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This guide helps you install, configure, and run Version 1 and Version 2 of the AWS SDK for PHP side-by-side within the same application or project. Please see the Migration Guide for more information on migrating code from the original AWS SDK for PHP to Version 2.
The AWS SDK for PHP 2 introduces many desirable new features and advantages, but the initial version of Version 2 does not support for all of the AWS services supported by Version 1. We will add support for other services in upcoming releases to the Version 2 SDK, but you can begin migrating code now by using the SDKs side-by-side.