From forum lots of people has started testing PHP 8.0 version.
a lot ? hum, I would say few...
Just to know when PHP 8.0 will be officially supported from your side.We will be happy if it's supported in next 9.0.2 patch release.
Please also clarify last php version which is officially supported by Projeqtor 9.0.1
Qualifying a version for a new PHP version is hard work.
The whole application has to be tested, issues found fixed, ...
It's not the question of a simple patch.
We have just started testing the application with PHP 8.
Some fixes will be brought in V9.0.2, but complete testing and official qualification will be brought in V9.1.0 only.
Hopefully, except for already fixed issue, it seems most frequent issue is just a deprecation notice.
So in production environment changing log level to avoid notice should help.
But we don't advise yet to use PHP 8 in production environment.