Version 5.8 was just approved. New features include:
✔ Reorder tabs by long pressing a tab
✔ Added Format with Readability option to fullscreen buttons, action menu, and gestures.
✔ iPad users can now add an additional button to the left side of the address bar. Goto settings->regular screen buttons.
✔ Re-added support for untrusted SSL Certificates
✔ Airplay support for saved audio and video files (requires ios4.2+)
✔ Download Manager Improvements
- Improved filename and extension recognition.
- Removed save conformation screen. Downloads now start when you click download file
✔ Bookmarks can be exported through iTunes sharing
✔ Fixed encoding issue for search suggestions which affected some languages
✔ Rotation bug when composing Gmail messages
✔ Google+ shared links didn’t work
✔ bug where playback controls weren’t displaying for saved audio/video files
✔ IOS 5 Beta issues
✔ IOS 3 crash
✔ Settings Bugs