that enables encryption at-rest when set to <code>true</code>.</p> <p>You cannot modify the value of <code>AtRestEncryptionEnabled</code> after the cluster is created. To enable at-rest encryption on a cluster you must set <code>AtRestEncryptionEnabled</code> to <code>true</code> when you create a cluster.</p> <p>Default: <code>false</code> </p>",
+        "CacheCluster$TransitEncryptionEnabled": "<p>A flag that enables in-transit encryption when set to <code>true</code>.</p> <p>You cannot modify the value of <code>TransitEncryptionEnabled</code> after the cluster is created. To enable in-transit encryption on a cluster you must set <code>TransitEncryptionEnabled</code> to <code>true</code> when you create a cluster.</p> <p> <b>Required:</b> Only available when creating a replication group in an Amazon VPC using redis version <code>3.2.6</code> or <code>4.x</code>.</p> <p>Default: <code>false</code> </p>",
+        "CacheCluster$AtRestEncryptionEnabled": "<p>A flag that enables encryption at-rest when set to <code>true</code>.</p> <p>You cannot modify the value of <code>AtRestEncryptionEnabled</code> after the cluster is created. To enable at-rest encryption on a cluster you must set <code>AtRestEncryptionEnabled</code> to <code>true</code> when you create a cluster.</p> <p> <b>Required:</b> Only available when creating a replication group in an Amazon VPC using redis version <code>3.2.6</code> or <code>4.x</code>.</p> <p>Default: <code>false</code> </p>",
         "CreateCacheClusterMessage$AutoMinorVersionUpgrade": "<p>This parameter is currently disabled.</p>",
-        "CreateReplicationGroupMessage$AutomaticFailoverEnabled": "<p>Specifies whether a read-only replica is automatically promoted to read/write primary if the existing primary fails.</p> <p>If <code>true</code>, Multi-AZ is enabled for this replication group. If <code>false</code>, Multi-AZ is disabled for this replication group.</p> <p> <code>AutomaticFailoverEnabled</code> must be enabled for Redis (cluster mode enabled) replication groups.</p> <p>Default: false</p> <p>Amazon ElastiCache for Redis does not support Multi-AZ with automatic failover on:</p> <ul> <li> <p>Redis versions earlier than 2.8.6.</p> </li> <li> <p>Redis (cluster mode disabled): T1 and T2 cache node types.</p> </li> <li> <p>Redis (cluster mode enabled): T1 node types.</p> </li> </ul>",
+        "CreateReplicationGroupMessage$AutomaticFailoverEnabled": "<p>Specifies whether a read-only replica is automatically promoted to read/write primary if the existing primary fails.</p> <p>If <code>true</code>, Multi-AZ is enabled for this replication group. If <code>false</code>, Multi-AZ is disabled for this replication group.</p> <p> <code>AutomaticFailoverEnabled</code> must be enabled for Redis (cluster mode enabled) replication groups.</p> <p>Default: false</p> <p>Amazon ElastiCache for Redis does not support Multi-AZ with automatic failover on:</p> <ul> <li> <p>Redis versions earlier than 2.8.6.</p> </li> <li> <p>Redis (cluster mode disabled): T1 node types.</p> </li> <li> <p>Redis (cluster mode enabled): T1 node types.</p> </li> </ul>",
         "CreateReplicationGroupMessage$AutoMinorVersionUpgrade": "<p>This parameter is currently disabled.</p>",
-        "CreateReplicationGroupMessage$TransitEncryptionEnabled": "<p>A flag that enables in-transit encryption when set to <code>true</code>.</p> <p>You cannot modify the value of <code>TransitEncryptionEnabled</code> after the cluster is created. To enable in-transit encryption on a cluster you must set <code>TransitEncryptionEnabled</code> to <code>true</code> when you create a cluster.</p> <p>This parameter is valid only if the <code>Engine</code> parameter is <code>redis</code>, the <code>EngineVersion</code> parameter is <code>3.2.4</code> or later, and the cluster is being created in an Amazon VPC.</p> <p>If you enable in-transit encryption, you must also specify a value for <code>CacheSubnetGroup</code>.</p> <p>Default: <code>false</code> </p>",
-        "CreateReplicationGroupMessage$AtRestEncryptionEnabled": "<p>A flag that enables encryption at rest when set to <code>true</code>.</p> <p>You cannot modify the value of <code>AtRestEncryptionEnabled</code> after the replication group is created. To enable encryption at rest on a replication group you must set <code>AtRestEncryptionEnabled</code> to <code>true</code> when you create the replication group. </p> <note> <p>This parameter is valid only if the <code>Engine</code> parameter is <code>redis</code> and the cluster is being created in an Amazon VPC.</p> </note> <p>Default: <code>false</code> </p>",
+        "CreateReplicationGroupMessage$TransitEncryptionEnabled": "<p>A flag that enables in-transit encryption when set to <code>true</code>.</p> <p>You cannot modify the value of <code>TransitEncryptionEnabled</code> after the cluster is created. To enable in-transit encryption on a cluster you must set <code>TransitEncryptionEnabled</code> to <code>true</code> when you create a cluster.</p> <p>This parameter is valid only if the <code>Engine</code> parameter is <code>redis</code>, the <code>EngineVersion</code> parameter is <code>3.2.6</code> or <code>4.x</code>, and the cluster is being created in an Amazon VPC.</p> <p>If you enable in-transit encryption, you must also specify a value for <code>CacheSubnetGroup</code>.</p> <p> <b>Required:</b> Only available when creating a replication group in an Amazon VPC using redis version <code>3.2.6</code> or <code>4.x</code>.</p> <p>Default: <code>false</code> </p> <important> <p>For HIPAA compliance, you must specify <code>TransitEncryptionEnabled</code> as <code>true</code>, an <code>AuthToken</code>, and a <code>CacheSubnetGroup</code>.</p> </important>",
+        "CreateReplicationGroupMessage$AtRestEncryptionEnabled": "<p>A flag that enables encryption at rest when set to <code>true</code>.</p> <p>You cannot modify the value of <code>AtRestEncryptionEnabled</code> after the replication group is created. To enable encryption at rest on a replication group you must set <code>AtRestEncryptionEnabled</code> to <code>true</code> when you create the replication group. </p> <p> <b>Required:</b> Only available when creating a replication group in an Amazon VPC using redis version <code>3.2.6</code> or <code>4.x</code>.</p> <p>Default: <code>false</code> </p>",
         "DeleteReplicationGroupMessage$RetainPrimaryCluster": "<p>If set to <code>true</code>, all of the read replicas are deleted, but the primary node is retained.</p>",
         "DescribeCacheClustersMessage$ShowCacheNodeInfo": "<p>An optional flag that can be included in the <code>DescribeCacheCluster</code> request to retrieve information about the individual cache nodes.</p>",
         "DescribeCacheClustersMessage$ShowCacheClustersNotInReplicationGroups": "<p>An optional flag that can be included in the <code>DescribeCacheCluster</code> request to show only nodes (API/CLI: clusters) that are not members of a replication group. In practice, this mean Memcached and single node Redis clusters.</p>",
         "DescribeSnapshotsMessage$ShowNodeGroupConfig": "<p>A Boolean value which if true, the node group (shard) configuration is included in the snapshot description.</p>",
+        "DescribeUpdateActionsMessage$ShowNodeLevelUpdateStatus": "<p>Dictates whether to include node level update status in the response </p>",
         "ModifyCacheClusterMessage$AutoMinorVersionUpgrade": "<p>This parameter is currently disabled.</p>",
-        "ModifyReplicationGroupMessage$AutomaticFailoverEnabled": "<p>Determines whether a read replica is automatically promoted to read/write primary if the existing primary encounters a failure.</p> <p>Valid values: <code>true</code> | <code>false</code> </p> <p>Amazon ElastiCache for Redis does not support Multi-AZ with automatic failover on:</p> <ul> <li> <p>Redis versions earlier than 2.8.6.</p> </li> <li> <p>Redis (cluster mode disabled): T1 and T2 cache node types.</p> </li> <li> <p>Redis (cluster mode enabled): T1 node types.</p> </li> </ul>",
+        "ModifyReplicationGroupMessage$AutomaticFailoverEnabled": "<p>Determines whether a read replica is automatically promoted to read/write primary if the existing primary encounters a failure.</p> <p>Valid values: <code>true</code> | <code>false</code> </p> <p>Amazon ElastiCache for Redis does not support Multi-AZ with automatic failover on:</p> <ul> <li> <p>Redis versions earlier than 2.8.6.</p> </li> <li> <p>Redis (cluster mode disabled): T1 node types.</p> </li> <li> <p>Redis (cluster mode enabled): T1 node types.</p> </li> </ul>",
         "ModifyReplicationGroupMessage$AutoMinorVersionUpgrade": "<p>This parameter is currently disabled.</p>",
         "ReplicationGroup$ClusterEnabled": "<p>A flag indicating whether or not this replication group is cluster enabled; i.e., whether its data can be partitioned across multiple shards (API/CLI: node groups).</p> <p>Valid values: <code>true</code> | <code>false</code> </p>",
         "ReplicationGroup$AuthTokenEnabled": "<p>A flag that enables using an <code>AuthToken</code> (password) when issuing Redis commands.</p> <p>Default: <code>false</code> </p>",
-        "ReplicationGroup$TransitEncryptionEnabled": "<p>A flag that enables in-transit encryption when set to <code>true</code>.</p> <p>You cannot modify the value of <code>TransitEncryptionEnabled</code> after the cluster is created. To enable in-transit encryption on a cluster you must set <code>TransitEncryptionEnabled</code> to <code>true</code> when you create a cluster.</p> <p>Default: <code>false</code> </p>",
-        "ReplicationGroup$AtRestEncryptionEnabled": "<p>A flag that enables encryption at-rest when set to <code>true</code>.</p> <p>You cannot modify the value of <code>AtRestEncryptionEnabled</code> after the cluster is created. To enable encryption at-rest on a cluster you must set <code>AtRestEncryptionEnabled</code> to <code>true</code> when you create a cluster.</p> <p>Default: <code>false</code> </p>"
+        "ReplicationGroup$TransitEncryptionEnabled": "<p>A flag that enables in-transit encryption when set to <code>true</code>.</p> <p>You cannot modify the value of <code>TransitEncryptionEnabled</code> after the cluster is created. To enable in-transit encryption on a cluster you must set <code>TransitEncryptionEnabled</code> to <code>true</code> when you create a cluster.</p> <p> <b>Required:</b> Only available when creating a replication group in an Amazon VPC using redis version <code>3.2.6</code> or <code>4.x</code>.</p> <p>Default: <code>false</code> </p>",
+        "ReplicationGroup$AtRestEncryptionEnabled": "<p>A flag that enables encryption at-rest when set to <code>true</code>.</p> <p>You cannot modify the value of <code>AtRestEncryptionEnabled</code> after the cluster is created. To enable encryption at-rest on a cluster you must set <code>AtRestEncryptionEnabled</code> to <code>true</code> when you create a cluster.</p> <p> <b>Required:</b> Only available when creating a replication group in an Amazon VPC using redis version <code>3.2.6</code> or <code>4.x</code>.</p> <p>Default: <code>false</code> </p>",
+        "ServiceUpdate$AutoUpdateAfterRecommendedApplyByDate": "<p>Indicates whether the service update will be automatically applied once the recommended apply-by date has expired. </p>"
       }
     },
     "CacheCluster": {
@@ -201,7 +232,7 @@
       }
     },
     "CacheNode": {
-      "base": "<p>Represents an individual cache node within a cluster. Each cache node runs its own instance of the cluster's protocol-compliant caching software - either Memcached or Redis.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Notes:</b> </p> <ul> <li> <p>All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).</p> </li> <li> <p>Redis (cluster mode disabled): Redis backup/restore is not supported on T1 and T2 instances. </p> </li> <li> <p>Redis (cluster mode enabled): Backup/restore is not supported on T1 instances.</p> </li> <li> <p>Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.</p> </li> </ul> <p>For a complete listing of node types and specifications, see <a href=\"http://aws.amazon.com/elasticache/details\">Amazon ElastiCache Product Features and Details</a> and either <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Memcached.html#ParameterGroups.Memcached.NodeSpecific\">Cache Node Type-Specific Parameters for Memcached</a> or <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Redis.html#ParameterGroups.Redis.NodeSpecific\">Cache Node Type-Specific Parameters for Redis</a>.</p>",
+      "base": "<p>Represents an individual cache node within a cluster. Each cache node runs its own instance of the cluster's protocol-compliant caching software - either Memcached or Redis.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>M5 node types:</b> <code>cache.m5.large</code>, <code>cache.m5.xlarge</code>, <code>cache.m5.2xlarge</code>, <code>cache.m5.4xlarge</code>, <code>cache.m5.12xlarge</code>, <code>cache.m5.24xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R5 node types:</b> <code>cache.r5.large</code>, <code>cache.r5.xlarge</code>, <code>cache.r5.2xlarge</code>, <code>cache.r5.4xlarge</code>, <code>cache.r5.12xlarge</code>, <code>cache.r5.24xlarge</code> </p> <p> <b>R4 node types:</b> <code>cache.r4.large</code>, <code>cache.r4.xlarge</code>, <code>cache.r4.2xlarge</code>, <code>cache.r4.4xlarge</code>, <code>cache.r4.8xlarge</code>, <code>cache.r4.16xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Additional node type info</b> </p> <ul> <li> <p>All current generation instance types are created in Amazon VPC by default.</p> </li> <li> <p>Redis append-only files (AOF) are not supported for T1 or T2 instances.</p> </li> <li> <p>Redis Multi-AZ with automatic failover is not supported on T1 instances.</p> </li> <li> <p>Redis configuration variables <code>appendonly</code> and <code>appendfsync</code> are not supported on Redis version 2.8.22 and later.</p> </li> </ul>",
       "refs": {
         "CacheNodeList$member": null
       }
@@ -211,7 +242,7 @@
       "refs": {
         "CacheParameterGroupStatus$CacheNodeIdsToReboot": "<p>A list of the cache node IDs which need to be rebooted for parameter changes to be applied. A node ID is a numeric identifier (0001, 0002, etc.).</p>",
         "ModifyCacheClusterMessage$CacheNodeIdsToRemove": "<p>A list of cache node IDs to be removed. A node ID is a numeric identifier (0001, 0002, etc.). This parameter is only valid when <code>NumCacheNodes</code> is less than the existing number of cache nodes. The number of cache node IDs supplied in this parameter must match the difference between the existing number of cache nodes in the cluster or pending cache nodes, whichever is greater, and the value of <code>NumCacheNodes</code> in the request.</p> <p>For example: If you have 3 active cache nodes, 7 pending cache nodes, and the number of cache nodes in this <code>ModifyCacheCluster</code> call is 5, you must list 2 (7 - 5) cache node IDs to remove.</p>",
-        "PendingModifiedValues$CacheNodeIdsToRemove": "<p>A list of cache node IDs that are being removed (or will be removed) from the cluster. A node ID is a numeric identifier (0001, 0002, etc.).</p>",
+        "PendingModifiedValues$CacheNodeIdsToRemove": "<p>A list of cache node IDs that are being removed (or will be removed) from the cluster. A node ID is a 4-digit numeric identifier (0001, 0002, etc.).</p>",
         "RebootCacheClusterMessage$CacheNodeIdsToReboot": "<p>A list of cache node IDs to reboot. A node ID is a numeric identifier (0001, 0002, etc.). To reboot an entire cluster, specify all of the cache node IDs.</p>"
       }
     },
@@ -398,14 +429,14 @@
     "ChangeType": {
       "base": null,
       "refs": {
-        "CacheNodeTypeSpecificParameter$ChangeType": "<p>Indicates whether a change to the parameter is applied immediately or requires a reboot for the change to be applied. You can force a reboot or wait until the next maintenance window's reboot. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Clusters.Rebooting.html\">Rebooting a Cluster</a>.</p>",
-        "Parameter$ChangeType": "<p>Indicates whether a change to the parameter is applied immediately or requires a reboot for the change to be applied. You can force a reboot or wait until the next maintenance window's reboot. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Clusters.Rebooting.html\">Rebooting a Cluster</a>.</p>"
+        "CacheNodeTypeSpecificParameter$ChangeType": "<p>Indicates whether a change to the parameter is applied immediately or requires a reboot for the change to be applied. You can force a reboot or wait until the next maintenance window's reboot. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Clusters.Rebooting.html\">Rebooting a Cluster</a>.</p>",
+        "Parameter$ChangeType": "<p>Indicates whether a change to the parameter is applied immediately or requires a reboot for the change to be applied. You can force a reboot or wait until the next maintenance window's reboot. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Clusters.Rebooting.html\">Rebooting a Cluster</a>.</p>"
