The following table gives details on the update rollups available to date for CRM 2011, as well as version numbers. This previous post only links to the rollups up to version 5, so this is meant as an update to that, as well as a reference back to build numbers of each rollup.
|Update Rollup 1||5.0.9688.1045|
|Update Rollup 2||5.0.9688.1155|
|Update Rollup 3||5.0.9688.1244|
|Update Rollup 4||5.0.9688.1450|
|Update Rollup 5||5.0.9688.1533|
|Update Rollup 6 *||5.0.9690.1992|
|Update Rollup 7||5.0.9690.2165|
|Update Rollup 8||5.0.9690.2243|
Note that rollups after UR6 require UR6 to be installed prior.
To determine the current build # of the instances, open the Deployment Manager and look at the organization version. Also, the update column will tell you if there updates available, if automatic updates is enabled on the server (in production scenarios it’s probably not, so don’t count on this value).