I am the maintainer and primary author of the Spring Data DynamoDB community module -> https://github.com/prasanna0586/spring-data-dynamodb
The Spring Data projects page (https://spring.io/projects/spring-data) now points to this actively maintained version. The latest release is fully compatible with Java 21 and Spring Boot 3.5.6, and I am updating the underlying AWS SDK from v1 to v2 to align with current best practices.
The latest version and compatibility is available here -> https://github.com/prasanna0586/spring-data-dynamodb/?tab=readme-ov-file#version--spring-framework-compatibility