If you chose to use Windows Update for your installation of Dynamics CRM 2011 beta 1, recently you will have been prompted with the option to install KB2439176. This changes the version:
- 5.0.9585.106 Beta 1
- 5.0.9585.110 Beta 1 with KB2439176
There appears to be little or no background on what this update includes - I've had no problems so far.
You can see all updates here: