That’s Forefront Threat Management Gateway 2010 + Service Pack 1 + Software Update 1 + Update Rollup 4 to its friends.

This is the latest 2011 update for TMG – see the fix list at the KB article.

http://support.microsoft.com/kb/2517957

 

The larger list of ISA Server build numbers is still here – wonder if there’s a wiki for it somewhere…