New minor release for GD Press Tools Pro, version 4.5.4 includes few more fixes related to backup, Amazon S3 support, restore script warnings under PHP 5.4/5.5 and few more things. Amazon SDK needed for upload backup files to Amazon S3 is updated to newer version.
Amazon S3 support is updated with newer version of Amazon PHP SDK 1.6.2. This is still old version, but the version that supports PHP 5.2. This library will be replaced in the future with newer library that will not support PHP 5.2. For now, this older library works and will continue to use it while Amazon supports it.
If you have any issues with this new version, please report them in the forums or in the comments here.