update

Addresses a critical security issue with the Network Time Protocol service.

Improves the stability of the Apple Thunderbolt Display.

Fix for security flaw in bash.

For the MacBook Air (Mid 2011) models.

For mid 2013 MacBook Air models.

Adjusts fan behavior and more in the Mac Pro (Late 2013).

Keep Google Chrome from updating automatically.

For Mid 2012 Retina display models.

Stability and performance fixes

The ATI Radeon X1900 XT with 512MB of dedicated GDDR3 memory