Not much change in the viewer status this past week. The Lindens were having their planning summit (week #32). So, work hours were being expended on planning, not production.
The Alex Ivy viewer, the 64-bit viewer, hopefully, updates next week (#33). It has some fixes being QA’d this weekend. The viewer is crashy for some, not others. I guess I’m an other…
They have put stuff in the coming update hoping to catch the bug(s).

Looks like Maintenance Viewer will be the one to promote. We’ve heard that for a couple of weeks.
Voice Viewer is suffering high crash rates. Lindens have yet to figure out why. So, it is iterating through changes.
The 360-Image Viewer is on hold due to vacations. And when the vacationer comes back he’ll have to fix some CEF stuff first. So, expect this to be on idle for a couple more weeks.

