Despite MMS V3.9-00, I seem to have GnuPG 1.4.22 kits
available in the usual place:
http://antinode.info/dec/sw/gnupg.html
No major changes. (Mostly more build options to cope with
newer and/or differently built cURL object libraries when one
of those is used with the keyserver programs.) Still not
really tested, of course, but perhaps no worse than previous
versions.