Opera Releases Browser Version 12.13 with Security Fixes and More
Opera released its first web browser upgrade of the year to version 12.13 for Mac OS X and other operating systems, fixing bugs mostly related to arbitrary code execution. The recommended upgrade offers security fixes and stability enhancements, along with general and User Interface (UI) fixes: Fixed an issue where Opera gets internal communication errors [...]
http://www.intego.com/mac-security-blog/opera-releases-browser-version-12-13-with-security-fixes-and-more/