The release has fixes tracked by bug 686768, including important security fixes involving SKS keyserver key poisoning DoS attacks (see bug 689072 and bug 689506). There are no known regression.
amd64 stable
x86 stable
alpha stable
arm stable
ppc stable
ppc64 stable
ia64 stable
s390 stable
sh stable
m68k stable
arm64 stable
sparc stable
hppa stable. Last arch, closing.