       }
     },
     "ClusterIdList": {
       "base": null,
       "refs": {
-        "ReplicationGroup$MemberClusters": "<p>The identifiers of all the nodes that are part of this replication group.</p>"
+        "ReplicationGroup$MemberClusters": "<p>The names of all the cache clusters that are part of this replication group.</p>"
       }
     },
     "ClusterQuotaForCustomerExceededFault": {
@@ -413,6 +444,12 @@
       "refs": {
       }
     },
+    "ConfigureShard": {
+      "base": "<p>Node group (shard) configuration options when adding or removing replicas. Each node group (shard) configuration has the following members: NodeGroupId, NewReplicaCount, and PreferredAvailabilityZones. </p>",
+      "refs": {
+        "ReplicaConfigurationList$member": null
+      }
+    },
     "CopySnapshotMessage": {
       "base": "<p>Represents the input of a <code>CopySnapshotMessage</code> operation.</p>",
       "refs": {
@@ -483,6 +520,16 @@
       "refs": {
       }
     },
+    "DecreaseReplicaCountMessage": {
+      "base": null,
+      "refs": {
+      }
+    },
+    "DecreaseReplicaCountResult": {
+      "base": null,
+      "refs": {
+      }
+    },
     "DeleteCacheClusterMessage": {
       "base": "<p>Represents the input of a <code>DeleteCacheCluster</code> operation.</p>",
       "refs": {
@@ -588,6 +635,11 @@
       "refs": {
       }
     },
+    "DescribeServiceUpdatesMessage": {
+      "base": null,
+      "refs": {
+      }
+    },
     "DescribeSnapshotsListMessage": {
       "base": "<p>Represents the output of a <code>DescribeSnapshots</code> operation.</p>",
       "refs": {
@@ -598,6 +650,11 @@
       "refs": {
       }
     },
+    "DescribeUpdateActionsMessage": {
+      "base": null,
+      "refs": {
+      }
+    },
     "Double": {
       "base": null,
       "refs": {
@@ -627,7 +684,8 @@
         "CacheCluster$ConfigurationEndpoint": "<p>Represents a Memcached cluster endpoint which, if Automatic Discovery is enabled on the cluster, can be used by an application to connect to any node in the cluster. The configuration endpoint will always have <code>.cfg</code> in it.</p> <p>Example: <code>mem-3.9dvc4r<u>.cfg</u>.usw2.cache.amazonaws.com:11211</code> </p>",
         "CacheNode$Endpoint": "<p>The hostname for connecting to this cache node.</p>",
         "NodeGroup$PrimaryEndpoint": "<p>The endpoint of the primary node in this node group (shard).</p>",
-        "NodeGroupMember$ReadEndpoint": null,
+        "NodeGroup$ReaderEndpoint": "<p>The endpoint of the replica nodes in this node group (shard).</p>",
+        "NodeGroupMember$ReadEndpoint": "<p>The information required for client programs to connect to a node for read operations. The read endpoint is only applicable on Redis (cluster mode disabled) clusters.</p>",
         "ReplicationGroup$ConfigurationEndpoint": "<p>The configuration endpoint for this replication group. Use the configuration endpoint to connect to this replication group.</p>"
       }
     },
@@ -654,14 +712,25 @@
       "refs": {
       }
     },
+    "IncreaseReplicaCountMessage": {
+      "base": null,
+      "refs": {
+      }
+    },
+    "IncreaseReplicaCountResult": {
+      "base": null,
+      "refs": {
+      }
+    },
     "InsufficientCacheClusterCapacityFault": {
-      "base": "<p>The requested cache node type is not available in the specified Availability Zone.</p>",
+      "base": "<p>The requested cache node type is not available in the specified Availability Zone. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/ErrorMessages.html#ErrorMessages.INSUFFICIENT_CACHE_CLUSTER_CAPACITY\">InsufficientCacheClusterCapacity</a> in the ElastiCache User Guide.</p>",
       "refs": {
       }
     },
     "Integer": {
       "base": null,
       "refs": {
+        "ConfigureShard$NewReplicaCount": "<p>The number of replicas you want in this node group at the end of this operation. The maximum value for <code>NewReplicaCount</code> is 5. The minimum value depends upon the type of Redis replication group you are working with.</p> <p>The minimum number of replicas in a shard or replication group is:</p> <ul> <li> <p>Redis (cluster mode disabled)</p> <ul> <li> <p>If Multi-AZ with Automatic Failover is enabled: 1</p> </li> <li> <p>If Multi-AZ with Automatic Failover is not enable: 0</p> </li> </ul> </li> <li> <p>Redis (cluster mode enabled): 0 (though you will not be able to failover to a replica if your primary node fails)</p> </li> </ul>",
         "Endpoint$Port": "<p>The port number that the cache engine is listening on.</p>",
         "ModifyReplicationGroupShardConfigurationMessage$NodeGroupCount": "<p>The number of node groups (shards) that results from the modification of the shard configuration.</p>",
         "ReservedCacheNode$Duration": "<p>The duration of the reservation in seconds.</p>",
@@ -676,12 +745,13 @@
         "CacheCluster$SnapshotRetentionLimit": "<p>The number of days for which ElastiCache retains automatic cluster snapshots before deleting them. For example, if you set <code>SnapshotRetentionLimit</code> to 5, a snapshot that was taken today is retained for 5 days before being deleted.</p> <important> <p> If the value of SnapshotRetentionLimit is set to zero (0), backups are turned off.</p> </important>",
         "CreateCacheClusterMessage$NumCacheNodes": "<p>The initial number of cache nodes that the cluster has.</p> <p>For clusters running Redis, this value must be 1. For clusters running Memcached, this value must be between 1 and 20.</p> <p>If you need more than 20 nodes for your Memcached cluster, please fill out the ElastiCache Limit Increase Request form at <a href=\"http://aws.amazon.com/contact-us/elasticache-node-limit-request/\">http://aws.amazon.com/contact-us/elasticache-node-limit-request/</a>.</p>",
         "CreateCacheClusterMessage$Port": "<p>The port number on which each of the cache nodes accepts connections.</p>",
-        "CreateCacheClusterMessage$SnapshotRetentionLimit": "<p>The number of days for which ElastiCache retains automatic snapshots before deleting them. For example, if you set <code>SnapshotRetentionLimit</code> to 5, a snapshot taken today is retained for 5 days before being deleted.</p> <note> <p>This parameter is only valid if the <code>Engine</code> parameter is <code>redis</code>.</p> </note> <p>Default: 0 (i.e., automatic backups are disabled for this cluster).</p>",
-        "CreateReplicationGroupMessage$NumCacheClusters": "<p>The number of clusters this replication group initially has.</p> <p>This parameter is not used if there is more than one node group (shard). You should use <code>ReplicasPerNodeGroup</code> instead.</p> <p>If <code>AutomaticFailoverEnabled</code> is <code>true</code>, the value of this parameter must be at least 2. If <code>AutomaticFailoverEnabled</code> is <code>false</code> you can omit this parameter (it will default to 1), or you can explicitly set it to a value between 2 and 6.</p> <p>The maximum permitted value for <code>NumCacheClusters</code> is 6 (primary plus 5 replicas).</p>",
+        "CreateCacheClusterMessage$SnapshotRetentionLimit": "<p>The number of days for which ElastiCache retains automatic snapshots before deleting them. For example, if you set <code>SnapshotRetentionLimit</code> to 5, a snapshot taken today is retained for 5 days before being deleted.</p> <note> <p>This parameter is only valid if the <code>Engine</code> parameter is <code>redis</code>.</p> </note> <p>Default: 0 (i.e., automatic backups are disabled for this cache cluster).</p>",
+        "CreateReplicationGroupMessage$NumCacheClusters": "<p>The number of clusters this replication group initially has.</p> <p>This parameter is not used if there is more than one node group (shard). You should use <code>ReplicasPerNodeGroup</code> instead.</p> <p>If <code>AutomaticFailoverEnabled</code> is <code>true</code>, the value of this parameter must be at least 2. If <code>AutomaticFailoverEnabled</code> is <code>false</code> you can omit this parameter (it will default to 1), or you can explicitly set it to a value between 2 and 6.</p> <p>The maximum permitted value for <code>NumCacheClusters</code> is 6 (1 primary plus 5 replicas).</p>",
         "CreateReplicationGroupMessage$NumNodeGroups": "<p>An optional parameter that specifies the number of node groups (shards) for this Redis (cluster mode enabled) replication group. For Redis (cluster mode disabled) either omit this parameter or set it to 1.</p> <p>Default: 1</p>",
         "CreateReplicationGroupMessage$ReplicasPerNodeGroup": "<p>An optional parameter that specifies the number of replica nodes in each node group (shard). Valid values are 0 to 5.</p>",
         "CreateReplicationGroupMessage$Port": "<p>The port number on which each member of the replication group accepts connections.</p>",
         "CreateReplicationGroupMessage$SnapshotRetentionLimit": "<p>The number of days for which ElastiCache retains automatic snapshots before deleting them. For example, if you set <code>SnapshotRetentionLimit</code> to 5, a snapshot that was taken today is retained for 5 days before being deleted.</p> <p>Default: 0 (i.e., automatic backups are disabled for this cluster).</p>",
+        "DecreaseReplicaCountMessage$NewReplicaCount": "<p>The number of read replica nodes you want at the completion of this operation. For Redis (cluster mode disabled) replication groups, this is the number of replica nodes in the replication group. For Redis (cluster mode enabled) replication groups, this is the number of replica nodes in each of the replication group's node groups.</p> <p>The minimum number of replicas in a shard or replication group is:</p> <ul> <li> <p>Redis (cluster mode disabled)</p> <ul> <li> <p>If Multi-AZ with Automatic Failover is enabled: 1</p> </li> <li> <p>If Multi-AZ with Automatic Failover is not enabled: 0</p> </li> </ul> </li> <li> <p>Redis (cluster mode enabled): 0 (though you will not be able to failover to a replica if your primary node fails)</p> </li> </ul>",
         "DescribeCacheClustersMessage$MaxRecords": "<p>The maximum number of records to include in the response. If more records exist than the specified <code>MaxRecords</code> value, a marker is included in the response so that the remaining results can be retrieved.</p> <p>Default: 100</p> <p>Constraints: minimum 20; maximum 100.</p>",
         "DescribeCacheEngineVersionsMessage$MaxRecords": "<p>The maximum number of records to include in the response. If more records exist than the specified <code>MaxRecords</code> value, a marker is included in the response so that the remaining results can be retrieved.</p> <p>Default: 100</p> <p>Constraints: minimum 20; maximum 100.</p>",
         "DescribeCacheParameterGroupsMessage$MaxRecords": "<p>The maximum number of records to include in the response. If more records exist than the specified <code>MaxRecords</code> value, a marker is included in the response so that the remaining results can be retrieved.</p> <p>Default: 100</p> <p>Constraints: minimum 20; maximum 100.</p>",
@@ -694,7 +764,10 @@
         "DescribeReplicationGroupsMessage$MaxRecords": "<p>The maximum number of records to include in the response. If more records exist than the specified <code>MaxRecords</code> value, a marker is included in the response so that the remaining results can be retrieved.</p> <p>Default: 100</p> <p>Constraints: minimum 20; maximum 100.</p>",
         "DescribeReservedCacheNodesMessage$MaxRecords": "<p>The maximum number of records to include in the response. If more records exist than the specified <code>MaxRecords</code> value, a marker is included in the response so that the remaining results can be retrieved.</p> <p>Default: 100</p> <p>Constraints: minimum 20; maximum 100.</p>",
         "DescribeReservedCacheNodesOfferingsMessage$MaxRecords": "<p>The maximum number of records to include in the response. If more records exist than the specified <code>MaxRecords</code> value, a marker is included in the response so that the remaining results can be retrieved.</p> <p>Default: 100</p> <p>Constraints: minimum 20; maximum 100.</p>",
+        "DescribeServiceUpdatesMessage$MaxRecords": "<p>The maximum number of records to include in the response</p>",
         "DescribeSnapshotsMessage$MaxRecords": "<p>The maximum number of records to include in the response. If more records exist than the specified <code>MaxRecords</code> value, a marker is included in the response so that the remaining results can be retrieved.</p> <p>Default: 50</p> <p>Constraints: minimum 20; maximum 50.</p>",
+        "DescribeUpdateActionsMessage$MaxRecords": "<p>The maximum number of records to include in the response</p>",
+        "IncreaseReplicaCountMessage$NewReplicaCount": "<p>The number of read replica nodes you want at the completion of this operation. For Redis (cluster mode disabled) replication groups, this is the number of replica nodes in the replication group. For Redis (cluster mode enabled) replication groups, this is the number of replica nodes in each of the replication group's node groups.</p>",
         "ModifyCacheClusterMessage$NumCacheNodes": "<p>The number of cache nodes that the cluster should have. If the value for <code>NumCacheNodes</code> is greater than the sum of the number of current cache nodes and the number of cache nodes pending creation (which may be zero), more nodes are added. If the value is less than the number of existing cache nodes, nodes are removed. If the value is equal to the number of current cache nodes, any pending add or remove requests are canceled.</p> <p>If you are removing cache nodes, you must use the <code>CacheNodeIdsToRemove</code> parameter to provide the IDs of the specific cache nodes to remove.</p> <p>For clusters running Redis, this value must be 1. For clusters running Memcached, this value must be between 1 and 20.</p> <note> <p>Adding or removing Memcached cache nodes can be applied immediately or as a pending operation (see <code>ApplyImmediately</code>).</p> <p>A pending operation to modify the number of cache nodes in a cluster during its maintenance window, whether by adding or removing nodes in accordance with the scale out architecture, is not queued. The customer's latest request to add or remove nodes to the cluster overrides any previous pending operations to modify the number of cache nodes in the cluster. For example, a request to remove 2 nodes would override a previous pending operation to remove 3 nodes. Similarly, a request to add 2 nodes would override a previous pending operation to remove 3 nodes and vice versa. As Memcached cache nodes may now be provisioned in different Availability Zones with flexible cache node placement, a request to add nodes does not automatically override a previous pending operation to add nodes. The customer can modify the previous pending operation to add more nodes or explicitly cancel the pending request and retry the new request. To cancel pending operations to modify the number of cache nodes in a cluster, use the <code>ModifyCacheCluster</code> request and set <code>NumCacheNodes</code> equal to the number of cache nodes currently in the cluster.</p> </note>",
         "ModifyCacheClusterMessage$SnapshotRetentionLimit": "<p>The number of days for which ElastiCache retains automatic cluster snapshots before deleting them. For example, if you set <code>SnapshotRetentionLimit</code> to 5, a snapshot that was taken today is retained for 5 days before being deleted.</p> <note> <p>If the value of <code>SnapshotRetentionLimit</code> is set to zero (0), backups are turned off.</p> </note>",
         "ModifyReplicationGroupMessage$SnapshotRetentionLimit": "<p>The number of days for which ElastiCache retains automatic node group (shard) snapshots before deleting them. For example, if you set <code>SnapshotRetentionLimit</code> to 5, a snapshot that was taken today is retained for 5 days before being deleted.</p> <p> <b>Important</b> If the value of SnapshotRetentionLimit is set to zero (0), backups are turned off.</p>",
@@ -819,6 +892,11 @@
       "refs": {
       }
     },
+    "NoOperationFault": {
+      "base": "<p>The operation was not performed because no changes were required.</p>",
+      "refs": {
+      }
+    },
     "NodeGroup": {
       "base": "<p>Represents a collection of cache nodes in a replication group. One node in the node group is the read/write primary node. All the other nodes are read-only Replica nodes.</p>",
       "refs": {
@@ -835,7 +913,7 @@
     "NodeGroupConfigurationList": {
       "base": null,
       "refs": {
-        "CreateReplicationGroupMessage$NodeGroupConfiguration": "<p>A list of node group (shard) configuration options. Each node group (shard) configuration has the following: Slots, PrimaryAvailabilityZone, ReplicaAvailabilityZones, ReplicaCount.</p> <p>If you're creating a Redis (cluster mode disabled) or a Redis (cluster mode enabled) replication group, you can use this parameter to individually configure each node group (shard), or you can omit this parameter.</p>"
