Read all about this release on PHPStan's blog!

Major new features 🚀

• Support for PHP 8.4's property hooks (RFC)
• Support for PHP 8.4's asymmetric visibility (RFC)
• Support for PHP 8.4's #[Deprecated] attribute (RFC)

Bleeding edge 🔪

• UnusedFunctionParametersCheck: report precise line (#3743), thanks @janedbal!

If you want to see the shape of things to come and adopt bleeding edge features early, you can include this config file in your project's phpstan.neon:

includes:
	- vendor/phpstan/phpstan/conf/bleedingEdge.neon

Of course, there are no backwards compatibility guarantees when you include this file. The behaviour and reported errors can change in minor versions with this file included. Learn more

Improvements 🔧

• Readonly classes cannot be combined with #[AllowDynamicProperties] (#3738), #12281, thanks @staabm!
• Check trait attributes (#3738), thanks @staabm!
• Named argument detection is scope-PHP version dependent (#3662), thanks @staabm!
• Improve loose comparison on integer (#3748), #12317, #12312, thanks @staabm!
• Improve loose comparison on union type (#3750), thanks @staabm!
• AccessStaticPropertiesRule - fixed blindspot about parent:: (phpstan/phpstan-src@41837b4)

Bugfixes 🐛

• Fix preg_match() group containing start/end meta characters (#3740), #12297, thanks @staabm!

Internals 🔍

• Attributes rules use In*Node virtual nodes for more precise Scope phpstan/phpstan-src@90e48fa)
• Remove duplicated PHPDoc from InternalScopeFactory classes (#3761), thanks @herndlm!
• Scope: use Scope::getConstant instead (#3666), thanks @staabm!