Want to test the latest +1 features? Today we're introducing a new option for webmasters who want to be the first to know about changes to the +1 button.Enroll in the Google+ Platform Preview, available globally, to test updates before they launch to all users on your site. When you're logged into the account you've enrolled with and you visit a page with the +1 button, you'll see the latest preview release.

If you join now, you'll be able to test the first set of updates we've released to Platform Preview: hover and confirmation bubbles.

If you hover your mouse over a +1 button, you'll see a bubble letting you know what will happen when you click:

After you click, you'll receive confirmation that the +1 has been applied:

This will give your site's users an extra reminder of the account they're using to +1, as well as the fact that their +1 is public.

If you have any questions, please join us in theWebmaster forum. To receive updates about the +1 button, please subscribe to theGoogle Publisher Buttons Announce Group. And for advanced tips and tricks, check ourGoogle Code site.

Posted byJoshua Ganderson, Software Engineer