+        "CreateReplicationGroupMessage$NodeGroupConfiguration": "<p>A list of node group (shard) configuration options. Each node group (shard) configuration has the following members: <code>PrimaryAvailabilityZone</code>, <code>ReplicaAvailabilityZones</code>, <code>ReplicaCount</code>, and <code>Slots</code>.</p> <p>If you're creating a Redis (cluster mode disabled) or a Redis (cluster mode enabled) replication group, you can use this parameter to individually configure each node group (shard), or you can omit this parameter. However, when seeding a Redis (cluster mode enabled) cluster from a S3 rdb file, you must configure each node group (shard) using this parameter because you must specify the slots for each node group.</p>"
       }
     },
     "NodeGroupList": {
@@ -856,11 +934,35 @@
         "NodeGroup$NodeGroupMembers": "<p>A list containing information about individual nodes within the node group (shard).</p>"
       }
     },
+    "NodeGroupMemberUpdateStatus": {
+      "base": "<p>The status of the service update on the node group member </p>",
+      "refs": {
+        "NodeGroupMemberUpdateStatusList$member": null
+      }
+    },
+    "NodeGroupMemberUpdateStatusList": {
+      "base": null,
+      "refs": {
+        "NodeGroupUpdateStatus$NodeGroupMemberUpdateStatus": "<p>The status of the service update on the node group member</p>"
+      }
+    },
     "NodeGroupNotFoundFault": {
       "base": "<p>The node group specified by the <code>NodeGroupId</code> parameter could not be found. Please verify that the node group exists and that you spelled the <code>NodeGroupId</code> value correctly.</p>",
       "refs": {
       }
     },
+    "NodeGroupUpdateStatus": {
+      "base": "<p>The status of the service update on the node group </p>",
+      "refs": {
+        "NodeGroupUpdateStatusList$member": null
+      }
+    },
+    "NodeGroupUpdateStatusList": {
+      "base": null,
+      "refs": {
+        "UpdateAction$NodeGroupUpdateStatus": "<p>The status of the service update on the node group</p>"
+      }
+    },
     "NodeGroupsPerReplicationGroupQuotaExceededFault": {
       "base": "<p>The request cannot be processed because it would exceed the maximum allowed number of node groups (shards) in a single replication group. The default maximum is 15</p>",
       "refs": {
@@ -869,7 +971,13 @@
     "NodeGroupsToRemoveList": {
       "base": null,
       "refs": {
-        "ModifyReplicationGroupShardConfigurationMessage$NodeGroupsToRemove": "<p>If the value of <code>NodeGroupCount</code> is less than the current number of node groups (shards), <code>NodeGroupsToRemove</code> is a required list of node group ids to remove from the cluster.</p>"
+        "ModifyReplicationGroupShardConfigurationMessage$NodeGroupsToRemove": "<p>If the value of <code>NodeGroupCount</code> is less than the current number of node groups (shards), then either <code>NodeGroupsToRemove</code> or <code>NodeGroupsToRetain</code> is required. <code>NodeGroupsToRemove</code> is a list of <code>NodeGroupId</code>s to remove from the cluster.</p> <p>ElastiCache for Redis will attempt to remove all node groups listed by <code>NodeGroupsToRemove</code> from the cluster.</p>"
+      }
+    },
+    "NodeGroupsToRetainList": {
+      "base": null,
+      "refs": {
+        "ModifyReplicationGroupShardConfigurationMessage$NodeGroupsToRetain": "<p>If the value of <code>NodeGroupCount</code> is less than the current number of node groups (shards), then either <code>NodeGroupsToRemove</code> or <code>NodeGroupsToRetain</code> is required. <code>NodeGroupsToRetain</code> is a list of <code>NodeGroupId</code>s to retain in the cluster.</p> <p>ElastiCache for Redis will attempt to remove all node groups except those listed by <code>NodeGroupsToRetain</code> from the cluster.</p>"
       }
     },
     "NodeQuotaForClusterExceededFault": {
@@ -900,6 +1008,18 @@
         "AllowedNodeTypeModificationsMessage$ScaleUpModifications": "<p>A string list, each element of which specifies a cache node type which you can use to scale your cluster or replication group.</p> <p>When scaling up a Redis cluster or replication group using <code>ModifyCacheCluster</code> or <code>ModifyReplicationGroup</code>, use a value from this list for the <code>CacheNodeType</code> parameter.</p>"
       }
     },
+    "NodeUpdateInitiatedBy": {
+      "base": null,
+      "refs": {
+        "NodeGroupMemberUpdateStatus$NodeUpdateInitiatedBy": "<p>Reflects whether the update was initiated by the customer or automatically applied</p>"
+      }
+    },
+    "NodeUpdateStatus": {
+      "base": null,
+      "refs": {
+        "NodeGroupMemberUpdateStatus$NodeUpdateStatus": "<p>The update status of the node</p>"
+      }
+    },
     "NotificationConfiguration": {
       "base": "<p>Describes a notification topic and its status. Notification topics are used for publishing ElastiCache events to subscribers using Amazon Simple Notification Service (SNS).</p>",
       "refs": {
@@ -935,7 +1055,7 @@
     "PendingAutomaticFailoverStatus": {
       "base": null,
       "refs": {
-        "ReplicationGroupPendingModifiedValues$AutomaticFailoverStatus": "<p>Indicates the status of Multi-AZ with automatic failover for this Redis replication group.</p> <p>Amazon ElastiCache for Redis does not support Multi-AZ with automatic failover on:</p> <ul> <li> <p>Redis versions earlier than 2.8.6.</p> </li> <li> <p>Redis (cluster mode disabled): T1 and T2 cache node types.</p> </li> <li> <p>Redis (cluster mode enabled): T1 node types.</p> </li> </ul>"
+        "ReplicationGroupPendingModifiedValues$AutomaticFailoverStatus": "<p>Indicates the status of Multi-AZ with automatic failover for this Redis replication group.</p> <p>Amazon ElastiCache for Redis does not support Multi-AZ with automatic failover on:</p> <ul> <li> <p>Redis versions earlier than 2.8.6.</p> </li> <li> <p>Redis (cluster mode disabled): T1 node types.</p> </li> <li> <p>Redis (cluster mode enabled): T1 node types.</p> </li> </ul>"
       }
     },
     "PendingModifiedValues": {
@@ -947,8 +1067,21 @@
     "PreferredAvailabilityZoneList": {
       "base": null,
       "refs": {
+        "ConfigureShard$PreferredAvailabilityZones": "<p>A list of <code>PreferredAvailabilityZone</code> strings that specify which availability zones the replication group's nodes are to be in. The nummber of <code>PreferredAvailabilityZone</code> values must equal the value of <code>NewReplicaCount</code> plus 1 to account for the primary node. If this member of <code>ReplicaConfiguration</code> is omitted, ElastiCache for Redis selects the availability zone for each of the replicas.</p>",
         "CreateCacheClusterMessage$PreferredAvailabilityZones": "<p>A list of the Availability Zones in which cache nodes are created. The order of the zones in the list is not important.</p> <p>This option is only supported on Memcached.</p> <note> <p>If you are creating your cluster in an Amazon VPC (recommended) you can only locate nodes in Availability Zones that are associated with the subnets in the selected subnet group.</p> <p>The number of Availability Zones listed must equal the value of <code>NumCacheNodes</code>.</p> </note> <p>If you want all the nodes in the same Availability Zone, use <code>PreferredAvailabilityZone</code> instead, or repeat the Availability Zone multiple times in the list.</p> <p>Default: System chosen Availability Zones.</p>",
-        "ModifyCacheClusterMessage$NewAvailabilityZones": "<p>The list of Availability Zones where the new Memcached cache nodes are created.</p> <p>This parameter is only valid when <code>NumCacheNodes</code> in the request is greater than the sum of the number of active cache nodes and the number of cache nodes pending creation (which may be zero). The number of Availability Zones supplied in this list must match the cache nodes being added in this request.</p> <p>This option is only supported on Memcached clusters.</p> <p>Scenarios:</p> <ul> <li> <p> <b>Scenario 1:</b> You have 3 active nodes and wish to add 2 nodes. Specify <code>NumCacheNodes=5</code> (3 + 2) and optionally specify two Availability Zones for the two new nodes.</p> </li> <li> <p> <b>Scenario 2:</b> You have 3 active nodes and 2 nodes pending creation (from the scenario 1 call) and want to add 1 more node. Specify <code>NumCacheNodes=6</code> ((3 + 2) + 1) and optionally specify an Availability Zone for the new node.</p> </li> <li> <p> <b>Scenario 3:</b> You want to cancel all pending operations. Specify <code>NumCacheNodes=3</code> to cancel all pending operations.</p> </li> </ul> <p>The Availability Zone placement of nodes pending creation cannot be modified. If you wish to cancel any nodes pending creation, add 0 nodes by setting <code>NumCacheNodes</code> to the number of current nodes.</p> <p>If <code>cross-az</code> is specified, existing Memcached nodes remain in their current Availability Zone. Only newly created nodes can be located in different Availability Zones. For guidance on how to move existing Memcached nodes to different Availability Zones, see the <b>Availability Zone Considerations</b> section of <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheNode.Memcached.html\">Cache Node Considerations for Memcached</a>.</p> <p> <b>Impact of new add/remove requests upon pending requests</b> </p> <ul> <li> <p>Scenario-1</p> <ul> <li> <p>Pending Action: Delete</p> </li> <li> <p>New Request: Delete</p> </li> <li> <p>Result: The new delete, pending or immediate, replaces the pending delete.</p> </li> </ul> </li> <li> <p>Scenario-2</p> <ul> <li> <p>Pending Action: Delete</p> </li> <li> <p>New Request: Create</p> </li> <li> <p>Result: The new create, pending or immediate, replaces the pending delete.</p> </li> </ul> </li> <li> <p>Scenario-3</p> <ul> <li> <p>Pending Action: Create</p> </li> <li> <p>New Request: Delete</p> </li> <li> <p>Result: The new delete, pending or immediate, replaces the pending create.</p> </li> </ul> </li> <li> <p>Scenario-4</p> <ul> <li> <p>Pending Action: Create</p> </li> <li> <p>New Request: Create</p> </li> <li> <p>Result: The new create is added to the pending create.</p> <important> <p> <b>Important:</b> If the new create request is <b>Apply Immediately - Yes</b>, all creates are performed immediately. If the new create request is <b>Apply Immediately - No</b>, all creates are pending.</p> </important> </li> </ul> </li> </ul>"
+        "ModifyCacheClusterMessage$NewAvailabilityZones": "<p>The list of Availability Zones where the new Memcached cache nodes are created.</p> <p>This parameter is only valid when <code>NumCacheNodes</code> in the request is greater than the sum of the number of active cache nodes and the number of cache nodes pending creation (which may be zero). The number of Availability Zones supplied in this list must match the cache nodes being added in this request.</p> <p>This option is only supported on Memcached clusters.</p> <p>Scenarios:</p> <ul> <li> <p> <b>Scenario 1:</b> You have 3 active nodes and wish to add 2 nodes. Specify <code>NumCacheNodes=5</code> (3 + 2) and optionally specify two Availability Zones for the two new nodes.</p> </li> <li> <p> <b>Scenario 2:</b> You have 3 active nodes and 2 nodes pending creation (from the scenario 1 call) and want to add 1 more node. Specify <code>NumCacheNodes=6</code> ((3 + 2) + 1) and optionally specify an Availability Zone for the new node.</p> </li> <li> <p> <b>Scenario 3:</b> You want to cancel all pending operations. Specify <code>NumCacheNodes=3</code> to cancel all pending operations.</p> </li> </ul> <p>The Availability Zone placement of nodes pending creation cannot be modified. If you wish to cancel any nodes pending creation, add 0 nodes by setting <code>NumCacheNodes</code> to the number of current nodes.</p> <p>If <code>cross-az</code> is specified, existing Memcached nodes remain in their current Availability Zone. Only newly created nodes can be located in different Availability Zones. For guidance on how to move existing Memcached nodes to different Availability Zones, see the <b>Availability Zone Considerations</b> section of <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/mem-ug/CacheNode.Memcached.html\">Cache Node Considerations for Memcached</a>.</p> <p> <b>Impact of new add/remove requests upon pending requests</b> </p> <ul> <li> <p>Scenario-1</p> <ul> <li> <p>Pending Action: Delete</p> </li> <li> <p>New Request: Delete</p> </li> <li> <p>Result: The new delete, pending or immediate, replaces the pending delete.</p> </li> </ul> </li> <li> <p>Scenario-2</p> <ul> <li> <p>Pending Action: Delete</p> </li> <li> <p>New Request: Create</p> </li> <li> <p>Result: The new create, pending or immediate, replaces the pending delete.</p> </li> </ul> </li> <li> <p>Scenario-3</p> <ul> <li> <p>Pending Action: Create</p> </li> <li> <p>New Request: Delete</p> </li> <li> <p>Result: The new delete, pending or immediate, replaces the pending create.</p> </li> </ul> </li> <li> <p>Scenario-4</p> <ul> <li> <p>Pending Action: Create</p> </li> <li> <p>New Request: Create</p> </li> <li> <p>Result: The new create is added to the pending create.</p> <important> <p> <b>Important:</b> If the new create request is <b>Apply Immediately - Yes</b>, all creates are performed immediately. If the new create request is <b>Apply Immediately - No</b>, all creates are pending.</p> </important> </li> </ul> </li> </ul>"
+      }
+    },
+    "ProcessedUpdateAction": {
+      "base": "<p>Update action that has been processed for the corresponding apply/stop request</p>",
+      "refs": {
+        "ProcessedUpdateActionList$member": null
+      }
+    },
+    "ProcessedUpdateActionList": {
+      "base": null,
+      "refs": {
+        "UpdateActionResultsMessage$ProcessedUpdateActions": "<p>Update actions that have been processed successfully</p>"
       }
     },
     "PurchaseReservedCacheNodesOfferingMessage": {
@@ -984,16 +1117,31 @@
         "ReservedCacheNodesOffering$RecurringCharges": "<p>The recurring price charged to run this reserved cache node.</p>"
       }
     },
+    "RemoveReplicasList": {
+      "base": null,
+      "refs": {
+        "DecreaseReplicaCountMessage$ReplicasToRemove": "<p>A list of the node ids to remove from the replication group or node group (shard).</p>"
+      }
+    },
     "RemoveTagsFromResourceMessage": {
       "base": "<p>Represents the input of a <code>RemoveTagsFromResource</code> operation.</p>",
       "refs": {
       }
     },
+    "ReplicaConfigurationList": {
+      "base": null,
+      "refs": {
+        "DecreaseReplicaCountMessage$ReplicaConfiguration": "<p>A list of <code>ConfigureShard</code> objects that can be used to configure each shard in a Redis (cluster mode enabled) replication group. The <code>ConfigureShard</code> has three members: <code>NewReplicaCount</code>, <code>NodeGroupId</code>, and <code>PreferredAvailabilityZones</code>.</p>",
+        "IncreaseReplicaCountMessage$ReplicaConfiguration": "<p>A list of <code>ConfigureShard</code> objects that can be used to configure each shard in a Redis (cluster mode enabled) replication group. The <code>ConfigureShard</code> has three members: <code>NewReplicaCount</code>, <code>NodeGroupId</code>, and <code>PreferredAvailabilityZones</code>.</p>"
+      }
+    },
     "ReplicationGroup": {
       "base": "<p>Contains all of the attributes of a specific Redis replication group.</p>",
       "refs": {
         "CreateReplicationGroupResult$ReplicationGroup": null,
+        "DecreaseReplicaCountResult$ReplicationGroup": null,
         "DeleteReplicationGroupResult$ReplicationGroup": null,
+        "IncreaseReplicaCountResult$ReplicationGroup": null,
         "ModifyReplicationGroupResult$ReplicationGroup": null,
         "ModifyReplicationGroupShardConfigurationResult$ReplicationGroup": null,
         "ReplicationGroupList$member": null,
@@ -1005,6 +1153,14 @@
       "refs": {
       }
     },
+    "ReplicationGroupIdList": {
+      "base": null,
+      "refs": {
+        "BatchApplyUpdateActionMessage$ReplicationGroupIds": "<p>The replication group IDs</p>",
+        "BatchStopUpdateActionMessage$ReplicationGroupIds": "<p>The replication group IDs</p>",
+        "DescribeUpdateActionsMessage$ReplicationGroupIds": "<p>The replication group IDs</p>"
+      }
+    },
     "ReplicationGroupList": {
       "base": null,
       "refs": {
@@ -1136,6 +1292,68 @@
         "CacheCluster$SecurityGroups": "<p>A list of VPC Security Groups associated with the cluster.</p>"
       }
     },
+    "ServiceLinkedRoleNotFoundFault": {
+      "base": "<p>The specified service linked role (SLR) was not found.</p>",
+      "refs": {
+      }
+    },
+    "ServiceUpdate": {
+      "base": "<p>An update that you can apply to your Redis clusters.</p>",
+      "refs": {
