I saw today that pip's last release, 9.0.1, was in November 2016.
Since that release, 250+ PRs have been merged:
I see that a few issues
are marked as blocking the next release, but are they all blocking *any*
next release (such as a 9.0.2 bugfix release), or would it be possible
to release soon anyway, while working towards 10.0.0? Or are there
backwards-incompatible changes in trunk?