Since 2.35 was released on June 3rd, the four month release cycle takes us to the end of next month (September). I think it also makes sense to give an extra week or so due to StanCon Oxford taking place next month.
I am proposing the following dates:
As always, please use this thread if you have any thoughts on those dates, or if you need a pull request reviewed or think an issue is a high priority for this release.
sounds good to me. I’ve got some PRs about adding improved R-hat and ESS that need add’l work in order to get in for the next release - Feature/3299 improve ess mcse by mitzimorris · Pull Request #3305 · stan-dev/stan · GitHub et al
Bumping this for visibility post-StanCon
Tracking issue is up at Release CmdStan 2.36 · Issue #1296 · stan-dev/cmdstan · GitHub
For those keeping track, the feature freeze and subsequent release will almost certainly delayed while we pursue resolutions to Compilation failures under LLVM 19 · Issue #3106 · stan-dev/math · GitHub
This may involve a fair amount of work (possibly creating our own implementation of complex numbers stan::math and std::complex · Issue #3006 · stan-dev/math · GitHub) so it’s too early to give a new estimate for when the release would be
The above linked issue is resolved, but we want to take some time to look into a more complete solution to the issues that have been arising with std::complex support (3 out of the last 4 LLVM releases have broken stan-math because of these)
@stevebronder thinks this would be reasonable to do in a month’s time, so I’m proposing the following new timeline:
@stevebronder do you think we can get in the unit_vector repulsion thing for this release?
I think this would be next release.
I would very much appreciate this - I would love to see the rank-normalized rhat, ess for CmdStan go in and there’s a few things to nail down w/r/t Feature/3299 diagnostics chainset by mitzimorris · Pull Request #3310 · stan-dev/stan · GitHub and Feature/1263 update stansummary to report rank-normalized ESS tail, ESS bulk, max abs deviation(MAD), and Rhat by mitzimorris · Pull Request #1290 · stan-dev/cmdstan · GitHub
@stevebronder and I ran into some unexpected difficulties. With the hope of not needing another Math Library major version bump next release, we’re going to delay this another 3 weeks (RCs on 11/25).
If we can’t come up with a solution by then, we will likely proceed with the release as-is, and try to fix these issues more completely next release
Here are the PRs that should be merged in the next week before the RCs (roughly in priority order):
Can’t wait for this release! Thanks @WardBrian for putting these together
All of the above linked PRs are merged, so unless something comes up in the next couple days we’ll proceed with the RCs next week. The release will be two weeks later (assuming no issues), to avoid any conflicts with the Thanksgiving holiday in the US