Google+ Sign-In improvements

In December 2013, Google announced enhancements to Google+ Sign-In, making it more versatile and user-friendly for app developers. The updates include support for all Google account types, facilitating easy migration from OpenID v2 or OAuth 2.0 Login to Google+ Sign-In, and introducing incremental auth. This new feature allows apps to request permissions gradually, aligning with user actions, thereby minimizing friction and potentially boosting user engagement. With compatibility with the OpenID Connect standard, Google+ Sign-In offers benefits such as over-the-air installs and interactive posts, aiming to expand app audiences and improve user experience by aligning permission requests with actual user needs.