I just realized we only switch PHP versions in FCGI mode, where per-directory versions are supported, so that makes sense.
Implementing per-directory PHP-FPM would be a great feature and would work well with the new limits feature. I’ll take a closer look at it…
Rel.:
This would be resolved by having independent PHP-FPM services, which we need for resource limits to actually work as expected, anyway. I think that’s a pretty high priority.