Mac users should head to Software Update to grab the newest iteration of Mac OS X, version 10.7.4, which includes a number of bug fixes and general updates.
The big changes include:
- Fixing a problem for some users where the "Reopen windows when logging back in" setting is always enabled.
- Adding RAW image compatibility for more digital cameras.
- Safari updating to version 5.1.6, which contains "stability improvements".
For more info on the update, check out Apple's Support article on the subject. There's no mention in the post of the recent security flaw discovered in FileVault, so it doesn't look like that's been resolved yet.