NHibernate 2.1.0 Beta2 is on the road.
After download it please take a look to releasenotes.txt file.
For those are using sources, there is a new branch named : 2.1.x
All next releases of NH2.1 will be released from the branch.
The trunk, stating from few minutes, will be NH3.0.0 and its target is .NET3.5 (“good bye” to .NET2.0 compatibility).