Version 7.x-1.1 addresses a security issue that exposed potentially private data from mapped content to a savvy end-user. See SA-CONTRIB-2014-005 - Leaflet - Access bypass for more details. Additionally, a number of bugfixes following the 1.0 release and a few simple feature improvements have been included. It is recommended that anyone using 7.x-1.0 upgrade immediately to this version.
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.