Brian Ward

There are several issues that have arisen that will likely be blockers for a release. Laplace related: - https://github.com/stan-dev/math/pull/3209 and https://github.com/stan-dev/stanc3/pull/1521 - https://github.com/stan-dev/math/pull/3210 and https://github.com/stan-dev/stanc3/pull/1523 - https://github.com/stan-dev/math/issues/3205 Other: - https://github.com/stan-dev/math/pull/3221...

My personal goal is to get RC3 out this week. https://github.com/stan-dev/math/pull/3221 is pretty close to mergeable I think, and then it's just a question of what do we do in...

I'm not sure @charlesm93 is currently subscribed to this issue, but he's probably one of the better positioned people to answer your questions @bob-carpenter so I'm pinging him

> I want a branch with the embedded Laplace to be easily accessible We could (rather trivially) add a flag to the compiler which you need to pass to enable...

> The main piece left for Laplace is merging the wolfe line search code. If we want to do the release this week then idt I'll have time to get...

I've prepared https://github.com/stan-dev/stanc3/pull/1539 In short, I think the summary is: - If Wolfe is merged before the remaining necessary non-laplace bugfixes, we can add a beta flag but include all...

With https://github.com/stan-dev/math/pull/3221 merged we should be good to run RC3 on Monday.

RC3 is out! Hopefully we will be good to go on the full release next week.

Thanks Aki. I’m guessing that was introduced by https://github.com/stan-dev/math/pull/3221 purely because it mentions Eigen Maps, but I’ll try to find the exact cause

Backtrace blames your `diagSPD_periodic` function calling `log_modified_bessel_first_kind`: ``` #15 stan::math::apply_scalar_binary(std::vector&&, double&, double&) (f=..., x=..., y=@0x7fffffffb658: 1.8872158590898946) at stan/lib/stan_math/stan/math/prim/functor/apply_scalar_binary.hpp:311 #16 0x00005555555add22 in stan::math::log_modified_bessel_first_kind (b=@0x7fffffffb658: 1.8872158590898946, a=...) at stan/lib/stan_math/stan/math/prim/fun/log_modified_bessel_first_kind.hpp:241 #17 gpbf4_model_namespace::diagSPD_periodic (alpha=@0x7fffffffb908:...