Since December, the single sign-on button has supported all three account types. In that sense, the blue button just offers a fuller picture of what Google’s identity platform now encompasses.

Google is finally deprecating Plus as a means to sign into third-party apps and services. Developers are being encouraged to adopt the new Google Sign-In method with its improved user experience.

Google introduced a new sign-in button for Google+ today that developers can add to their website or mobile app. If you've activated your Google+ account, this means you'll be able to log in to ...

Google has begun testing a new “Sign in with Google” button that replaces its Google+ sign-in button, signaling that the company may be close to shutting its social network service down.