Mac OS X 10.6.7

Mac OS X 10.6.7 was an update to Mac OS X 10.6 released on March 21, 2011. It had the following features:

Includes general operating system fixes that enhance the stability, compatibility, and security of your Mac; including fixes that: Additional improvements
 * Improve the reliability of Back to My Mac.
 * Resolve an issue when transferring files to certain SMB servers.
 * Address various minor Mac App Store issues.
 * Includes all the improvements in the previous Mac OS X v10.6.1, 10.6.2, 10.6.3, 10.6.4, 10.6.5, and 10.6.6 updates.
 * Includes Safari 5.0.4.
 * Includes RAW image compatibility for additional digital cameras.
 * Security fixes
 * Resolves a window resizing issue with X-Plane 9 on Macs with ATI graphics
 * Addresses an issue with MacBook Air (Mid 2010) computers that could cause a kernel panic.
 * Address issues in the AirPort driver for certain devices.
 * Improves brightness on external displays and projectors.
 * Addresses an issue where DVD Player may display black video on some Macs using the 64-bit kernel.
 * Addresses an issue with some NEC displays in which the screen may appear black when connected to a Mac Pro (Mid 2010).
 * Resolves an issue in which some Multiple Master (MM) fonts were missing from Mac Pro (Mid 2010), MacBook Pro (15-inch & 17-inch Mid 2010), and iMac (Mid 2010) computers.
 * Addresses various issues with MacBook Air (Mid 2010) computer performance.
 * Resolves an issue in which clicking the Updates tab in the Mac App Store could cause the Mac App Store to become unresponsive.
 * Fixes a problem opening an afp:// URL that points to a file, and changes the AFP mount path to conform to previous Mac OS X releases.
 * Includes the ability to repair certain issues that may prevent hardware RAID volumes from mounting.
 * Fixes a rare issue in Mac OS X v10.6.5 that could cause user accounts to disappear from the Login window and System Preferences after putting the system to sleep.
 * Improves the reliability of dragging files or folders to the Trash when using an NFS home directory.

External References
Apple: About the OS X 10.6.7 Update