1# AWS SDK for Java 2.x Documentation 2 3## SDK Usage 4 5- [Developer Guide](https://docs.aws.amazon.com/sdk-for-java/v2/developer-guide/welcome.html) 6 \- How to use the AWS SDK for Java 2.x 7- [Migration Guide](https://docs.aws.amazon.com/sdk-for-java/v2/migration-guide/what-is-java-migration.html) 8 \- How to move from the AWS SDK for Java 1.11.x to 2.x. 9- [1.11 to 2.x Changelog](LaunchChangelog.md) - What has changed 10 between 1.11.x and 2.x. 11 12## SDK Development 13 14- [Contribution Guide](../CONTRIBUTING.md) - How to contribute to the 15 SDK. 16- [Design](design/README.md) - Documents summarizing: (1) design 17 decisions and standards of the SDK, (2) design for new features, and 18 (3) new feature proposals. 19