Alongside the BBEdit 10.5.5 maintenance release, Bare Bones Software has updated TextWrangler to version 4.5.3 with many of the same fixes and refinements. Highlights among the nearly 30 improvements include TextWrangler offering to move itself to the Applications folder on launch if it’s not already installed there, the option to discard existing auto-save state by holding down Command-Control-Shift while launching the app, and improved custom cursors that look better on Retina displays. (Free from Bare Bones Software and the Mac App Store, 9.8 MB, release notes)
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.