The first update to Downcast offers no new features or design tweaks to the recently released Mac podcatcher, but fixes 22 bugs and performance issues (see “Downcast Comes to Mac, but Lacks Instacast’s Polish,” 3 August 2013). Bugs fixed include iCloud-related startup crash loops, failed downloads, crashes related to saved podcast images and deleting downloads, ignored playlist priorities, bugs that prevented syncing, and an issue that prevented OPML import. Loading times for episode playback, startup time, and playlist deletion have all been improved. ($9.99 new from the Mac App Store, free update, 3.6 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.