We released 4.4 some hours ago. Due to various issues in the build and code signing process we had to issue a hot fix update (13582) that fixes
- Crash on launch on OS X 10.6
- Check for Update… disabled
- Code signature verification issue
- Java installation prompt
If you have installed a build of 4.4 prior 13582 (Check in About → Cyberduck), make sure to manually reinstall.
The update is currently in review for the Mac App Store.