+        "ServiceUpdateList$member": null
+      }
+    },
+    "ServiceUpdateList": {
+      "base": null,
+      "refs": {
+        "ServiceUpdatesMessage$ServiceUpdates": "<p>A list of service updates</p>"
+      }
+    },
+    "ServiceUpdateNotFoundFault": {
+      "base": "<p>The service update doesn't exist</p>",
+      "refs": {
+      }
+    },
+    "ServiceUpdateSeverity": {
+      "base": null,
+      "refs": {
+        "ServiceUpdate$ServiceUpdateSeverity": "<p>The severity of the service update</p>",
+        "UpdateAction$ServiceUpdateSeverity": "<p>The severity of the service update</p>"
+      }
+    },
+    "ServiceUpdateStatus": {
+      "base": null,
+      "refs": {
+        "ServiceUpdate$ServiceUpdateStatus": "<p>The status of the service update</p>",
+        "ServiceUpdateStatusList$member": null,
+        "UpdateAction$ServiceUpdateStatus": "<p>The status of the service update</p>"
+      }
+    },
+    "ServiceUpdateStatusList": {
+      "base": null,
+      "refs": {
+        "DescribeServiceUpdatesMessage$ServiceUpdateStatus": "<p>The status of the service update</p>",
+        "DescribeUpdateActionsMessage$ServiceUpdateStatus": "<p>The status of the service update</p>"
+      }
+    },
+    "ServiceUpdateType": {
+      "base": null,
+      "refs": {
+        "ServiceUpdate$ServiceUpdateType": "<p>Reflects the nature of the service update</p>",
+        "UpdateAction$ServiceUpdateType": "<p>Reflects the nature of the service update </p>"
+      }
+    },
+    "ServiceUpdatesMessage": {
+      "base": null,
+      "refs": {
+      }
+    },
+    "SlaMet": {
+      "base": null,
+      "refs": {
+        "UpdateAction$SlaMet": "<p>If yes, all nodes in the replication group have been updated by the recommended apply-by date. If no, at least one node in the replication group have not been updated by the recommended apply-by date. If N/A, the replication group was created after the recommended apply-by date.</p>"
+      }
+    },
     "SlotMigration": {
       "base": "<p>Represents the progress of an online resharding operation.</p>",
       "refs": {
@@ -1194,15 +1412,17 @@
     "String": {
       "base": null,
       "refs": {
-        "AddTagsToResourceMessage$ResourceName": "<p>The Amazon Resource Name (ARN) of the resource to which the tags are to be added, for example <code>arn:aws:elasticache:us-west-2:0123456789:cluster:myCluster</code> or <code>arn:aws:elasticache:us-west-2:0123456789:snapshot:mySnapshot</code>. ElastiCache resources are <i>cluster</i> and <i>snapshot</i>.</p> <p>For more information about ARNs, see <a href=\"http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html\">Amazon Resource Names (ARNs) and AWS Service Namespaces</a>.</p>",
+        "AddTagsToResourceMessage$ResourceName": "<p>The Amazon Resource Name (ARN) of the resource to which the tags are to be added, for example <code>arn:aws:elasticache:us-west-2:0123456789:cluster:myCluster</code> or <code>arn:aws:elasticache:us-west-2:0123456789:snapshot:mySnapshot</code>. ElastiCache resources are <i>cluster</i> and <i>snapshot</i>.</p> <p>For more information about ARNs, see <a href=\"https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html\">Amazon Resource Names (ARNs) and AWS Service Namespaces</a>.</p>",
         "AuthorizeCacheSecurityGroupIngressMessage$CacheSecurityGroupName": "<p>The cache security group that allows network ingress.</p>",
         "AuthorizeCacheSecurityGroupIngressMessage$EC2SecurityGroupName": "<p>The Amazon EC2 security group to be authorized for ingress to the cache security group.</p>",
         "AuthorizeCacheSecurityGroupIngressMessage$EC2SecurityGroupOwnerId": "<p>The AWS account number of the Amazon EC2 security group owner. Note that this is not the same thing as an AWS access key ID - you must provide a valid AWS account number for this parameter.</p>",
         "AvailabilityZone$Name": "<p>The name of the Availability Zone.</p>",
         "AvailabilityZonesList$member": null,
+        "BatchApplyUpdateActionMessage$ServiceUpdateName": "<p>The unique ID of the service update</p>",
+        "BatchStopUpdateActionMessage$ServiceUpdateName": "<p>The unique ID of the service update</p>",
         "CacheCluster$CacheClusterId": "<p>The user-supplied identifier of the cluster. This identifier is a unique key that identifies a cluster.</p>",
         "CacheCluster$ClientDownloadLandingPage": "<p>The URL of the web page where you can download the latest ElastiCache client library.</p>",
-        "CacheCluster$CacheNodeType": "<p>The name of the compute and memory capacity node type for the cluster.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Notes:</b> </p> <ul> <li> <p>All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).</p> </li> <li> <p>Redis (cluster mode disabled): Redis backup/restore is not supported on T1 and T2 instances. </p> </li> <li> <p>Redis (cluster mode enabled): Backup/restore is not supported on T1 instances.</p> </li> <li> <p>Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.</p> </li> </ul> <p>For a complete listing of node types and specifications, see <a href=\"http://aws.amazon.com/elasticache/details\">Amazon ElastiCache Product Features and Details</a> and either <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Memcached.html#ParameterGroups.Memcached.NodeSpecific\">Cache Node Type-Specific Parameters for Memcached</a> or <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Redis.html#ParameterGroups.Redis.NodeSpecific\">Cache Node Type-Specific Parameters for Redis</a>.</p>",
+        "CacheCluster$CacheNodeType": "<p>The name of the compute and memory capacity node type for the cluster.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>M5 node types:</b> <code>cache.m5.large</code>, <code>cache.m5.xlarge</code>, <code>cache.m5.2xlarge</code>, <code>cache.m5.4xlarge</code>, <code>cache.m5.12xlarge</code>, <code>cache.m5.24xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R5 node types:</b> <code>cache.r5.large</code>, <code>cache.r5.xlarge</code>, <code>cache.r5.2xlarge</code>, <code>cache.r5.4xlarge</code>, <code>cache.r5.12xlarge</code>, <code>cache.r5.24xlarge</code> </p> <p> <b>R4 node types:</b> <code>cache.r4.large</code>, <code>cache.r4.xlarge</code>, <code>cache.r4.2xlarge</code>, <code>cache.r4.4xlarge</code>, <code>cache.r4.8xlarge</code>, <code>cache.r4.16xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Additional node type info</b> </p> <ul> <li> <p>All current generation instance types are created in Amazon VPC by default.</p> </li> <li> <p>Redis append-only files (AOF) are not supported for T1 or T2 instances.</p> </li> <li> <p>Redis Multi-AZ with automatic failover is not supported on T1 instances.</p> </li> <li> <p>Redis configuration variables <code>appendonly</code> and <code>appendfsync</code> are not supported on Redis version 2.8.22 and later.</p> </li> </ul>",
         "CacheCluster$Engine": "<p>The name of the cache engine (<code>memcached</code> or <code>redis</code>) to be used for this cluster.</p>",
         "CacheCluster$EngineVersion": "<p>The version of the cache engine that is used in this cluster.</p>",
         "CacheCluster$CacheClusterStatus": "<p>The current state of this cluster, one of the following values: <code>available</code>, <code>creating</code>, <code>deleted</code>, <code>deleting</code>, <code>incompatible-network</code>, <code>modifying</code>, <code>rebooting cluster nodes</code>, <code>restore-failed</code>, or <code>snapshotting</code>.</p>",
@@ -1214,7 +1434,7 @@
         "CacheClusterMessage$Marker": "<p>Provides an identifier to allow retrieval of paginated results.</p>",
         "CacheEngineVersion$Engine": "<p>The name of the cache engine.</p>",
         "CacheEngineVersion$EngineVersion": "<p>The version number of the cache engine.</p>",
-        "CacheEngineVersion$CacheParameterGroupFamily": "<p>The name of the cache parameter group family associated with this cache engine.</p> <p>Valid values are: <code>memcached1.4</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> </p>",
+        "CacheEngineVersion$CacheParameterGroupFamily": "<p>The name of the cache parameter group family associated with this cache engine.</p> <p>Valid values are: <code>memcached1.4</code> | <code>memcached1.5</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> | <code>redis4.0</code> | <code>redis5.0</code> | </p>",
         "CacheEngineVersion$CacheEngineDescription": "<p>The description of the cache engine.</p>",
         "CacheEngineVersion$CacheEngineVersionDescription": "<p>The description of the cache engine version.</p>",
         "CacheEngineVersionMessage$Marker": "<p>Provides an identifier to allow retrieval of paginated results.</p>",
@@ -1233,7 +1453,7 @@
         "CacheNodeTypeSpecificValue$CacheNodeType": "<p>The cache node type for which this value applies.</p>",
         "CacheNodeTypeSpecificValue$Value": "<p>The value for the cache node type.</p>",
         "CacheParameterGroup$CacheParameterGroupName": "<p>The name of the cache parameter group.</p>",
-        "CacheParameterGroup$CacheParameterGroupFamily": "<p>The name of the cache parameter group family that this cache parameter group is compatible with.</p> <p>Valid values are: <code>memcached1.4</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> </p>",
+        "CacheParameterGroup$CacheParameterGroupFamily": "<p>The name of the cache parameter group family that this cache parameter group is compatible with.</p> <p>Valid values are: <code>memcached1.4</code> | <code>memcached1.5</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> | <code>redis4.0</code> | <code>redis5.0</code> | </p>",
         "CacheParameterGroup$Description": "<p>The description for this cache parameter group.</p>",
         "CacheParameterGroupDetails$Marker": "<p>Provides an identifier to allow retrieval of paginated results.</p>",
         "CacheParameterGroupNameMessage$CacheParameterGroupName": "<p>The name of the cache parameter group.</p>",
@@ -1254,22 +1474,22 @@
         "ClusterIdList$member": null,
         "CopySnapshotMessage$SourceSnapshotName": "<p>The name of an existing snapshot from which to make a copy.</p>",
         "CopySnapshotMessage$TargetSnapshotName": "<p>A name for the snapshot copy. ElastiCache does not permit overwriting a snapshot, therefore this name must be unique within its context - ElastiCache or an Amazon S3 bucket if exporting.</p>",
-        "CopySnapshotMessage$TargetBucket": "<p>The Amazon S3 bucket to which the snapshot is exported. This parameter is used only when exporting a snapshot for external access.</p> <p>When using this parameter to export a snapshot, be sure Amazon ElastiCache has the needed permissions to this S3 bucket. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Snapshots.Exporting.html#Snapshots.Exporting.GrantAccess\">Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket</a> in the <i>Amazon ElastiCache User Guide</i>.</p> <p>For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Snapshots.Exporting.html\">Exporting a Snapshot</a> in the <i>Amazon ElastiCache User Guide</i>.</p>",
+        "CopySnapshotMessage$TargetBucket": "<p>The Amazon S3 bucket to which the snapshot is exported. This parameter is used only when exporting a snapshot for external access.</p> <p>When using this parameter to export a snapshot, be sure Amazon ElastiCache has the needed permissions to this S3 bucket. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/backups-exporting.html#backups-exporting-grant-access\">Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket</a> in the <i>Amazon ElastiCache User Guide</i>.</p> <p>For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Snapshots.Exporting.html\">Exporting a Snapshot</a> in the <i>Amazon ElastiCache User Guide</i>.</p>",
         "CreateCacheClusterMessage$CacheClusterId": "<p>The node group (shard) identifier. This parameter is stored as a lowercase string.</p> <p> <b>Constraints:</b> </p> <ul> <li> <p>A name must contain from 1 to 20 alphanumeric characters or hyphens.</p> </li> <li> <p>The first character must be a letter.</p> </li> <li> <p>A name cannot end with a hyphen or contain two consecutive hyphens.</p> </li> </ul>",
-        "CreateCacheClusterMessage$ReplicationGroupId": "<important> <p>Due to current limitations on Redis (cluster mode disabled), this operation or parameter is not supported on Redis (cluster mode enabled) replication groups.</p> </important> <p>The ID of the replication group to which this cluster should belong. If this parameter is specified, the cluster is added to the specified replication group as a read replica; otherwise, the cluster is a standalone primary that is not part of any replication group.</p> <p>If the specified replication group is Multi-AZ enabled and the Availability Zone is not specified, the cluster is created in Availability Zones that provide the best spread of read replicas across Availability Zones.</p> <note> <p>This parameter is only valid if the <code>Engine</code> parameter is <code>redis</code>.</p> </note>",
+        "CreateCacheClusterMessage$ReplicationGroupId": "<p>The ID of the replication group to which this cluster should belong. If this parameter is specified, the cluster is added to the specified replication group as a read replica; otherwise, the cluster is a standalone primary that is not part of any replication group.</p> <p>If the specified replication group is Multi-AZ enabled and the Availability Zone is not specified, the cluster is created in Availability Zones that provide the best spread of read replicas across Availability Zones.</p> <note> <p>This parameter is only valid if the <code>Engine</code> parameter is <code>redis</code>.</p> </note>",
         "CreateCacheClusterMessage$PreferredAvailabilityZone": "<p>The EC2 Availability Zone in which the cluster is created.</p> <p>All nodes belonging to this Memcached cluster are placed in the preferred Availability Zone. If you want to create your nodes across multiple Availability Zones, use <code>PreferredAvailabilityZones</code>.</p> <p>Default: System chosen Availability Zone.</p>",
-        "CreateCacheClusterMessage$CacheNodeType": "<p>The compute and memory capacity of the nodes in the node group (shard).</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Notes:</b> </p> <ul> <li> <p>All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).</p> </li> <li> <p>Redis (cluster mode disabled): Redis backup/restore is not supported on T1 and T2 instances. </p> </li> <li> <p>Redis (cluster mode enabled): Backup/restore is not supported on T1 instances.</p> </li> <li> <p>Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.</p> </li> </ul> <p>For a complete listing of node types and specifications, see <a href=\"http://aws.amazon.com/elasticache/details\">Amazon ElastiCache Product Features and Details</a> and either <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Memcached.html#ParameterGroups.Memcached.NodeSpecific\">Cache Node Type-Specific Parameters for Memcached</a> or <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Redis.html#ParameterGroups.Redis.NodeSpecific\">Cache Node Type-Specific Parameters for Redis</a>.</p>",
+        "CreateCacheClusterMessage$CacheNodeType": "<p>The compute and memory capacity of the nodes in the node group (shard).</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>M5 node types:</b> <code>cache.m5.large</code>, <code>cache.m5.xlarge</code>, <code>cache.m5.2xlarge</code>, <code>cache.m5.4xlarge</code>, <code>cache.m5.12xlarge</code>, <code>cache.m5.24xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R5 node types:</b> <code>cache.r5.large</code>, <code>cache.r5.xlarge</code>, <code>cache.r5.2xlarge</code>, <code>cache.r5.4xlarge</code>, <code>cache.r5.12xlarge</code>, <code>cache.r5.24xlarge</code> </p> <p> <b>R4 node types:</b> <code>cache.r4.large</code>, <code>cache.r4.xlarge</code>, <code>cache.r4.2xlarge</code>, <code>cache.r4.4xlarge</code>, <code>cache.r4.8xlarge</code>, <code>cache.r4.16xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Additional node type info</b> </p> <ul> <li> <p>All current generation instance types are created in Amazon VPC by default.</p> </li> <li> <p>Redis append-only files (AOF) are not supported for T1 or T2 instances.</p> </li> <li> <p>Redis Multi-AZ with automatic failover is not supported on T1 instances.</p> </li> <li> <p>Redis configuration variables <code>appendonly</code> and <code>appendfsync</code> are not supported on Redis version 2.8.22 and later.</p> </li> </ul>",
         "CreateCacheClusterMessage$Engine": "<p>The name of the cache engine to be used for this cluster.</p> <p>Valid values for this parameter are: <code>memcached</code> | <code>redis</code> </p>",
