Version confusion

[Roaster]

I just noticed that the website of UR now reads version 4.1b, dated January 07 2010.

I've now at least three versions of UR on my HDD, reading 4.1b:
- December 18 2009
- January 02 2010
- January 07 2010

This is really confusing, could you please add the full version number to the UR webpage and/or add a link to a page where each new version is explained in detail?