Google Play Games Services C++ SDK 3.0 Released- Google Developers Blog
Jan 18, 2018

Summary
This post announces the release of version 3.0 of the Google Play Games Services C++ SDK. It highlights the deprecation of older APIs for achievements, leaderboards, and saved games, and introduces the new APIs for these features. It also mentions the removal of the "Play Games Services" C++ SDK from the Google Play Services library and its relocation to a standalone repository, along with the introduction of a new C++ SDK for Android.