I think the way we handle stanc2 now on develop is much nicer to the user so this seems reasonable.
So this release would be 2.22.1 + PR 820 + PR 811 + stanc3 updated to the latest nighlty build. Or do we want to include anything else?
Not sure the make clean fix in #816 is as critical. Other than that there were changes to the random value and how the threading/mpi/opencl info is shown in stdout and csv. But that does not need to be included.
The cleanest thing would be to make a PR to master with all the PRs mentioned above. We then review that and @serban-nicusor makes a release tarball with the latest stanc3 build.
We must make sure that the Stan submodule reference is the same as in 2.22.1. Otherwise this is a 2.23 release.
Based on our current release schedule we are ~5 weeks away from the next release candidate coming out and hopefully 6 weeks from the 2.23 release. Do we then also move this dates back a bit or should we stick with Jan 18/Apr 18/July 18/Oct 18 release dates?