Hello,
looking at the volume of reported issues on mailing lists and tracker, upcoming v3.3.0 seems to go well. I have few items on my to-do reported on the mailing list.
Otherwise, in my side, I have 3.3.0 running in a production-like environment for about 4 weeks without problems and another one in a pre-production phase.
Having in consideration all these, I propose to branch 3.3 on June 11. If everything looks very good at that time (or actually few days before), I think we can do the release also by that date. If not, we can do it a week later.
Branching will allow new features development on git master, there are already several contributed patches with new features flowing around on mailing lists and tracker.
Therefore, if you are aware of any issue, please report asap on mailing list (sr-dev) or tracker (preferable - http://sip-router.org/tracker/).
Other suggestions about planning the release 3.3.0 are welcome, as well.
Cheers, Daniel