[ { "type": "api-change", "category": "CloudDirectory", "description": "Amazon Cloud Directory now supports optional attributes on Typed Links, giving users the ability to associate and manage data on Typed Links. " }, { "type": "enhancement", "category": "RDS", "description": "Changed lists of valid EngineVersion values to links to the RDS User Guide." }, { "type": "api-change", "category": "StorageGateway", "description": " AWS Storage Gateway now enables you to create cached volumes and tapes with AWS KMS support." } ]