Comment 3 for bug 1475118

debian now has samba 4.2.1 in experimental. This should be a good starting point

I've used samba 4.1 and now I am on 4.2 on arch (used as ad-server). 4.2 to me seems to be more stable (winbindd simply works better than the now obsolete "source4" winbind; even on winbindd they made some improvements), so I would be happy to see 4.2 in 5.10