v1.0.0-rc3

At this point we're pretty confident we're replicating Stan 2 behavior. If you find anything that doesn't line up or make sense please file an issue or send Sean an email!

Instructions:

Trying it with CmdStan can be as simple as:

1. git clone --recursive https://github.com/stan-dev/cmdstan; cd cmdstan
2. make -j4 build
3. Download the stanc3 binary for your OS to the right place:

• Linux: curl -L https://github.com/stan-dev/stanc3/releases/download/v1.0.0-rc1/linux-stanc -o bin/stanc
• Mac: curl -L https://github.com/stan-dev/stanc3/releases/download/v1.0.0-rc1/mac-stanc -o bin/stanc
• Windows: curl -L https://github.com/stan-dev/stanc3/releases/download/v1.0.0-rc1/windows-stanc -o bin\stanc

4. make <path/to/model.stan>

If you'd like to go the extra mile and help us check that it also gets the same results as your models, if you have them in the same folder as a .data.R file with the same name, you can use the performance-tests-cmdstan repo to compare compilers:

1. git clone --recursive https://github.com/stan-dev/performance-tests-cmdstan; cd performance-tests-cmdstan
2. Download the binary as above and remember its location.
3. bash compare-compilers.sh "<path/to/models/dir> --num_samples=10" <path/to/stanc3/from/step/2>

Thanks all!