Version 9.1 is fully released now and available for general download.
Note that this is an SP1 release already so any major bugs should all be sorted.
My favourite features are:
- The new locking model
- Indentation on the cube viewer
- New rules editor
and the new dotnet api which contains functions for doing mdx results without using adomd. Something I've already utilised and think will be really useful for other people
