Administrators can now send a status message to all users at once.
Fixed bugs.
Upgrade Notes
Everyone should run update.php after upgrading to this release.
There is a new permission to access the settings page, and there are two new settings.
Most default views have changed. If you have overridden the default views, I recommend cloning your changed view and then reverting the changes.
A few Views handlers changed names, and as a result, your overridden views may have a "broken handler" listed. This could change the behavior of your view.
You may lose patterns from your Activity publishing templates during the upgrade, especially for the "Owner" role. Write them down first.
Developers: the API has changed significantly. Most of these changes were additions and most of the rest are backwards-compatible, but you may want to check the documentation.