-        "CreateCacheClusterMessage$EngineVersion": "<p>The version number of the cache engine to be used for this cluster. To view the supported cache engine versions, use the DescribeCacheEngineVersions operation.</p> <p> <b>Important:</b> You can upgrade to a newer engine version (see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/SelectEngine.html#VersionManagement\">Selecting a Cache Engine and Version</a>), but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing cluster or replication group and create it anew with the earlier engine version. </p>",
+        "CreateCacheClusterMessage$EngineVersion": "<p>The version number of the cache engine to be used for this cluster. To view the supported cache engine versions, use the DescribeCacheEngineVersions operation.</p> <p> <b>Important:</b> You can upgrade to a newer engine version (see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/SelectEngine.html#VersionManagement\">Selecting a Cache Engine and Version</a>), but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing cluster or replication group and create it anew with the earlier engine version. </p>",
         "CreateCacheClusterMessage$CacheParameterGroupName": "<p>The name of the parameter group to associate with this cluster. If this argument is omitted, the default parameter group for the specified engine is used. You cannot use any parameter group which has <code>cluster-enabled='yes'</code> when creating a cluster.</p>",
-        "CreateCacheClusterMessage$CacheSubnetGroupName": "<p>The name of the subnet group to be used for the cluster.</p> <p>Use this parameter only when you are creating a cluster in an Amazon Virtual Private Cloud (Amazon VPC).</p> <important> <p>If you're going to launch your cluster in an Amazon VPC, you need to create a subnet group before you start creating a cluster. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/SubnetGroups.html\">Subnets and Subnet Groups</a>.</p> </important>",
+        "CreateCacheClusterMessage$CacheSubnetGroupName": "<p>The name of the subnet group to be used for the cluster.</p> <p>Use this parameter only when you are creating a cluster in an Amazon Virtual Private Cloud (Amazon VPC).</p> <important> <p>If you're going to launch your cluster in an Amazon VPC, you need to create a subnet group before you start creating a cluster. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/SubnetGroups.html\">Subnets and Subnet Groups</a>.</p> </important>",
         "CreateCacheClusterMessage$SnapshotName": "<p>The name of a Redis snapshot from which to restore data into the new node group (shard). The snapshot status changes to <code>restoring</code> while the new node group (shard) is being created.</p> <note> <p>This parameter is only valid if the <code>Engine</code> parameter is <code>redis</code>.</p> </note>",
         "CreateCacheClusterMessage$PreferredMaintenanceWindow": "<p>Specifies the weekly time range during which maintenance on the cluster is performed. It is specified as a range in the format ddd:hh24:mi-ddd:hh24:mi (24H Clock UTC). The minimum maintenance window is a 60 minute period. Valid values for <code>ddd</code> are:</p> <p>Specifies the weekly time range during which maintenance on the cluster is performed. It is specified as a range in the format ddd:hh24:mi-ddd:hh24:mi (24H Clock UTC). The minimum maintenance window is a 60 minute period.</p> <p>Valid values for <code>ddd</code> are:</p> <ul> <li> <p> <code>sun</code> </p> </li> <li> <p> <code>mon</code> </p> </li> <li> <p> <code>tue</code> </p> </li> <li> <p> <code>wed</code> </p> </li> <li> <p> <code>thu</code> </p> </li> <li> <p> <code>fri</code> </p> </li> <li> <p> <code>sat</code> </p> </li> </ul> <p>Example: <code>sun:23:00-mon:01:30</code> </p>",
         "CreateCacheClusterMessage$NotificationTopicArn": "<p>The Amazon Resource Name (ARN) of the Amazon Simple Notification Service (SNS) topic to which notifications are sent.</p> <note> <p>The Amazon SNS topic owner must be the same as the cluster owner.</p> </note>",
         "CreateCacheClusterMessage$SnapshotWindow": "<p>The daily time range (in UTC) during which ElastiCache begins taking a daily snapshot of your node group (shard).</p> <p>Example: <code>05:00-09:00</code> </p> <p>If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.</p> <note> <p>This parameter is only valid if the <code>Engine</code> parameter is <code>redis</code>.</p> </note>",
-        "CreateCacheClusterMessage$AuthToken": "<p> <b>Reserved parameter.</b> The password used to access a password protected server.</p> <p>This parameter is valid only if:</p> <ul> <li> <p>The parameter <code>TransitEncryptionEnabled</code> was set to <code>true</code> when the cluster was created.</p> </li> <li> <p>The line <code>requirepass</code> was added to the database configuration file.</p> </li> </ul> <p>Password constraints:</p> <ul> <li> <p>Must be only printable ASCII characters.</p> </li> <li> <p>Must be at least 16 characters and no more than 128 characters in length.</p> </li> <li> <p>Cannot contain any of the following characters: '/', '\"', or '@'. </p> </li> </ul> <p>For more information, see <a href=\"http://redis.io/commands/AUTH\">AUTH password</a> at http://redis.io/commands/AUTH.</p>",
+        "CreateCacheClusterMessage$AuthToken": "<p> <b>Reserved parameter.</b> The password used to access a password protected server.</p> <p>Password constraints:</p> <ul> <li> <p>Must be only printable ASCII characters.</p> </li> <li> <p>Must be at least 16 characters and no more than 128 characters in length.</p> </li> <li> <p>Cannot contain any of the following characters: '/', '\"', or '@'. </p> </li> </ul> <p>For more information, see <a href=\"http://redis.io/commands/AUTH\">AUTH password</a> at http://redis.io/commands/AUTH.</p>",
         "CreateCacheParameterGroupMessage$CacheParameterGroupName": "<p>A user-specified name for the cache parameter group.</p>",
-        "CreateCacheParameterGroupMessage$CacheParameterGroupFamily": "<p>The name of the cache parameter group family that the cache parameter group can be used with.</p> <p>Valid values are: <code>memcached1.4</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> </p>",
+        "CreateCacheParameterGroupMessage$CacheParameterGroupFamily": "<p>The name of the cache parameter group family that the cache parameter group can be used with.</p> <p>Valid values are: <code>memcached1.4</code> | <code>memcached1.5</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> | <code>redis4.0</code> | <code>redis5.0</code> | </p>",
         "CreateCacheParameterGroupMessage$Description": "<p>A user-specified description for the cache parameter group.</p>",
         "CreateCacheSecurityGroupMessage$CacheSecurityGroupName": "<p>A name for the cache security group. This value is stored as a lowercase string.</p> <p>Constraints: Must contain no more than 255 alphanumeric characters. Cannot be the word \"Default\".</p> <p>Example: <code>mysecuritygroup</code> </p>",
         "CreateCacheSecurityGroupMessage$Description": "<p>A description for the cache security group.</p>",
@@ -1278,19 +1498,20 @@
         "CreateReplicationGroupMessage$ReplicationGroupId": "<p>The replication group identifier. This parameter is stored as a lowercase string.</p> <p>Constraints:</p> <ul> <li> <p>A name must contain from 1 to 20 alphanumeric characters or hyphens.</p> </li> <li> <p>The first character must be a letter.</p> </li> <li> <p>A name cannot end with a hyphen or contain two consecutive hyphens.</p> </li> </ul>",
         "CreateReplicationGroupMessage$ReplicationGroupDescription": "<p>A user-created description for the replication group.</p>",
         "CreateReplicationGroupMessage$PrimaryClusterId": "<p>The identifier of the cluster that serves as the primary for this replication group. This cluster must already exist and have a status of <code>available</code>.</p> <p>This parameter is not required if <code>NumCacheClusters</code>, <code>NumNodeGroups</code>, or <code>ReplicasPerNodeGroup</code> is specified.</p>",
-        "CreateReplicationGroupMessage$CacheNodeType": "<p>The compute and memory capacity of the nodes in the node group (shard).</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Notes:</b> </p> <ul> <li> <p>All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).</p> </li> <li> <p>Redis (cluster mode disabled): Redis backup/restore is not supported on T1 and T2 instances. </p> </li> <li> <p>Redis (cluster mode enabled): Backup/restore is not supported on T1 instances.</p> </li> <li> <p>Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.</p> </li> </ul> <p>For a complete listing of node types and specifications, see <a href=\"http://aws.amazon.com/elasticache/details\">Amazon ElastiCache Product Features and Details</a> and either <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Memcached.html#ParameterGroups.Memcached.NodeSpecific\">Cache Node Type-Specific Parameters for Memcached</a> or <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Redis.html#ParameterGroups.Redis.NodeSpecific\">Cache Node Type-Specific Parameters for Redis</a>.</p>",
+        "CreateReplicationGroupMessage$CacheNodeType": "<p>The compute and memory capacity of the nodes in the node group (shard).</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>M5 node types:</b> <code>cache.m5.large</code>, <code>cache.m5.xlarge</code>, <code>cache.m5.2xlarge</code>, <code>cache.m5.4xlarge</code>, <code>cache.m5.12xlarge</code>, <code>cache.m5.24xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R5 node types:</b> <code>cache.r5.large</code>, <code>cache.r5.xlarge</code>, <code>cache.r5.2xlarge</code>, <code>cache.r5.4xlarge</code>, <code>cache.r5.12xlarge</code>, <code>cache.r5.24xlarge</code> </p> <p> <b>R4 node types:</b> <code>cache.r4.large</code>, <code>cache.r4.xlarge</code>, <code>cache.r4.2xlarge</code>, <code>cache.r4.4xlarge</code>, <code>cache.r4.8xlarge</code>, <code>cache.r4.16xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Additional node type info</b> </p> <ul> <li> <p>All current generation instance types are created in Amazon VPC by default.</p> </li> <li> <p>Redis append-only files (AOF) are not supported for T1 or T2 instances.</p> </li> <li> <p>Redis Multi-AZ with automatic failover is not supported on T1 instances.</p> </li> <li> <p>Redis configuration variables <code>appendonly</code> and <code>appendfsync</code> are not supported on Redis version 2.8.22 and later.</p> </li> </ul>",
         "CreateReplicationGroupMessage$Engine": "<p>The name of the cache engine to be used for the clusters in this replication group.</p>",
-        "CreateReplicationGroupMessage$EngineVersion": "<p>The version number of the cache engine to be used for the clusters in this replication group. To view the supported cache engine versions, use the <code>DescribeCacheEngineVersions</code> operation.</p> <p> <b>Important:</b> You can upgrade to a newer engine version (see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/SelectEngine.html#VersionManagement\">Selecting a Cache Engine and Version</a>) in the <i>ElastiCache User Guide</i>, but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing cluster or replication group and create it anew with the earlier engine version. </p>",
-        "CreateReplicationGroupMessage$CacheParameterGroupName": "<p>The name of the parameter group to associate with this replication group. If this argument is omitted, the default cache parameter group for the specified engine is used.</p> <p>If you are running Redis version 3.2.4 or later, only one node group (shard), and want to use a default parameter group, we recommend that you specify the parameter group by name. </p> <ul> <li> <p>To create a Redis (cluster mode disabled) replication group, use <code>CacheParameterGroupName=default.redis3.2</code>.</p> </li> <li> <p>To create a Redis (cluster mode enabled) replication group, use <code>CacheParameterGroupName=default.redis3.2.cluster.on</code>.</p> </li> </ul>",
-        "CreateReplicationGroupMessage$CacheSubnetGroupName": "<p>The name of the cache subnet group to be used for the replication group.</p> <important> <p>If you're going to launch your cluster in an Amazon VPC, you need to create a subnet group before you start creating a cluster. For more information, see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/SubnetGroups.html\">Subnets and Subnet Groups</a>.</p> </important>",
+        "CreateReplicationGroupMessage$EngineVersion": "<p>The version number of the cache engine to be used for the clusters in this replication group. To view the supported cache engine versions, use the <code>DescribeCacheEngineVersions</code> operation.</p> <p> <b>Important:</b> You can upgrade to a newer engine version (see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/SelectEngine.html#VersionManagement\">Selecting a Cache Engine and Version</a>) in the <i>ElastiCache User Guide</i>, but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing cluster or replication group and create it anew with the earlier engine version. </p>",
+        "CreateReplicationGroupMessage$CacheParameterGroupName": "<p>The name of the parameter group to associate with this replication group. If this argument is omitted, the default cache parameter group for the specified engine is used.</p> <note> <p>If you are restoring to an engine version that is different than the original, you must specify the default version of that version. For example, <code>CacheParameterGroupName=default.redis4.0</code>.</p> </note> <p>If you are running Redis version 3.2.4 or later, only one node group (shard), and want to use a default parameter group, we recommend that you specify the parameter group by name. </p> <ul> <li> <p>To create a Redis (cluster mode disabled) replication group, use <code>CacheParameterGroupName=default.redis3.2</code>.</p> </li> <li> <p>To create a Redis (cluster mode enabled) replication group, use <code>CacheParameterGroupName=default.redis3.2.cluster.on</code>.</p> </li> </ul>",
+        "CreateReplicationGroupMessage$CacheSubnetGroupName": "<p>The name of the cache subnet group to be used for the replication group.</p> <important> <p>If you're going to launch your cluster in an Amazon VPC, you need to create a subnet group before you start creating a cluster. For more information, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/SubnetGroups.html\">Subnets and Subnet Groups</a>.</p> </important>",
         "CreateReplicationGroupMessage$SnapshotName": "<p>The name of a snapshot from which to restore data into the new replication group. The snapshot status changes to <code>restoring</code> while the new replication group is being created.</p>",
         "CreateReplicationGroupMessage$PreferredMaintenanceWindow": "<p>Specifies the weekly time range during which maintenance on the cluster is performed. It is specified as a range in the format ddd:hh24:mi-ddd:hh24:mi (24H Clock UTC). The minimum maintenance window is a 60 minute period. Valid values for <code>ddd</code> are:</p> <p>Specifies the weekly time range during which maintenance on the cluster is performed. It is specified as a range in the format ddd:hh24:mi-ddd:hh24:mi (24H Clock UTC). The minimum maintenance window is a 60 minute period.</p> <p>Valid values for <code>ddd</code> are:</p> <ul> <li> <p> <code>sun</code> </p> </li> <li> <p> <code>mon</code> </p> </li> <li> <p> <code>tue</code> </p> </li> <li> <p> <code>wed</code> </p> </li> <li> <p> <code>thu</code> </p> </li> <li> <p> <code>fri</code> </p> </li> <li> <p> <code>sat</code> </p> </li> </ul> <p>Example: <code>sun:23:00-mon:01:30</code> </p>",
         "CreateReplicationGroupMessage$NotificationTopicArn": "<p>The Amazon Resource Name (ARN) of the Amazon Simple Notification Service (SNS) topic to which notifications are sent.</p> <note> <p>The Amazon SNS topic owner must be the same as the cluster owner.</p> </note>",
         "CreateReplicationGroupMessage$SnapshotWindow": "<p>The daily time range (in UTC) during which ElastiCache begins taking a daily snapshot of your node group (shard).</p> <p>Example: <code>05:00-09:00</code> </p> <p>If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.</p>",
-        "CreateReplicationGroupMessage$AuthToken": "<p> <b>Reserved parameter.</b> The password used to access a password protected server.</p> <p>This parameter is valid only if:</p> <ul> <li> <p>The parameter <code>TransitEncryptionEnabled</code> was set to <code>true</code> when the cluster was created.</p> </li> <li> <p>The line <code>requirepass</code> was added to the database configuration file.</p> </li> </ul> <p>Password constraints:</p> <ul> <li> <p>Must be only printable ASCII characters.</p> </li> <li> <p>Must be at least 16 characters and no more than 128 characters in length.</p> </li> <li> <p>Cannot contain any of the following characters: '/', '\"', or '@'. </p> </li> </ul> <p>For more information, see <a href=\"http://redis.io/commands/AUTH\">AUTH password</a> at http://redis.io/commands/AUTH.</p>",
