[Exim] 4.12 stable or wait for 4.13?

Hi,

Given a few minor problems we ran into in the short-lived 4.11 Exim
release, I was originally a bit hesitant to upgrade to 4.12. However,
I've seen several people running 4.12 without any apparant problems.

Is 4.12 considered stable at this point or should we wait for 4.13?

On that train of thought, is 4.13 something in the works? If so,
perhaps we'll wait just to avoid having double the work. If 4.12 is
good for a while, though, we'll move forward.

Thanks!

--
Dean Brooks
dean@???