This release contains a security fix (see the advisory). An upgrade is recommended to all users of webform 7.x-3.x
Besides the backport of the security fix this release also includes a backport of the webform4 webform_get_submissions(). This allows other modules (ie. webform_submission_uuid) to extend the webform submission data more easily.
In addition to the news page and sub-tabs, all security announcements are posted to an email list. To subscribe to email: log in, go to your user profile page and subscribe to the security newsletter on the Edit » My newsletters tab.