+        "CreateReplicationGroupMessage$AuthToken": "<p> <b>Reserved parameter.</b> The password used to access a password protected server.</p> <p> <code>AuthToken</code> can be specified only on replication groups where <code>TransitEncryptionEnabled</code> is <code>true</code>.</p> <important> <p>For HIPAA compliance, you must specify <code>TransitEncryptionEnabled</code> as <code>true</code>, an <code>AuthToken</code>, and a <code>CacheSubnetGroup</code>.</p> </important> <p>Password constraints:</p> <ul> <li> <p>Must be only printable ASCII characters.</p> </li> <li> <p>Must be at least 16 characters and no more than 128 characters in length.</p> </li> <li> <p>Cannot contain any of the following characters: '/', '\"', or '@'. </p> </li> </ul> <p>For more information, see <a href=\"http://redis.io/commands/AUTH\">AUTH password</a> at http://redis.io/commands/AUTH.</p>",
         "CreateSnapshotMessage$ReplicationGroupId": "<p>The identifier of an existing replication group. The snapshot is created from this replication group.</p>",
         "CreateSnapshotMessage$CacheClusterId": "<p>The identifier of an existing cluster. The snapshot is created from this cluster.</p>",
         "CreateSnapshotMessage$SnapshotName": "<p>A name for the snapshot being created.</p>",
+        "DecreaseReplicaCountMessage$ReplicationGroupId": "<p>The id of the replication group from which you want to remove replica nodes.</p>",
         "DeleteCacheClusterMessage$CacheClusterId": "<p>The cluster identifier for the cluster to be deleted. This parameter is not case sensitive.</p>",
         "DeleteCacheClusterMessage$FinalSnapshotIdentifier": "<p>The user-supplied name of a final cluster snapshot. This is the unique name that identifies the snapshot. ElastiCache creates the snapshot, and then deletes the cluster immediately afterward.</p>",
         "DeleteCacheParameterGroupMessage$CacheParameterGroupName": "<p>The name of the cache parameter group to delete.</p> <note> <p>The specified cache security group must not be associated with any clusters.</p> </note>",
@@ -1303,7 +1524,7 @@
         "DescribeCacheClustersMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
         "DescribeCacheEngineVersionsMessage$Engine": "<p>The cache engine to return. Valid values: <code>memcached</code> | <code>redis</code> </p>",
         "DescribeCacheEngineVersionsMessage$EngineVersion": "<p>The cache engine version to return.</p> <p>Example: <code>1.4.14</code> </p>",
-        "DescribeCacheEngineVersionsMessage$CacheParameterGroupFamily": "<p>The name of a specific cache parameter group family to return details for.</p> <p>Valid values are: <code>memcached1.4</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> </p> <p>Constraints:</p> <ul> <li> <p>Must be 1 to 255 alphanumeric characters</p> </li> <li> <p>First character must be a letter</p> </li> <li> <p>Cannot end with a hyphen or contain two consecutive hyphens</p> </li> </ul>",
+        "DescribeCacheEngineVersionsMessage$CacheParameterGroupFamily": "<p>The name of a specific cache parameter group family to return details for.</p> <p>Valid values are: <code>memcached1.4</code> | <code>memcached1.5</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> | <code>redis4.0</code> | <code>redis5.0</code> | </p> <p>Constraints:</p> <ul> <li> <p>Must be 1 to 255 alphanumeric characters</p> </li> <li> <p>First character must be a letter</p> </li> <li> <p>Cannot end with a hyphen or contain two consecutive hyphens</p> </li> </ul>",
         "DescribeCacheEngineVersionsMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
         "DescribeCacheParameterGroupsMessage$CacheParameterGroupName": "<p>The name of a specific cache parameter group to return details for.</p>",
         "DescribeCacheParameterGroupsMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
@@ -1314,7 +1535,7 @@
         "DescribeCacheSecurityGroupsMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
         "DescribeCacheSubnetGroupsMessage$CacheSubnetGroupName": "<p>The name of the cache subnet group to return details for.</p>",
         "DescribeCacheSubnetGroupsMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
-        "DescribeEngineDefaultParametersMessage$CacheParameterGroupFamily": "<p>The name of the cache parameter group family.</p> <p>Valid values are: <code>memcached1.4</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> </p>",
+        "DescribeEngineDefaultParametersMessage$CacheParameterGroupFamily": "<p>The name of the cache parameter group family.</p> <p>Valid values are: <code>memcached1.4</code> | <code>memcached1.5</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> | <code>redis4.0</code> | <code>redis5.0</code> | </p>",
         "DescribeEngineDefaultParametersMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
         "DescribeEventsMessage$SourceIdentifier": "<p>The identifier of the event source for which events are returned. If not specified, all sources are included in the response.</p>",
         "DescribeEventsMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
@@ -1322,42 +1543,47 @@
         "DescribeReplicationGroupsMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
         "DescribeReservedCacheNodesMessage$ReservedCacheNodeId": "<p>The reserved cache node identifier filter value. Use this parameter to show only the reservation that matches the specified reservation ID.</p>",
         "DescribeReservedCacheNodesMessage$ReservedCacheNodesOfferingId": "<p>The offering identifier filter value. Use this parameter to show only purchased reservations matching the specified offering identifier.</p>",
-        "DescribeReservedCacheNodesMessage$CacheNodeType": "<p>The cache node type filter value. Use this parameter to show only those reservations matching the specified cache node type.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Notes:</b> </p> <ul> <li> <p>All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).</p> </li> <li> <p>Redis (cluster mode disabled): Redis backup/restore is not supported on T1 and T2 instances. </p> </li> <li> <p>Redis (cluster mode enabled): Backup/restore is not supported on T1 instances.</p> </li> <li> <p>Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.</p> </li> </ul> <p>For a complete listing of node types and specifications, see <a href=\"http://aws.amazon.com/elasticache/details\">Amazon ElastiCache Product Features and Details</a> and either <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Memcached.html#ParameterGroups.Memcached.NodeSpecific\">Cache Node Type-Specific Parameters for Memcached</a> or <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Redis.html#ParameterGroups.Redis.NodeSpecific\">Cache Node Type-Specific Parameters for Redis</a>.</p>",
+        "DescribeReservedCacheNodesMessage$CacheNodeType": "<p>The cache node type filter value. Use this parameter to show only those reservations matching the specified cache node type.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>M5 node types:</b> <code>cache.m5.large</code>, <code>cache.m5.xlarge</code>, <code>cache.m5.2xlarge</code>, <code>cache.m5.4xlarge</code>, <code>cache.m5.12xlarge</code>, <code>cache.m5.24xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R5 node types:</b> <code>cache.r5.large</code>, <code>cache.r5.xlarge</code>, <code>cache.r5.2xlarge</code>, <code>cache.r5.4xlarge</code>, <code>cache.r5.12xlarge</code>, <code>cache.r5.24xlarge</code> </p> <p> <b>R4 node types:</b> <code>cache.r4.large</code>, <code>cache.r4.xlarge</code>, <code>cache.r4.2xlarge</code>, <code>cache.r4.4xlarge</code>, <code>cache.r4.8xlarge</code>, <code>cache.r4.16xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Additional node type info</b> </p> <ul> <li> <p>All current generation instance types are created in Amazon VPC by default.</p> </li> <li> <p>Redis append-only files (AOF) are not supported for T1 or T2 instances.</p> </li> <li> <p>Redis Multi-AZ with automatic failover is not supported on T1 instances.</p> </li> <li> <p>Redis configuration variables <code>appendonly</code> and <code>appendfsync</code> are not supported on Redis version 2.8.22 and later.</p> </li> </ul>",
         "DescribeReservedCacheNodesMessage$Duration": "<p>The duration filter value, specified in years or seconds. Use this parameter to show only reservations for this duration.</p> <p>Valid Values: <code>1 | 3 | 31536000 | 94608000</code> </p>",
         "DescribeReservedCacheNodesMessage$ProductDescription": "<p>The product description filter value. Use this parameter to show only those reservations matching the specified product description.</p>",
         "DescribeReservedCacheNodesMessage$OfferingType": "<p>The offering type filter value. Use this parameter to show only the available offerings matching the specified offering type.</p> <p>Valid values: <code>\"Light Utilization\"|\"Medium Utilization\"|\"Heavy Utilization\"</code> </p>",
         "DescribeReservedCacheNodesMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
         "DescribeReservedCacheNodesOfferingsMessage$ReservedCacheNodesOfferingId": "<p>The offering identifier filter value. Use this parameter to show only the available offering that matches the specified reservation identifier.</p> <p>Example: <code>438012d3-4052-4cc7-b2e3-8d3372e0e706</code> </p>",
-        "DescribeReservedCacheNodesOfferingsMessage$CacheNodeType": "<p>The cache node type filter value. Use this parameter to show only the available offerings matching the specified cache node type.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Notes:</b> </p> <ul> <li> <p>All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).</p> </li> <li> <p>Redis (cluster mode disabled): Redis backup/restore is not supported on T1 and T2 instances. </p> </li> <li> <p>Redis (cluster mode enabled): Backup/restore is not supported on T1 instances.</p> </li> <li> <p>Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.</p> </li> </ul> <p>For a complete listing of node types and specifications, see <a href=\"http://aws.amazon.com/elasticache/details\">Amazon ElastiCache Product Features and Details</a> and either <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Memcached.html#ParameterGroups.Memcached.NodeSpecific\">Cache Node Type-Specific Parameters for Memcached</a> or <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Redis.html#ParameterGroups.Redis.NodeSpecific\">Cache Node Type-Specific Parameters for Redis</a>.</p>",
+        "DescribeReservedCacheNodesOfferingsMessage$CacheNodeType": "<p>The cache node type filter value. Use this parameter to show only the available offerings matching the specified cache node type.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>M5 node types:</b> <code>cache.m5.large</code>, <code>cache.m5.xlarge</code>, <code>cache.m5.2xlarge</code>, <code>cache.m5.4xlarge</code>, <code>cache.m5.12xlarge</code>, <code>cache.m5.24xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R5 node types:</b> <code>cache.r5.large</code>, <code>cache.r5.xlarge</code>, <code>cache.r5.2xlarge</code>, <code>cache.r5.4xlarge</code>, <code>cache.r5.12xlarge</code>, <code>cache.r5.24xlarge</code> </p> <p> <b>R4 node types:</b> <code>cache.r4.large</code>, <code>cache.r4.xlarge</code>, <code>cache.r4.2xlarge</code>, <code>cache.r4.4xlarge</code>, <code>cache.r4.8xlarge</code>, <code>cache.r4.16xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Additional node type info</b> </p> <ul> <li> <p>All current generation instance types are created in Amazon VPC by default.</p> </li> <li> <p>Redis append-only files (AOF) are not supported for T1 or T2 instances.</p> </li> <li> <p>Redis Multi-AZ with automatic failover is not supported on T1 instances.</p> </li> <li> <p>Redis configuration variables <code>appendonly</code> and <code>appendfsync</code> are not supported on Redis version 2.8.22 and later.</p> </li> </ul>",
         "DescribeReservedCacheNodesOfferingsMessage$Duration": "<p>Duration filter value, specified in years or seconds. Use this parameter to show only reservations for a given duration.</p> <p>Valid Values: <code>1 | 3 | 31536000 | 94608000</code> </p>",
         "DescribeReservedCacheNodesOfferingsMessage$ProductDescription": "<p>The product description filter value. Use this parameter to show only the available offerings matching the specified product description.</p>",
         "DescribeReservedCacheNodesOfferingsMessage$OfferingType": "<p>The offering type filter value. Use this parameter to show only the available offerings matching the specified offering type.</p> <p>Valid Values: <code>\"Light Utilization\"|\"Medium Utilization\"|\"Heavy Utilization\"</code> </p>",
         "DescribeReservedCacheNodesOfferingsMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
+        "DescribeServiceUpdatesMessage$ServiceUpdateName": "<p>The unique ID of the service update</p>",
+        "DescribeServiceUpdatesMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
         "DescribeSnapshotsListMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
         "DescribeSnapshotsMessage$ReplicationGroupId": "<p>A user-supplied replication group identifier. If this parameter is specified, only snapshots associated with that specific replication group are described.</p>",
         "DescribeSnapshotsMessage$CacheClusterId": "<p>A user-supplied cluster identifier. If this parameter is specified, only snapshots associated with that specific cluster are described.</p>",
         "DescribeSnapshotsMessage$SnapshotName": "<p>A user-supplied name of the snapshot. If this parameter is specified, only this snapshot are described.</p>",
         "DescribeSnapshotsMessage$SnapshotSource": "<p>If set to <code>system</code>, the output shows snapshots that were automatically created by ElastiCache. If set to <code>user</code> the output shows snapshots that were manually created. If omitted, the output shows both automatically and manually created snapshots.</p>",
         "DescribeSnapshotsMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
+        "DescribeUpdateActionsMessage$ServiceUpdateName": "<p>The unique ID of the service update</p>",
+        "DescribeUpdateActionsMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
         "EC2SecurityGroup$Status": "<p>The status of the Amazon EC2 security group.</p>",
         "EC2SecurityGroup$EC2SecurityGroupName": "<p>The name of the Amazon EC2 security group.</p>",
         "EC2SecurityGroup$EC2SecurityGroupOwnerId": "<p>The AWS account ID of the Amazon EC2 security group owner.</p>",
         "Endpoint$Address": "<p>The DNS hostname of the cache node.</p>",
-        "EngineDefaults$CacheParameterGroupFamily": "<p>Specifies the name of the cache parameter group family to which the engine default parameters apply.</p> <p>Valid values are: <code>memcached1.4</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> </p>",
+        "EngineDefaults$CacheParameterGroupFamily": "<p>Specifies the name of the cache parameter group family to which the engine default parameters apply.</p> <p>Valid values are: <code>memcached1.4</code> | <code>memcached1.5</code> | <code>redis2.6</code> | <code>redis2.8</code> | <code>redis3.2</code> | <code>redis4.0</code> | <code>redis5.0</code> | </p>",
         "EngineDefaults$Marker": "<p>Provides an identifier to allow retrieval of paginated results.</p>",
         "Event$SourceIdentifier": "<p>The identifier for the source of the event. For example, if the event occurred at the cluster level, the identifier would be the name of the cluster.</p>",
         "Event$Message": "<p>The text of the event.</p>",
         "EventsMessage$Marker": "<p>Provides an identifier to allow retrieval of paginated results.</p>",
+        "IncreaseReplicaCountMessage$ReplicationGroupId": "<p>The id of the replication group to which you want to add replica nodes.</p>",
         "KeyList$member": null,
         "ListAllowedNodeTypeModificationsMessage$CacheClusterId": "<p>The name of the cluster you want to scale up to a larger node instanced type. ElastiCache uses the cluster id to identify the current node type of this cluster and from that to create a list of node types you can scale up to.</p> <important> <p>You must provide a value for either the <code>CacheClusterId</code> or the <code>ReplicationGroupId</code>.</p> </important>",
         "ListAllowedNodeTypeModificationsMessage$ReplicationGroupId": "<p>The name of the replication group want to scale up to a larger node type. ElastiCache uses the replication group id to identify the current node type being used by this replication group, and from that to create a list of node types you can scale up to.</p> <important> <p>You must provide a value for either the <code>CacheClusterId</code> or the <code>ReplicationGroupId</code>.</p> </important>",
-        "ListTagsForResourceMessage$ResourceName": "<p>The Amazon Resource Name (ARN) of the resource for which you want the list of tags, for example <code>arn:aws:elasticache:us-west-2:0123456789:cluster:myCluster</code> or <code>arn:aws:elasticache:us-west-2:0123456789:snapshot:mySnapshot</code>.</p> <p>For more information about ARNs, see <a href=\"http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html\">Amazon Resource Names (ARNs) and AWS Service Namespaces</a>.</p>",
