Improvements 🔧

Try out PHP 8 analysis now! Set parameters.phpVersion in your phpstan.neon to 80000 and re-run PHPStan to see how well your code will fare once PHP 8 is released!
- It will be improved in the coming weeks to cover more deprecations and new features.
Update phpstorm-stubs and understand @removed annotation (phpstan/phpstan-src@a39a46f, phpstan/phpstan-src@4eecc4f)
Implemented falsey-filtered subtracted mixed type (#339), #1014, thanks @jlherren!

Bugfixes 🐛

hoa/Stream.php - remove registerShutdownFunction (phpstan/phpstan-src@edd5c3c), #3907
DependencyResolver - get current function reflection instead of obtaining it through ReflectionProvider (phpstan/phpstan-src@0e42941), #3909
More useful behaviour of "some jobs remaining" (phpstan/phpstan-src@6c61e49, phpstan/phpstan-src@34c4829), #3910
Fix type-less variadic argument in anonymous function (#332), thanks @jlherren!
Fix native union type parameter with false (phpstan/phpstan-src@917cdb1)
Fix native union type with incomplete PHPDoc (phpstan/phpstan-src@c3d0989)
Fix type inference in assignment with side-effects (#333), #3875, #2611, #3548, thanks @jlherren!
Fix JustNullableTypeTrait.equals() (#335), #3866, thanks @jlherren!
Fix variadic parameter after optional (phpstan/phpstan-src@287b8b8)
Fix reporting overriden variadics (phpstan/phpstan-src@2cd7001)

make second two arguments optional in mysqli_begin_transaction (#331), thanks @MasterOdin!
PHPStan\Reflection\ClassReflection::getName() returns class-string (phpstan/phpstan-src@3d1d930)
Fix Memcache::get signature (#338), thanks @dada-amater!
Handle dynamic return types for bc math functions (#187), thanks @eigan!
First parameter of SimpleXMLElement::children() accepts null (phpstan/phpstan-src@7ce2e54)
functionMap - synchronized some of parameter names with PHP 8 stubs (phpstan/phpstan-src@71e7550, phpstan/phpstan-src@0c87f16)
Dynamic return type extension for pow() (phpstan/phpstan-src@c54e495)