Improvements 🔧

Support @readonly PHPDoc on the class as alternative to @immutable (#3523), #11775, thanks @herndlm!

Bugfixes 🐛

Fix too early lowercase-string inference (#3585), #11852, thanks @VincentLanglet!
Support for endless loops (#3573), #6807, #8463, #9374, thanks @herndlm!
More precise types for preg_match greater than 0 (#3612), #11293, thanks @staabm!
Too-wide return type - do not report void in PHPDoc union type (phpstan/phpstan-src@5f0b1cc), #11980
Too-wide return type - allow void return type in a union when the returned expr is originally void (phpstan/phpstan-src@80c1df2), #11980
RichParser - fix @phpstan-ignore with trait in the same file (phpstan/phpstan-src@381c137), #11981