+        "ListTagsForResourceMessage$ResourceName": "<p>The Amazon Resource Name (ARN) of the resource for which you want the list of tags, for example <code>arn:aws:elasticache:us-west-2:0123456789:cluster:myCluster</code> or <code>arn:aws:elasticache:us-west-2:0123456789:snapshot:mySnapshot</code>.</p> <p>For more information about ARNs, see <a href=\"https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html\">Amazon Resource Names (ARNs) and AWS Service Namespaces</a>.</p>",
         "ModifyCacheClusterMessage$CacheClusterId": "<p>The cluster identifier. This value is stored as a lowercase string.</p>",
         "ModifyCacheClusterMessage$PreferredMaintenanceWindow": "<p>Specifies the weekly time range during which maintenance on the cluster is performed. It is specified as a range in the format ddd:hh24:mi-ddd:hh24:mi (24H Clock UTC). The minimum maintenance window is a 60 minute period.</p> <p>Valid values for <code>ddd</code> are:</p> <ul> <li> <p> <code>sun</code> </p> </li> <li> <p> <code>mon</code> </p> </li> <li> <p> <code>tue</code> </p> </li> <li> <p> <code>wed</code> </p> </li> <li> <p> <code>thu</code> </p> </li> <li> <p> <code>fri</code> </p> </li> <li> <p> <code>sat</code> </p> </li> </ul> <p>Example: <code>sun:23:00-mon:01:30</code> </p>",
         "ModifyCacheClusterMessage$NotificationTopicArn": "<p>The Amazon Resource Name (ARN) of the Amazon SNS topic to which notifications are sent.</p> <note> <p>The Amazon SNS topic owner must be same as the cluster owner.</p> </note>",
         "ModifyCacheClusterMessage$CacheParameterGroupName": "<p>The name of the cache parameter group to apply to this cluster. This change is asynchronously applied as soon as possible for parameters when the <code>ApplyImmediately</code> parameter is specified as <code>true</code> for this request.</p>",
         "ModifyCacheClusterMessage$NotificationTopicStatus": "<p>The status of the Amazon SNS notification topic. Notifications are sent only if the status is <code>active</code>.</p> <p>Valid values: <code>active</code> | <code>inactive</code> </p>",
-        "ModifyCacheClusterMessage$EngineVersion": "<p>The upgraded version of the cache engine to be run on the cache nodes.</p> <p> <b>Important:</b> You can upgrade to a newer engine version (see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/SelectEngine.html#VersionManagement\">Selecting a Cache Engine and Version</a>), but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing cluster and create it anew with the earlier engine version. </p>",
+        "ModifyCacheClusterMessage$EngineVersion": "<p>The upgraded version of the cache engine to be run on the cache nodes.</p> <p> <b>Important:</b> You can upgrade to a newer engine version (see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/SelectEngine.html#VersionManagement\">Selecting a Cache Engine and Version</a>), but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing cluster and create it anew with the earlier engine version. </p>",
         "ModifyCacheClusterMessage$SnapshotWindow": "<p>The daily time range (in UTC) during which ElastiCache begins taking a daily snapshot of your cluster. </p>",
         "ModifyCacheClusterMessage$CacheNodeType": "<p>A valid cache node type that you want to scale this cluster up to.</p>",
         "ModifyCacheParameterGroupMessage$CacheParameterGroupName": "<p>The name of the cache parameter group to modify.</p>",
@@ -1371,12 +1597,12 @@
         "ModifyReplicationGroupMessage$NotificationTopicArn": "<p>The Amazon Resource Name (ARN) of the Amazon SNS topic to which notifications are sent.</p> <note> <p>The Amazon SNS topic owner must be same as the replication group owner. </p> </note>",
         "ModifyReplicationGroupMessage$CacheParameterGroupName": "<p>The name of the cache parameter group to apply to all of the clusters in this replication group. This change is asynchronously applied as soon as possible for parameters when the <code>ApplyImmediately</code> parameter is specified as <code>true</code> for this request.</p>",
         "ModifyReplicationGroupMessage$NotificationTopicStatus": "<p>The status of the Amazon SNS notification topic for the replication group. Notifications are sent only if the status is <code>active</code>.</p> <p>Valid values: <code>active</code> | <code>inactive</code> </p>",
-        "ModifyReplicationGroupMessage$EngineVersion": "<p>The upgraded version of the cache engine to be run on the clusters in the replication group.</p> <p> <b>Important:</b> You can upgrade to a newer engine version (see <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/SelectEngine.html#VersionManagement\">Selecting a Cache Engine and Version</a>), but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing replication group and create it anew with the earlier engine version. </p>",
+        "ModifyReplicationGroupMessage$EngineVersion": "<p>The upgraded version of the cache engine to be run on the clusters in the replication group.</p> <p> <b>Important:</b> You can upgrade to a newer engine version (see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/SelectEngine.html#VersionManagement\">Selecting a Cache Engine and Version</a>), but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing replication group and create it anew with the earlier engine version. </p>",
         "ModifyReplicationGroupMessage$SnapshotWindow": "<p>The daily time range (in UTC) during which ElastiCache begins taking a daily snapshot of the node group (shard) specified by <code>SnapshottingClusterId</code>.</p> <p>Example: <code>05:00-09:00</code> </p> <p>If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.</p>",
         "ModifyReplicationGroupMessage$CacheNodeType": "<p>A valid cache node type that you want to scale this replication group to.</p>",
-        "ModifyReplicationGroupMessage$NodeGroupId": "<p>The name of the Node Group (called shard in the console).</p>",
+        "ModifyReplicationGroupMessage$NodeGroupId": "<p>Deprecated. This parameter is not used.</p>",
         "ModifyReplicationGroupShardConfigurationMessage$ReplicationGroupId": "<p>The name of the Redis (cluster mode enabled) cluster (replication group) on which the shards are to be configured.</p>",
-        "NodeGroup$NodeGroupId": "<p>The identifier for the node group (shard). A Redis (cluster mode disabled) replication group contains only 1 node group; therefore, the node group ID is 0001. A Redis (cluster mode enabled) replication group contains 1 to 15 node groups numbered 0001 to 0015. </p>",
+        "NodeGroup$NodeGroupId": "<p>The identifier for the node group (shard). A Redis (cluster mode disabled) replication group contains only 1 node group; therefore, the node group ID is 0001. A Redis (cluster mode enabled) replication group contains 1 to 15 node groups numbered 0001 to 0015. Optionally, the user can provide the id for a node group. </p>",
         "NodeGroup$Status": "<p>The current state of this replication group - <code>creating</code>, <code>available</code>, etc.</p>",
         "NodeGroup$Slots": "<p>The keyspace for this node group (shard).</p>",
         "NodeGroupConfiguration$Slots": "<p>A string that specifies the keyspace for a particular node group. Keyspaces range from 0 to 16,383. The string is in the format <code>startkey-endkey</code>.</p> <p>Example: <code>\"0-3999\"</code> </p>",
@@ -1384,8 +1610,10 @@
         "NodeGroupMember$CacheClusterId": "<p>The ID of the cluster to which the node belongs.</p>",
         "NodeGroupMember$CacheNodeId": "<p>The ID of the node within its cluster. A node ID is a numeric identifier (0001, 0002, etc.).</p>",
         "NodeGroupMember$PreferredAvailabilityZone": "<p>The name of the Availability Zone in which the node is located.</p>",
-        "NodeGroupMember$CurrentRole": "<p>The role that is currently assigned to the node - <code>primary</code> or <code>replica</code>.</p>",
-        "NodeGroupsToRemoveList$member": null,
+        "NodeGroupMember$CurrentRole": "<p>The role that is currently assigned to the node - <code>primary</code> or <code>replica</code>. This member is only applicable for Redis (cluster mode disabled) replication groups.</p>",
+        "NodeGroupMemberUpdateStatus$CacheClusterId": "<p>The cache cluster ID</p>",
+        "NodeGroupMemberUpdateStatus$CacheNodeId": "<p>The node ID of the cache cluster</p>",
+        "NodeGroupUpdateStatus$NodeGroupId": "<p>The ID of the node group</p>",
         "NodeSnapshot$CacheClusterId": "<p>A unique identifier for the source cluster.</p>",
         "NodeSnapshot$NodeGroupId": "<p>A unique identifier for the source node group (shard).</p>",
         "NodeSnapshot$CacheNodeId": "<p>The cache node identifier for the node in the source cluster.</p>",
@@ -1405,28 +1633,33 @@
         "PendingModifiedValues$EngineVersion": "<p>The new cache engine version that the cluster runs.</p>",
         "PendingModifiedValues$CacheNodeType": "<p>The cache node type that this cluster or replication group is scaled to.</p>",
         "PreferredAvailabilityZoneList$member": null,
+        "ProcessedUpdateAction$ReplicationGroupId": "<p>The ID of the replication group</p>",
+        "ProcessedUpdateAction$ServiceUpdateName": "<p>The unique ID of the service update</p>",
         "PurchaseReservedCacheNodesOfferingMessage$ReservedCacheNodesOfferingId": "<p>The ID of the reserved cache node offering to purchase.</p> <p>Example: <code>438012d3-4052-4cc7-b2e3-8d3372e0e706</code> </p>",
         "PurchaseReservedCacheNodesOfferingMessage$ReservedCacheNodeId": "<p>A customer-specified identifier to track this reservation.</p> <note> <p>The Reserved Cache Node ID is an unique customer-specified identifier to track this reservation. If this parameter is not specified, ElastiCache automatically generates an identifier for the reservation.</p> </note> <p>Example: myreservationID</p>",
         "RebootCacheClusterMessage$CacheClusterId": "<p>The cluster identifier. This parameter is stored as a lowercase string.</p>",
         "RecurringCharge$RecurringChargeFrequency": "<p>The frequency of the recurring charge.</p>",
-        "RemoveTagsFromResourceMessage$ResourceName": "<p>The Amazon Resource Name (ARN) of the resource from which you want the tags removed, for example <code>arn:aws:elasticache:us-west-2:0123456789:cluster:myCluster</code> or <code>arn:aws:elasticache:us-west-2:0123456789:snapshot:mySnapshot</code>.</p> <p>For more information about ARNs, see <a href=\"http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html\">Amazon Resource Names (ARNs) and AWS Service Namespaces</a>.</p>",
+        "RemoveReplicasList$member": null,
+        "RemoveTagsFromResourceMessage$ResourceName": "<p>The Amazon Resource Name (ARN) of the resource from which you want the tags removed, for example <code>arn:aws:elasticache:us-west-2:0123456789:cluster:myCluster</code> or <code>arn:aws:elasticache:us-west-2:0123456789:snapshot:mySnapshot</code>.</p> <p>For more information about ARNs, see <a href=\"https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html\">Amazon Resource Names (ARNs) and AWS Service Namespaces</a>.</p>",
         "ReplicationGroup$ReplicationGroupId": "<p>The identifier for the replication group.</p>",
         "ReplicationGroup$Description": "<p>The user supplied description of the replication group.</p>",
         "ReplicationGroup$Status": "<p>The current state of this replication group - <code>creating</code>, <code>available</code>, <code>modifying</code>, <code>deleting</code>, <code>create-failed</code>, <code>snapshotting</code>.</p>",
         "ReplicationGroup$SnapshottingClusterId": "<p>The cluster ID that is used as the daily snapshot source for the replication group.</p>",
         "ReplicationGroup$SnapshotWindow": "<p>The daily time range (in UTC) during which ElastiCache begins taking a daily snapshot of your node group (shard).</p> <p>Example: <code>05:00-09:00</code> </p> <p>If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.</p> <note> <p>This parameter is only valid if the <code>Engine</code> parameter is <code>redis</code>.</p> </note>",
         "ReplicationGroup$CacheNodeType": "<p>The name of the compute and memory capacity node type for each node in the replication group.</p>",
+        "ReplicationGroupIdList$member": null,
         "ReplicationGroupMessage$Marker": "<p>Provides an identifier to allow retrieval of paginated results.</p>",
         "ReplicationGroupPendingModifiedValues$PrimaryClusterId": "<p>The primary cluster ID that is applied immediately (if <code>--apply-immediately</code> was specified), or during the next maintenance window.</p>",
         "ReservedCacheNode$ReservedCacheNodeId": "<p>The unique identifier for the reservation.</p>",
         "ReservedCacheNode$ReservedCacheNodesOfferingId": "<p>The offering identifier.</p>",
-        "ReservedCacheNode$CacheNodeType": "<p>The cache node type for the reserved cache nodes.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Notes:</b> </p> <ul> <li> <p>All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).</p> </li> <li> <p>Redis (cluster mode disabled): Redis backup/restore is not supported on T1 and T2 instances. </p> </li> <li> <p>Redis (cluster mode enabled): Backup/restore is not supported on T1 instances.</p> </li> <li> <p>Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.</p> </li> </ul> <p>For a complete listing of node types and specifications, see <a href=\"http://aws.amazon.com/elasticache/details\">Amazon ElastiCache Product Features and Details</a> and either <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Memcached.html#ParameterGroups.Memcached.NodeSpecific\">Cache Node Type-Specific Parameters for Memcached</a> or <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Redis.html#ParameterGroups.Redis.NodeSpecific\">Cache Node Type-Specific Parameters for Redis</a>.</p>",
+        "ReservedCacheNode$CacheNodeType": "<p>The cache node type for the reserved cache nodes.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>M5 node types:</b> <code>cache.m5.large</code>, <code>cache.m5.xlarge</code>, <code>cache.m5.2xlarge</code>, <code>cache.m5.4xlarge</code>, <code>cache.m5.12xlarge</code>, <code>cache.m5.24xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R5 node types:</b> <code>cache.r5.large</code>, <code>cache.r5.xlarge</code>, <code>cache.r5.2xlarge</code>, <code>cache.r5.4xlarge</code>, <code>cache.r5.12xlarge</code>, <code>cache.r5.24xlarge</code> </p> <p> <b>R4 node types:</b> <code>cache.r4.large</code>, <code>cache.r4.xlarge</code>, <code>cache.r4.2xlarge</code>, <code>cache.r4.4xlarge</code>, <code>cache.r4.8xlarge</code>, <code>cache.r4.16xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Additional node type info</b> </p> <ul> <li> <p>All current generation instance types are created in Amazon VPC by default.</p> </li> <li> <p>Redis append-only files (AOF) are not supported for T1 or T2 instances.</p> </li> <li> <p>Redis Multi-AZ with automatic failover is not supported on T1 instances.</p> </li> <li> <p>Redis configuration variables <code>appendonly</code> and <code>appendfsync</code> are not supported on Redis version 2.8.22 and later.</p> </li> </ul>",
         "ReservedCacheNode$ProductDescription": "<p>The description of the reserved cache node.</p>",
         "ReservedCacheNode$OfferingType": "<p>The offering type of this reserved cache node.</p>",
         "ReservedCacheNode$State": "<p>The state of the reserved cache node.</p>",
+        "ReservedCacheNode$ReservationARN": "<p>The Amazon Resource Name (ARN) of the reserved cache node.</p> <p>Example: <code>arn:aws:elasticache:us-east-1:123456789012:reserved-instance:ri-2017-03-27-08-33-25-582</code> </p>",
         "ReservedCacheNodeMessage$Marker": "<p>Provides an identifier to allow retrieval of paginated results.</p>",
         "ReservedCacheNodesOffering$ReservedCacheNodesOfferingId": "<p>A unique identifier for the reserved cache node offering.</p>",
-        "ReservedCacheNodesOffering$CacheNodeType": "<p>The cache node type for the reserved cache node.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Notes:</b> </p> <ul> <li> <p>All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).</p> </li> <li> <p>Redis (cluster mode disabled): Redis backup/restore is not supported on T1 and T2 instances. </p> </li> <li> <p>Redis (cluster mode enabled): Backup/restore is not supported on T1 instances.</p> </li> <li> <p>Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.</p> </li> </ul> <p>For a complete listing of node types and specifications, see <a href=\"http://aws.amazon.com/elasticache/details\">Amazon ElastiCache Product Features and Details</a> and either <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Memcached.html#ParameterGroups.Memcached.NodeSpecific\">Cache Node Type-Specific Parameters for Memcached</a> or <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Redis.html#ParameterGroups.Redis.NodeSpecific\">Cache Node Type-Specific Parameters for Redis</a>.</p>",
