With the release of Dynamics CRM 2013 SP1, there are now two different versions of CRM 2013:

• 6.0.X (the original/RTM version)
• 6.1.X (CRM 2013 SP1)

This means that there will now be two different update rollup streams. The next UR for 6.0 will be Update Rollup 3. The next UR for 6.1/SP1 will be Dynamics CRM 2013 SP1 Update Rollup 1.

Note, you can tell what build and UR you are on by clicking the settings gear in the upper right hand corner of the CRM web client and clicking “About.” The second digit indicates the service pack level, and the third digit indicates the update rollup level.

For example, the current build number is 6.1.0.584. This is the release version of SP1.