- gapi.auth.signOut() signs the current user out of your app.
- A new status field indicates whether users are signed in to Google and/or your website, and a new method field describes how the sign-in occurred.
- You can now specify sign-in parameters once in <meta> tags, versus passing them multiple times to multiple page elements. These page-level configuration parameters simplify your integration of Google+ Sign-In and interactive posts.
- The sign-in callback is now dynamic when using page-level configuration. This makes it possible, for example, to sync your site’s user experience across multiple tabs.
We hope these changes make it easier to integrate your website with Google+ Sign-In, and we welcome your feedback in the Developing with Google+ community.