
It is getting a little complex keeping you clearly informed about KirstenLee’s viewer releases with terms that accurately convey a viewer’s status. It is hard to be clear about which is a production viewer, test or Beta viewer, and a Release Candidate. The problem is some of the code is Linden Lab code not yet in the SL Beta or Standard viewers, which sort of makes all the Kirsten viewers pre-beta viewers. The distinctions are blurred. Suffice to say to say, the Kirsten viewers are as bleeding edge as they come.
The S21(3) is KirstenLee’s official current release. It is available for download.
KirstenLee’s current release announcement is about S21(4) Release Candidate 1 or Kirstens S21 2.6.0.4 RC1, which is available as of 2/7.

