In addition to adding compatibility with OS X 10.8 Mountain Lion, Apple has updated Aperture to version 3.3.2 with a smattering of improvements. The professional photo organizer now enables you to sort projects and albums in the Library Inspector by date (in addition to name and kind), and adds the capability for Auto White Balance to correct color using Skin Tone mode (even when Faces is disabled). The update also fixes an issue that affected performance when entering or exiting Full Screen mode. ($79.99 new in the Mac App Store, free update, 530 MB)
Turn Off Filename Extension Warning
In Leopard, Apple fixed an annoying aspect of working with the Finder in Tiger. Previously, if you changed a file's extension, the Finder prompted for confirmation. But since no one has ever accidentally changed a filename extension, Apple thankfully added an option to turn that warning off in the Leopard Finder's preferences. Choose Finder > Preferences, and in the Advanced screen, deselect Show Warning Before Changing an Extension.