Hamada S. Badr

Try the experimental version of `rstan 2.26` in #887 (instructions in the first post) and report issues in #899. @rok-cesnovar Could you please update [the packages](https://mc-stan.org/r-packages/) from [here](https://github.com/stan-dev/rstan/actions/runs/541905255)? Thanks!

@paul-buerkner Just a reminder :)

@jeffreypullin Good catch! I've replaced `GitRev` with Stan version. Math should have a fixed version for Stan releases. The version of `stanc3` is included in the generated C++ code and...

@avehtari I don't want to tag versions from temporary branches (`experimental` and `StanHeaders_2.26`). I'm waiting for @bgoodri to decide that we can merge them into `develop` and `master`, respectively. I...

Makes sense. I've tagged the latest packaged version: https://github.com/stan-dev/rstan/releases/tag/v2.26.8. Note that this version is based on `StanHeaders_2.26` branch, which is patched to address backward compatibility issues at the C++ level,...

I've tagged all `2.26.x` versions.

@bgoodri I see that v2.21.5 has been submitted to CRAN. Could you push the changes and add a tag for it?

> Now that's odd, the same tests pass here but failed on develop Could you check the order and included headers in `src/stan/model/indexing.hpp`? ```diff - #include ``` Also, I see...

This will get fixed in the upcoming release that we're preparing for submission to CRAB, hopefully soon (after fixing some reverse dependencies). We're currently testing v2.26 (potential release) as well...

I think this isn't related to RStan. You need to install `RcppParallel` in a user library with a path that **has no spaces**, not under **`Program Files`**. Any package that...