For reference, here are the Build Versions for the Autodesk Softimage releases:
| Release | Build Version |
|---|---|
| 2013 SP1 | 11.1.1.0 |
| 2013 | 11.0.525.0 |
| 2012 SAP | 10.5.98.0 |
| 2012 SP1 | 10.1.62.0 |
| 2012 | 10.0.422.0 |
| 2011 SAP SP1 | 9.6.194.0 |
| 2011 SP2 | 9.2.102.0 |
| 2011 SP1 | 9.1.91.0 |
| 2011 | 9.0.243.0 |
| 2010 SP1 | 8.0.249.0 |
| 2010 | 8.0.201.0 |
| 7.5 | 7.5.191.0 |
eX-SI 
Where does the .249, .91, 194 fit into the version number ? I can understand 9.1, 9.2, then there is .91 proceeding it, as in the example; 2011 SP1.
The version numbers are MAJOR.MINOR.BUILD, where the BUILD number is an internal ID for a specific build. As you might expect, Softimage is built on a daily basis, and every build has its own build number. Usually this number is only useful for people on the Beta, sometimes they think they have the release version but actually they have a slightly earlier version that was released to the beta group: the build number is how we would identify that.