ST-2026-206 · SDKs & toolchains
DynamoDB Mapper for Kotlin reaches General Availability
AWS made DynamoDB Mapper for Kotlin generally available on 3 August 2026 as a high-level library for mapping Kotlin data classes to DynamoDB, with production-ready support including update, batch and transaction operations, atomic counters and TTL management.
Previous state
DynamoDB Mapper for Kotlin was available as a Developer Preview and its APIs were not yet declared stable and production-ready.
Current state
DynamoDB Mapper for Kotlin is generally available with stable production-ready APIs for idiomatic Kotlin mapping and expanded update, batch, transaction, counter and TTL capabilities.
Affected users
Who needs to care
Kotlin developers using the AWS SDK for Kotlin to read, write and query Amazon DynamoDB with high-level data-class mapping.
Required response
What to do
Review GA breaking changes from the Developer Preview and validate generated schemas, converter changes and application behavior before upgrading existing preview integrations.
Evidence boundary
What the source does not prove
The source proves General Availability of the high-level DynamoDB Mapper for Kotlin library and its documented GA capabilities. It is not a DynamoDB service-API lifecycle change and does not require all Kotlin applications to use the mapper.
Lifecycle history
Dated event sequence
- DynamoDB Mapper for Kotlin becomes generally available
AWS announced GA and removed experimental status while documenting new update, batch, transaction, counter and TTL capabilities.
Evidence ledger
First-party sources
- 01Amazon Web Services — Announcing General Availability of DynamoDB Mapper for Kotlin
Official AWS Developer Tools Blog · 2026-08-03
Open official source ↗