Adds compatibility with Mountain Lion, while dropping support for Dropbox, Google Drive, and Windows Azure. (Free, 26.1 MB)

Notable software releases this week include Cyberduck 4.3.1, Postbox 3.0.8, Little Snitch 3.1, Transmit 4.3.4, SpamSieve 2.9.7, and GraphicConverter 8.6.

Maintenance release improves gesture-based image zooming in Mountain Lion and fixes broken DEVONthink To Go synchronization. (All updates are free. DEVONthink Pro Office, $149.95 new; DEVONthink Professional, $79.95 new; DEVONthink Personal, $49.95 new; DEVONnote, $24.95 new)

Despite much-publicized Flashback infections in 2012, most Mac users still don’t need antivirus software. We explain why, and which situations might warrant it.

2012 was a watershed year for Apple’s security efforts. While dealing with significant challenges, the company made strong advances, setting the stage for strong security for years to come.

The latest version of the long-standing network backup program Retrospect backs up more quickly thanks to new Instant Scan technology, adds support for Mountain Lion, and improves various low-level behaviors.

Adds the Gatekeeper security feature to Lion, along with a smattering of other fixes. (Free update, 894 MB to 1.91 GB)

Adds compatibility with Mountain Lion and detection of USB 3.0 connection speeds, plus provides a number of fixes. ($99.99 new, free update, 54.8 MB)

Now built using Cocoa, the new release is compatible with Mountain Lion and shifts Web video capture exclusively to Safari. ($99.99 new, free update, 88.5 MB)

Fixes an issue that prevented ClamXav Sentry from launching at login when running Mountain Lion. (Free, 16.9 MB)

Updates all three versions of DEVONthink plus DEVONnote to be compatible with Mountain Lion’s features, including Gatekeeper, Notification Center, and sharing services. (All updates are free. DEVONthink Pro Office, $149.95 new; DEVONthink Professional, $79.95 new; DEVONthink Personal, $49.95 new; DEVONnote, $24.95 new)

Enables audio capture from Safari, QuickTime Player, FaceTime, and Messages on Mountain Lion without use of Instant On component. ($32 new, free update, 5.5 MB)

Provides fixes for volume control on some third-party hardware, access to Netflix’s full-screen mode on the MacBook Pro with Retina Display, and more. ($25 new, free update, 9.6 MB)

Provides additional support for OS X 10.8 Mountain Lion features, including improved access to Twitter and access to Notification Center. ($45 new, free update, 30.4 MB)

Improves compatibility with OS X 10.8 Mountain Lion, plus improves access to 1Password bookmarks, tags, and folders. ($35 new, free update, 2.3 MB)

Adds support for Mountain Lion’s Gatekeeper security feature plus the latest version of Growl (which also provides support for Notification Center). (Free, $27.95 for additional features, free update, 3.2 MB)

Long list of improvements and fixes, highlighted by compatibility with OS X 10.8 Mountain Lion’s Gatekeeper security feature and fixes for PDF creating and printing. Both word processors now require Mac OS X 10.6.6 or later. (Free updates, 137 MB and 37.7 MB respectively)

Adds support for Gatekeeper, fixes a few bugs, and provides compatibility with the Daylite CalDAV server. ($49.99 new, free update, 6.7 MB)

Apple is happy to tell you about the main features of OS X Mountain Lion, but you may not know about the details that TidBITS staff members have shared in this article of important (and fun!) Mountain Lion tips.

The crew that creates the Take Control ebook series has not been sitting idly by while Apple brushed the last tangles out of Mountain Lion’s fur; instead, we’ve been busy grooming three essential guides for taming Apple’s newly released feline.