Despite early speculation that the OS X 10.7 Lion installation would require the latest version of Snow Leopard, the software requirements specifically state you need OS X 10.6.6 or later.
After installing the latest version of OS X, a few people have found some programs (iLife applications in particular) will not launch.
Apple has released OS X 10.6.6, which brings some stability and bug fixes but mainly adds support for Apple's newly released Mac App Store for OS X.
Ahead of the public release of Mac OS X 10.6.5, Apple has seeded Mac OS X 10.6.6 to developers. Apple has also announced that Xserve will no longer be available after January 31, 2011.
The Mac App Store program can be removed from Snow Leopard, but once updated past OS X 10.6.6, reinstalling it may require a little more than simply installing a combo update.
Mac-only no more, the new desktop software lets Windows users get in on the refocusing fun.
While not a widespread problem, a few people have found that running hardware-accelerated video in OS X 10.6.5 can cause the user's log-in session to unexpectedly quit.
Apple's new Mac App Store has proven to be quite popular, but some people do not wish to have it on their systems.
A font handling bug in OS X 10.6.7 has resulted in printing and PDF creation problems when using OpenType PostScript fonts.
Apple has released an update to iPhoto, which addresses problems with merged photo events splitting up when synced to iOS devices.