Can't say as I'm happy with the issues I'm discovering in 5.0.9. Not sure if it is worth a support ticket, as likely nothing would happen until the next point-release, but so far:

- HTML Editor in AJAX client - cannot use Ctrl-B, Ctrl-I, or Ctrl-U for bold/italic/underline
http://www.zimbra.com/forums/users/2...eb-client.html

- Alt-S no longer works for Send (Ctrl-S still does)

- Can no longer switch view from Conversation to Message and sort on the From column

That last one is a kicker. Alot of our users like to do that - not me, but regardless.