The reason for the title is the last update of the toolkit happened on August of 2008.
http://ajaxcontroltoolkit.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=16488
Is Microsoft not interested in supporting this product anymore? I just found a nasty bug that caused 2 days of hair pulling that should have been fixed years ago regarding the tabs.
Does anyone have insight into their future releases/bug fixes?
If you look at the Source Control tab, you'll see that the project has been pretty active. The bug fix you're looking for might have been checked in sometime between August and Now.
I would suggest going through the check-ins or check out a copy of the latest source and try it out.