From a post on ANN:
MorphOS ISO 1.4.4 most important changes
========================================
ide.device
- Support for high capacity hard drives (over 128/137 GB).
CDrive - CDFileSystem
- Support for high capacity media (over 4GB).
SmartFileSystem
- Possibility to delete file from a full partition.
- Relative/crossdevice soft links work again.
pegasos.audio
- Support for S/P-DIF optical output.
- Support recording, full-duplex.
- Fixed problem with simultaneous audio applications.
- Audio prefs support latest AHI features (volume scaling, device.audio, ...)
Trance - 68k JIT emulation
- Fixed various issues with Aladdin 4D, QuakeWorld client, xfd decrunchers and more.
via_rhinepci.device and rtl_8139pci.device
- Speed optimized.
- Fixed lockup problem.
- Support for a lot more RTL8139 compatible cards.
RexxMast
- Fixed problems when using the "ts" tool.
Radeon monitor driver
- Fixed overlay to use right gamma value on all supported boards. Colours look correct now.
- Speed optimized.
ixemul.library and ixnet.library
- Fixed root path issues.
- Global variables are usable.
- Speed optimized.
Multiview
- Support for sound streaming.
Apdf
- Support for recent PDF documents.
General:
- A lot of other bugfixes and improvements everywhere.
You can read the rest of it
here.
