Fixes issues with iPhoto, library management, importing, and various crashes. ($79.99 in the Mac App Store, free update; 578 MB from the Mac App Store, 297.63 MB for the standalone updater from Apple’s Web site)
The blogging software adds a word count, better handling for WordPress tags, and numerous fixes. ($39.95 new, free update, 6.2 MB)
Sports a revamped interface, the Gecko 2 engine for faster and better rendering, Do Not Track support, and more. (Free, 26.8 MB)
Adds support for any IMAP account, Gmail’s Priority Inbox, rich text messages, and more. ($9.99 via the Mac App Store, free update, free lite version available, 10.2 MB)
The screenshot utility no longer requires that you create a skitch.com account. (Free, 6.5 MB)
Improves the reliability of Back to My Mac, SMB file transfers, and the Mac App Store, along with numerous security fixes and a variety of other minor bug fixes. (Free)
Fixes security vulnerabilities in Mac OS X 10.5 Leopard, largely in open source components. (Free, 241.35 MB/473.23 MB)
Introduces new printing options, makes data sharing easier, and adds numerous other improvements. ($49 new, $29 upgrade)
Faster searching, improved email archiving, and more database manipulation options. (DEVONthink Pro Office, $149.95 new, free update; DEVONthink Professional, $79.95 new, free update; DEVONthink Personal, $49.95 new, free update; DEVONnote, $24.95 new, free update)
Fixes a crashing bug and a couple issues with iPad syncing. ($38.99 new, free update for owners of Yojimbo 2.0 and later, 7.2 MB)
Adds support for creating partitioned bootable drives, Volume Cloning, and a Local Network Tool. ($99.99 new, $39.99 upgrade)
Updates the Java SE for improved security and reliability. (Free, 75.81 MB / 119.83 MB)
Makes various improvements for syncing with iOS 4.3 devices.
Patches more than 50 security holes, fixes VoiceOver and plug-in issues, and improves other Web page rendering. (Free, 37.65 MB for Snow Leopard, 46.83 MB for Leopard)
Adds support for Dropbox and Azure, includes a new FTP implementation, and fixes numerous bugs. (Free, 22 MB)