2.4.5 fixed the fallback PATH bug, and I think it's ready to go stable. I'd use a second opinion though, so if you agree, then please CC the arches.
ia64 stable
Stable on alpha.
hppa stable
ppc/ppc64 stable
sparc stable (thanks to Rolf Eike Beer)
x86 stable
amd64 stable
Ping.
arm stable
sh stable
arm64 stable
s390 stable
Arch team timeout.