This new version has four new user tools – Change Password, Enable/Disable Account, Security Groups, and Unlock Account. The Security Group tool is probably the neatest one of the bunch. It will show you all the security groups (Nested groups included) the user or group belongs to. The other tools are pretty self explanatory.
I go into a little more detail on each new tool at my site, and give an explanation for why I was a week late in this release!