- Added SUUpdater delegate method for failures. (Benjamin Gordon)
- Make the error definitions public (C.W. Betts)
- Add support for lzma compressed tarballs (Kyle Fuller)
- Back to SKIP_INSTALL=YES by default (Tony Arnold)
- Properly set install names and rpaths for targets (Jake Petroules)
- Use Library/Caches rather than app support directory (Kornel Lesiński)
- Check for a modal window being onscreen before trying to put up the Sparkle prompt (Alf Watt)
- Fixed crashes on 10.7 (Chris Campbell, Ger Teunis)
- Fixed Sparkle tags parsing (Tamás Lustyik)
- SULog code cleanups (Kevin Wojniak)
- Make sure CFBundleVersion is a semantic version number (Jake Petroules)
- Replace typedef enums with typedef NS_ENUM to make Swift happier (C.W. Betts)
- Fix warnings under Xcode 6.1 relating the SUUpdateAlert XIB (Tony Arnold)
- Prefer string constants to strings (Jake Petroules)
- Use Info.plist keys instead of macros (Jake Petroules)
- Only export public symbols. (Jake Petroules)
- BinaryDelta: avoid crash with bad paths (Jake Petroules)
- Fixing Swedish translations (Erik Vikström)
- Turkish localization fixes (Emir)
- Proofing of Ukrainian localization (Vera Tkachenko)
OS X 10.7 or later required
Make sure you add <sparkle:minimumSystemVersion>10.7</sparkle:minimumSystemVersion> tag to <item>s in your appcast. Sparkle will crash on Snow Leopard.