In portage since Aug 12 2016. Contains one important bugfix, see #591860 comment 4.
KEYWORDS="alpha amd64 ppc ppc64 sparc x86"
Stable on alpha.
Stable for PPC64.
Stable on amd64.
x86 stable
Dear Maintainer (or who is mainly involved in this stable request), This is an auto-generated message that will move the current component to the new component Stabilization. To ensure that the stabilization will proceed correctly, please fill the fields "Atoms to stabilize" and "Runtime testing required" as described here: https://archives.gentoo.org/gentoo-dev/message/4b2ef0e9aa7588224b8ae799c5fe31fa
sparc stable
ppc stable. Closing.