+        "ReservedCacheNodesOffering$CacheNodeType": "<p>The cache node type for the reserved cache node.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>M5 node types:</b> <code>cache.m5.large</code>, <code>cache.m5.xlarge</code>, <code>cache.m5.2xlarge</code>, <code>cache.m5.4xlarge</code>, <code>cache.m5.12xlarge</code>, <code>cache.m5.24xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R5 node types:</b> <code>cache.r5.large</code>, <code>cache.r5.xlarge</code>, <code>cache.r5.2xlarge</code>, <code>cache.r5.4xlarge</code>, <code>cache.r5.12xlarge</code>, <code>cache.r5.24xlarge</code> </p> <p> <b>R4 node types:</b> <code>cache.r4.large</code>, <code>cache.r4.xlarge</code>, <code>cache.r4.2xlarge</code>, <code>cache.r4.4xlarge</code>, <code>cache.r4.8xlarge</code>, <code>cache.r4.16xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Additional node type info</b> </p> <ul> <li> <p>All current generation instance types are created in Amazon VPC by default.</p> </li> <li> <p>Redis append-only files (AOF) are not supported for T1 or T2 instances.</p> </li> <li> <p>Redis Multi-AZ with automatic failover is not supported on T1 instances.</p> </li> <li> <p>Redis configuration variables <code>appendonly</code> and <code>appendfsync</code> are not supported on Redis version 2.8.22 and later.</p> </li> </ul>",
         "ReservedCacheNodesOffering$ProductDescription": "<p>The cache engine used by the offering.</p>",
         "ReservedCacheNodesOffering$OfferingType": "<p>The offering type.</p>",
         "ReservedCacheNodesOfferingMessage$Marker": "<p>Provides an identifier to allow retrieval of paginated results.</p>",
@@ -1437,13 +1670,19 @@
         "SecurityGroupIdsList$member": null,
         "SecurityGroupMembership$SecurityGroupId": "<p>The identifier of the cache security group.</p>",
         "SecurityGroupMembership$Status": "<p>The status of the cache security group membership. The status changes whenever a cache security group is modified, or when the cache security groups assigned to a cluster are modified.</p>",
+        "ServiceUpdate$ServiceUpdateName": "<p>The unique ID of the service update</p>",
+        "ServiceUpdate$ServiceUpdateDescription": "<p>Provides details of the service update</p>",
+        "ServiceUpdate$Engine": "<p>The Redis engine to which the service update applies</p>",
+        "ServiceUpdate$EngineVersion": "<p>The Redis engine version to which the service update applies</p>",
+        "ServiceUpdate$EstimatedUpdateTime": "<p>The estimated length of time the service update will take</p>",
+        "ServiceUpdatesMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>",
         "Snapshot$SnapshotName": "<p>The name of a snapshot. For an automatic snapshot, the name is system-generated. For a manual snapshot, this is the user-provided name.</p>",
         "Snapshot$ReplicationGroupId": "<p>The unique identifier of the source replication group.</p>",
         "Snapshot$ReplicationGroupDescription": "<p>A description of the source replication group.</p>",
         "Snapshot$CacheClusterId": "<p>The user-supplied identifier of the source cluster.</p>",
         "Snapshot$SnapshotStatus": "<p>The status of the snapshot. Valid values: <code>creating</code> | <code>available</code> | <code>restoring</code> | <code>copying</code> | <code>deleting</code>.</p>",
         "Snapshot$SnapshotSource": "<p>Indicates whether the snapshot is from an automatic backup (<code>automated</code>) or was created manually (<code>manual</code>).</p>",
-        "Snapshot$CacheNodeType": "<p>The name of the compute and memory capacity node type for the source cluster.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Notes:</b> </p> <ul> <li> <p>All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).</p> </li> <li> <p>Redis (cluster mode disabled): Redis backup/restore is not supported on T1 and T2 instances. </p> </li> <li> <p>Redis (cluster mode enabled): Backup/restore is not supported on T1 instances.</p> </li> <li> <p>Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.</p> </li> </ul> <p>For a complete listing of node types and specifications, see <a href=\"http://aws.amazon.com/elasticache/details\">Amazon ElastiCache Product Features and Details</a> and either <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Memcached.html#ParameterGroups.Memcached.NodeSpecific\">Cache Node Type-Specific Parameters for Memcached</a> or <a href=\"http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheParameterGroups.Redis.html#ParameterGroups.Redis.NodeSpecific\">Cache Node Type-Specific Parameters for Redis</a>.</p>",
+        "Snapshot$CacheNodeType": "<p>The name of the compute and memory capacity node type for the source cluster.</p> <p>The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.</p> <ul> <li> <p>General purpose:</p> <ul> <li> <p>Current generation: </p> <p> <b>M5 node types:</b> <code>cache.m5.large</code>, <code>cache.m5.xlarge</code>, <code>cache.m5.2xlarge</code>, <code>cache.m5.4xlarge</code>, <code>cache.m5.12xlarge</code>, <code>cache.m5.24xlarge</code> </p> <p> <b>M4 node types:</b> <code>cache.m4.large</code>, <code>cache.m4.xlarge</code>, <code>cache.m4.2xlarge</code>, <code>cache.m4.4xlarge</code>, <code>cache.m4.10xlarge</code> </p> <p> <b>T2 node types:</b> <code>cache.t2.micro</code>, <code>cache.t2.small</code>, <code>cache.t2.medium</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>T1 node types:</b> <code>cache.t1.micro</code> </p> <p> <b>M1 node types:</b> <code>cache.m1.small</code>, <code>cache.m1.medium</code>, <code>cache.m1.large</code>, <code>cache.m1.xlarge</code> </p> <p> <b>M3 node types:</b> <code>cache.m3.medium</code>, <code>cache.m3.large</code>, <code>cache.m3.xlarge</code>, <code>cache.m3.2xlarge</code> </p> </li> </ul> </li> <li> <p>Compute optimized:</p> <ul> <li> <p>Previous generation: (not recommended)</p> <p> <b>C1 node types:</b> <code>cache.c1.xlarge</code> </p> </li> </ul> </li> <li> <p>Memory optimized:</p> <ul> <li> <p>Current generation: </p> <p> <b>R5 node types:</b> <code>cache.r5.large</code>, <code>cache.r5.xlarge</code>, <code>cache.r5.2xlarge</code>, <code>cache.r5.4xlarge</code>, <code>cache.r5.12xlarge</code>, <code>cache.r5.24xlarge</code> </p> <p> <b>R4 node types:</b> <code>cache.r4.large</code>, <code>cache.r4.xlarge</code>, <code>cache.r4.2xlarge</code>, <code>cache.r4.4xlarge</code>, <code>cache.r4.8xlarge</code>, <code>cache.r4.16xlarge</code> </p> </li> <li> <p>Previous generation: (not recommended)</p> <p> <b>M2 node types:</b> <code>cache.m2.xlarge</code>, <code>cache.m2.2xlarge</code>, <code>cache.m2.4xlarge</code> </p> <p> <b>R3 node types:</b> <code>cache.r3.large</code>, <code>cache.r3.xlarge</code>, <code>cache.r3.2xlarge</code>, <code>cache.r3.4xlarge</code>, <code>cache.r3.8xlarge</code> </p> </li> </ul> </li> </ul> <p> <b>Additional node type info</b> </p> <ul> <li> <p>All current generation instance types are created in Amazon VPC by default.</p> </li> <li> <p>Redis append-only files (AOF) are not supported for T1 or T2 instances.</p> </li> <li> <p>Redis Multi-AZ with automatic failover is not supported on T1 instances.</p> </li> <li> <p>Redis configuration variables <code>appendonly</code> and <code>appendfsync</code> are not supported on Redis version 2.8.22 and later.</p> </li> </ul>",
         "Snapshot$Engine": "<p>The name of the cache engine (<code>memcached</code> or <code>redis</code>) used by the source cluster.</p>",
         "Snapshot$EngineVersion": "<p>The version of the cache engine version that is used by the source cluster.</p>",
         "Snapshot$PreferredAvailabilityZone": "<p>The name of the Availability Zone in which the source cluster is located.</p>",
@@ -1459,7 +1698,15 @@
         "Tag$Key": "<p>The key for the tag. May not be null.</p>",
         "Tag$Value": "<p>The tag's value. May be null.</p>",
         "TestFailoverMessage$ReplicationGroupId": "<p>The name of the replication group (console: cluster) whose automatic failover is being tested by this operation.</p>",
-        "TestFailoverMessage$NodeGroupId": "<p>The name of the node group (called shard in the console) in this replication group on which automatic failover is to be tested. You may test automatic failover on up to 5 node groups in any rolling 24-hour period.</p>"
+        "UnprocessedUpdateAction$ReplicationGroupId": "<p>The replication group ID</p>",
+        "UnprocessedUpdateAction$ServiceUpdateName": "<p>The unique ID of the service update</p>",
+        "UnprocessedUpdateAction$ErrorType": "<p>The error type for requests that are not processed</p>",
+        "UnprocessedUpdateAction$ErrorMessage": "<p>The error message that describes the reason the request was not processed</p>",
+        "UpdateAction$ReplicationGroupId": "<p>The ID of the replication group</p>",
+        "UpdateAction$ServiceUpdateName": "<p>The unique ID of the service update</p>",
+        "UpdateAction$NodesUpdated": "<p>The progress of the service update on the replication group</p>",
+        "UpdateAction$EstimatedUpdateTime": "<p>The estimated length of time for the update to complete</p>",
+        "UpdateActionsMessage$Marker": "<p>An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by <code>MaxRecords</code>.</p>"
       }
     },
     "Subnet": {
@@ -1494,10 +1741,24 @@
         "DescribeEventsMessage$StartTime": "<p>The beginning of the time interval to retrieve events for, specified in ISO 8601 format.</p> <p> <b>Example:</b> 2017-03-30T07:03:49.555Z</p>",
         "DescribeEventsMessage$EndTime": "<p>The end of the time interval for which to retrieve events, specified in ISO 8601 format.</p> <p> <b>Example:</b> 2017-03-30T07:03:49.555Z</p>",
         "Event$Date": "<p>The date and time when the event occurred.</p>",
+        "NodeGroupMemberUpdateStatus$NodeDeletionDate": "<p>The deletion date of the node</p>",
+        "NodeGroupMemberUpdateStatus$NodeUpdateStartDate": "<p>The start date of the update for a node</p>",
+        "NodeGroupMemberUpdateStatus$NodeUpdateEndDate": "<p>The end date of the update for a node</p>",
+        "NodeGroupMemberUpdateStatus$NodeUpdateInitiatedDate": "<p>The date when the update is triggered</p>",
+        "NodeGroupMemberUpdateStatus$NodeUpdateStatusModifiedDate": "<p>The date when the NodeUpdateStatus was last modified</p>",
         "NodeSnapshot$CacheNodeCreateTime": "<p>The date and time when the cache node was created in the source cluster.</p>",
         "NodeSnapshot$SnapshotCreateTime": "<p>The date and time when the source node's metadata and cache data set was obtained for the snapshot.</p>",
         "ReservedCacheNode$StartTime": "<p>The time the reservation started.</p>",
-        "Snapshot$CacheClusterCreateTime": "<p>The date and time when the source cluster was created.</p>"
+        "ServiceUpdate$ServiceUpdateReleaseDate": "<p>The date when the service update is initially available</p>",
+        "ServiceUpdate$ServiceUpdateEndDate": "<p>The date after which the service update is no longer available</p>",
+        "ServiceUpdate$ServiceUpdateRecommendedApplyByDate": "<p>The recommendend date to apply the service update in order to ensure compliance. For information on compliance, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/elasticache-compliance.html#elasticache-compliance-self-service\">Self-Service Security Updates for Compliance</a>.</p>",
+        "Snapshot$CacheClusterCreateTime": "<p>The date and time when the source cluster was created.</p>",
+        "TimeRangeFilter$StartTime": "<p>The start time of the time range filter</p>",
+        "TimeRangeFilter$EndTime": "<p>The end time of the time range filter</p>",
+        "UpdateAction$ServiceUpdateReleaseDate": "<p>The date the update is first available</p>",
+        "UpdateAction$ServiceUpdateRecommendedApplyByDate": "<p>The recommended date to apply the service update to ensure compliance. For information on compliance, see <a href=\"https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/elasticache-compliance.html#elasticache-compliance-self-service\">Self-Service Security Updates for Compliance</a>.</p>",
+        "UpdateAction$UpdateActionAvailableDate": "<p>The date that the service update is available to a replication group</p>",
+        "UpdateAction$UpdateActionStatusModifiedDate": "<p>The date when the UpdateActionStatus was last modified</p>"
       }
     },
     "Tag": {
@@ -1511,7 +1772,7 @@
       "refs": {
         "AddTagsToResourceMessage$Tags": "<p>A list of cost allocation tags to be added to this resource. A tag is a key-value pair. A tag key must be accompanied by a tag value.</p>",
         "CreateCacheClusterMessage$Tags": "<p>A list of cost allocation tags to be added to this resource.</p>",
-        "CreateReplicationGroupMessage$Tags": "<p>A list of cost allocation tags to be added to this resource. A tag is a key-value pair. A tag key does not have to be accompanied by a tag value.</p>",
+        "CreateReplicationGroupMessage$Tags": "<p>A list of cost allocation tags to be added to this resource. Tags are comma-separated key,value pairs (e.g. Key=<code>myKey</code>, Value=<code>myKeyValue</code>. You can include multiple tags as shown following: Key=<code>myKey</code>, Value=<code>myKeyValue</code> Key=<code>mySecondKey</code>, Value=<code>mySecondKeyValue</code>.</p>",
         "TagListMessage$TagList": "<p>A list of cost allocation tags as key-value pairs.</p>"
       }
     },
@@ -1536,7 +1797,7 @@
       }
     },
     "TestFailoverNotAvailableFault": {
-      "base": null,
+      "base": "<p>The <code>TestFailover</code> action is not available.</p>",
       "refs": {
       }
     },
@@ -1544,6 +1805,60 @@
       "base": null,
       "refs": {
       }
+    },
+    "TimeRangeFilter": {
+      "base": "<p>Filters update actions from the service updates that are in available status during the time range.</p>",
+      "refs": {
+        "DescribeUpdateActionsMessage$ServiceUpdateTimeRange": "<p>The range of time specified to search for service updates that are in available status</p>"
+      }
+    },
+    "UnprocessedUpdateAction": {
+      "base": "<p>Update action that has failed to be processed for the corresponding apply/stop request</p>",
+      "refs": {
+        "UnprocessedUpdateActionList$member": null
+      }
+    },
+    "UnprocessedUpdateActionList": {
+      "base": null,
+      "refs": {
+        "UpdateActionResultsMessage$UnprocessedUpdateActions": "<p>Update actions that haven't been processed successfully</p>"
+      }
+    },
+    "UpdateAction": {
+      "base": "<p>The status of the service update for a specific replication group</p>",
+      "refs": {
+        "UpdateActionList$member": null
+      }
+    },
+    "UpdateActionList": {
+      "base": null,
+      "refs": {
+        "UpdateActionsMessage$UpdateActions": "<p>Returns a list of update actions</p>"
+      }
+    },
+    "UpdateActionResultsMessage": {
+      "base": null,
+      "refs": {
+      }
+    },
+    "UpdateActionStatus": {
+      "base": null,
+      "refs": {
+        "ProcessedUpdateAction$UpdateActionStatus": "<p>The status of the update action on the Redis cluster</p>",
+        "UpdateAction$UpdateActionStatus": "<p>The status of the update action</p>",
+        "UpdateActionStatusList$member": null
+      }
+    },
+    "UpdateActionStatusList": {
+      "base": null,
+      "refs": {
+        "DescribeUpdateActionsMessage$UpdateActionStatus": "<p>The status of the update action.</p>"
+      }
+    },
+    "UpdateActionsMessage": {
+      "base": null,
+      "refs": {
+      }
     }
   }
 }

vendor/github.com/aws/aws-sdk-go/models/apis/elasticache/2015-02-02/paginators-1.json

@@ -66,11 +66,23 @@
       "output_token": "Marker",
       "result_key": "ReservedCacheNodesOfferings"
     },
+    "DescribeServiceUpdates": {
+      "input_token": "Marker",
+      "limit_key": "MaxRecords",
+      "output_token": "Marker",
+      "result_key": "ServiceUpdates"
+    },
     "DescribeSnapshots": {
       "input_token": "Marker",
       "limit_key": "MaxRecords",
       "output_token": "Marker",
       "result_key": "Snapshots"
+    },
+    "DescribeUpdateActions": {
+      "input_token": "Marker",
+      "limit_key": "MaxRecords",
+      "output_token": "Marker",
+      "result_key": "UpdateActions"
     }
   }
 }

vendor/github.com/aws/aws-sdk-go/models/apis/elasticache/2015-02-02/smoke.json

@@ -0,0 +1,18 @@
+{
+    "version": 1,
+    "defaultRegion": "us-west-2",
+    "testCases": [
+        {
+            "operationName": "DescribeEvents",
+            "input": {},
+            "errorExpectedFromService": false
+        },
+        {
+            "operationName": "DescribeCacheClusters",
+            "input": {
+                "CacheClusterId": "fake_cluster"
+            },
+            "errorExpectedFromService": true
+        }
+    ]
+}