The aws-sdk-cpp C++ SDK by Amazon is a service for developers that provides a C++ interface for Amazon Web Services. This SDK's main focus is on supporting game development (yet also to be helpful with other projects and systems engineering tasks) and providing platform portability.
Google has rolled out Google Play Services SDK 11.6.0, which introduces major changes to how the APIs are structured. The company is deprecating one API while decoupling another. The idea is to reduce the amount of boilerplate code needed to use the APIs -- something everyone can be happy about.