Latest stable is 2.2.10, which is a bit old. Please test and stabilize 2.3.6, which has been in the tree for a month now, with no open bugs. I have been happily using it since it got released, and found no issue so far. Migration from 2.2.x to 2.3.x should be without problems either. Thanks for your time.
sparc stable.
Stable on x86
Stable for HPPA.
Stable on amd64.
stable on ppc64
Stable on Alpha.
ppc stable