Critical Security updates to Microsoft Windows, Internet Explorer,  Office and other products became available on Patch Tuesday. This is a large security update and users should promptly update to enjoy best levels of protection. So far, no issues encountered in early use after installation.  

https://isc.sans.edu/diary/Microsoft+November+2014+Patch+Tuesday/18941

http://technet.microsoft.com/en-us/security/bulletin/ms14-nov