From the update page:
Hash Update Page
If you have the 2004 CD ("Uraguntan")
v10.5 Download Page
If you have the 2003 CD ("Perk")
v10.5 Download Page
--------------------Release Notes
- Fixed multi select delete lights
- Fixed mising decals on some 3 point patches
- Fixed render as lines attributes not showing under group in action or chor
- Fixed deleting motion capture device leaving sensors {Doug M}
- Constraints when loaded from v8.5 preserve their enforcement curves correctly. {Carl Raillard}