Are people using macOS 10.14 (released in 2018) able to install the newest version of
httpstan (which PyStan 3 depends on)?
The wheel on PyPI has a tag
macosx_10_15_x86_64, which makes me think it may not work on macOS 10.14.
I’d like to confirm this is the case. If it is, we would need to update the documentation.