Improvements 🔧

• Support for referencing environment variables in the config (#2559), #1918
• Made parent class reflection resolving lazier (#2584), thanks @staabm!
• FileTypeMapper - optimization of type aliases (https://github.com/phpstan/phpstan-src/commit/2be81ac1cffa02da2bd0e3b52961cd3d528f2325)
• Use NonAcceptingNeverType in more places (https://github.com/phpstan/phpstan-src/commit/3e03e9d7c15fdf64e6d55539a6c3045b3b8c6604)
• MethodCall: mark virtual nullsafe call with attribute (#2598), #9830, thanks @janedbal!

Bugfixes 🐛

• Fix checkBenevolentUnionTypes: true along with @template with array-key bound (#2587), #9766, thanks @VincentLanglet!
• Fix type inference of array_sum() (#2591), #9808, thanks @zer0-star!
• Update Symfony polyfills (https://github.com/phpstan/phpstan-src/commit/dfcaa3082c975b13847ff9de5e55438ce7b65fc4), #8538

Function signature fixes 🤖

• More precise inotify related function signatures (#2599), thanks @thg2k!

Internals 🔍

• Prevent most $parentPhpDocBlock->getClassReflection()->isBuiltin() calls (#2585), thanks @staabm!
• micro: use spl_object_id() (#2592), thanks @staabm!
• Update nette/di (#2597)