Introducing Google+ Sign-In: simple and secure, minus the social spam- Google Developers Blog

What this post added

Introduced Google+ Sign-In, a new authentication mechanism designed to simplify and secure user sign-in for developers. This feature aims to reduce social spam by allowing users to control the information shared and provides a more streamlined experience compared to traditional social logins. It leverages existing Google identity infrastructure to provide a secure and user-friendly authentication solution.