Arches go ahead.
ia64 stable
arm stable
hppa stable
ppc64 stable
ppc stable
x86 stable
See #625854
Stable on alpha.
Stable on amd64.
sparc stable (thanks to Rolf Eike Beer)
sh stable
Not new-stabling this for no given reason on arm64. Might do it if some test dep actually needs it eventually (which might be the case already, but p.use.masked, but will sort those later).. Older has been removed already, so closing the bug