According to Hyperion's press release (see "Sources" below) this update aims to improve user experience and adds more workarounds to improve compatibility with existing software.
It's mainly a bugfix update to AmigaOS 3.1.4, but there are also a couple of new features:
- Danish and swedish translations
- Setpatch updated
- Audio.device compatibility improved
- HDToolBox improved (default blocksize for large harddrives)
- CrossDOS compatibility improved
Go to Hyperion's download area for registered customers, and get your free update to AmigaOS 220.127.116.11: