A new release candidate of MPICH, 4.3.0rc1, is now available on our downloads page. See CHANGES for more detailed info. The full set of git commits since 4.2.3 can be found here: https://www.mpich.org/static/downloads/4.3.0rc1/shortlog
At this stage, only critical bugs will be fixed before the 4.3.0 GA release. Please give it a try and report any issues!
