Hi Giuseppe,
There were recent updates to @update.afni.binaries, afni_system_check.py and apsearch to deal with zsh, including for AFNI command option completion (apsearch) and setting up .zshrc (in @update.afni.binaries).
The zsh format for option completion is more restricted than the bash format, so we had to create new files for zsh.
The 10.12_local package is still compiled against R 3.6. That is not an AFNI restriction, it is a macos_10.12_local package restriction (which is currently the only mac package we build). We plan to build against 4.0 as well, in a new package, but have not gotten to it yet. Sorry.
- rick