IPS update for Mozilla 3.6

I just did a live update for NIS 2010 and i got a product update. I guess that it was the IPS update and when I check on the forum, there was no official announcement of it even though the update i got has made IPS 2.0 now compatible with Firefox 3.6  I was wondering if symantec actually update their post before they issue the update or do they issue it when it is release for everyone.