There has been some small amount of confusion around the Scrum for Team System version numbers, especially with the popularity of the 2010 TFS Beta.
This short post should help clarify things.
| Version | Latest Release | TFS version | Next version | Expected |
| 1.x | 1.2 | 2005 | No longer in development. | NA |
| 2.x | 2.2 | 2008 | 2.3 | 2010 |
| 3.x | 3.0 (Beta 1) | 2010 | 3.0 (Beta 2) | Q4 2009 |
Please also note that each version of Scrum for Team System also has it's own specific version of Task Board for Team System.