I'm planning to release SMW 1.6.2 at the end of the coming weekend (just in time for SMWCon!), and would appreciate people testing the code a little. Changes where made to how SMW deals with query parameters, which has a pretty high risk of breaking things elsewhere, esp for people using not so common result formats. Just updating your wiki to trunk and reporting any issues that might appear would be a great help :)
Apart from these changes, 1.6.2 also brings some bugfixes and small improvements, of which the most notable are listed in the release notes:
Jeroen De Dauw
Don't panic. Don't be evil.