Changes Adding support for r6gd instances for Redis with data tiering. In a cluster with data tiering enabled, when available memory capacity is exhausted, the least recently used data is automatically tiered to solid state drives for cost-effective capacity scaling with minimal performance impact.
Changes This release adds ReplicationGroupCreateTime field to ReplicationGroup which indicates the UTC time when ElastiCache ReplicationGroup is created
Changes This release introduces log delivery of Redis slow log from Amazon ElastiCache.
Changes This release adds tagging support for all AWS ElastiCache resources except Global Replication Groups.
Changes Add support to pass ParameterGroup name as part updating Engine Version of Global Datastore.
Changes This release introduces User and UserGroup to allow customers to have access control list of the Redis resources for AWS ElastiCache. This release also adds support for Outposts for AWS ElastiCache.
Changes This release improves the Multi-AZ feature in ElastiCache by adding a separate flag and proper validations.
Changes Amazon ElastiCache now allows you to use resource based policies to manage access to operations performed on ElastiCache resources. Also, Amazon ElastiCache now exposes ARN (Amazon Resource Names) for ElastiCache resources such as Cache Clusters and Parameter Groups. ARNs can be used to apply IAM policies to ElastiCache resources.
Changes Amazon ElastiCache now supports auto-update of ElastiCache clusters after the "recommended apply by date" of service update has passed. ElastiCache will use your maintenance window to schedule the auto-update of applicable clusters. For more information, see https://docs.aws.amazon.com/AmazonElastiCache/latest/mem-ug/Self-Service-Updates.html and https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Self-Service-Updates.html
Changes Amazon ElastiCache now supports Global Datastore for Redis. Global Datastore for Redis offers fully managed, fast, reliable and secure cross-region replication. Using Global Datastore for Redis, you can create cross-region read replica clusters for ElastiCache for Redis to enable low-latency reads and disaster recovery across regions. You can create, modify and describe a Global Datastore, as well as add or remove regions from your Global Datastore and promote a region as primary in Global Datastore.
Changes Amazon ElastiCache for Redis 5.0.5 now allows you to modify authentication tokens by setting and rotating new tokens. You can now modify active tokens while in use, or add brand-new tokens to existing encryption-in-transit enabled clusters that were previously setup without authentication tokens. This is a two-step process that allows you to set and rotate the token without interrupting client requests.
Changes Amazon ElastiCache adds support for migrating Redis workloads hosted on Amazon EC2 into ElastiCache by syncing the data between the source Redis cluster and target ElastiCache for Redis cluster in real time. For more information, see https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/migrate-to-elasticache.html.
Changes Amazon ElastiCache now allows you to apply available service updates on demand to your Memcached and Redis Cache Clusters. Features included: (1) Access to the list of applicable service updates and their priorities. (2) Service update monitoring and regular status updates. (3) Recommended apply-by-dates for scheduling the service updates. (4) Ability to stop and later re-apply updates. For more information, see https://docs.aws.amazon.com/AmazonElastiCache/latest/mem-ug/Self-Service-Updates.html and https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Self-Service-Updates.html
Changes Amazon ElastiCache for Redis now supports encryption at rest using customer managed customer master keys (CMKs) in AWS Key Management Service (KMS). Amazon ElastiCache now supports cluster names upto 40 characters for replicationGoups and upto 50 characters for cacheClusters.
Changes ElastiCache extends support for Scale down for Redis Cluster-mode enabled and disabled replication groups
Changes This release is to add support for reader endpoint for cluster-mode disabled Amazon ElastiCache for Redis clusters.
Changes Amazon ElastiCache now allows you to apply available service updates on demand. Features included: (1) Access to the list of applicable service updates and their priorities. (2) Service update monitoring and regular status updates. (3) Recommended apply-by-dates for scheduling the service updates, which is critical if your cluster is in ElastiCache-supported compliance programs. (4) Ability to stop and later re-apply updates. For more information, see https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Self-Service-Updates.html
Changes ElastiCache for Redis added support for adding and removing read-replicas from any cluster with no cluster downtime, Shard naming: ElastiCache for Redis customers have the option of allowing ElastiCache to create names for their node groups (shards) or generating their own node group names. For more information, see https:// docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_NodeGroupConfiguration.html, ShardsToRetain: When reducing the number of node groups (shards) in an ElastiCache for Redis (cluster mode enabled) you have the option of specifying which node groups to retain or which node groups to remove. For more information, see https:// docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_ModifyReplicationGroupShardConfiguration.html, ReservationARN: ReservedNode includes an ARN, ReservationARN, member which identifies the reserved node. For more information, see https:// docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_ReservedCacheNode.html
Changes This release adds online resharding for ElastiCache for Redis offering, providing the ability to add and remove shards from a running cluster. Developers can now dynamically scale-out or scale-in their Redis cluster workloads to adapt to changes in demand. ElastiCache will resize the cluster by adding or removing shards and redistribute hash slots uniformly across the new shard configuration, all while the cluster continues to stay online and serves requests.
Changes Amazon ElastiCache for Redis today announced support for data encryption both for data in-transit and data at-rest. The new encryption in-transit functionality enables ElastiCache for Redis customers to encrypt data for all communication between clients and Redis engine, and all intra-cluster Redis communication. The encryption at-rest functionality allows customers to encrypt their S3 based backups. Customers can begin using the new functionality by simply enabling this functionality via AWS console, and a small configuration change in their Redis clients. The ElastiCache for Redis service automatically manages life cycle of the certificates required for encryption, including the issuance, renewal and expiration of certificates. Additionally, as part of this launch, customers will gain the ability to start using the Redis AUTH command that provides an added level of authentication.
Changes ElastiCache added support for testing the Elasticache Multi-AZ feature with Automatic Failover.
Changes Additional parameter to 2 create apis to provide an auth Token for Redis.
Changes Elasticache is launching a new major engine release of Redis, 3.2 (providing stability updates and new command sets over 2.8), as well as ElasticSupport for enabling Redis Cluster in 3.2, which provides support for multiple node groups to horizontally scale data, as well as superior engine failover capabilities.