Improvements 🔧

• Support @pure and @phpstan-pure annotations (#412), thanks @b1rdex!
  
• Support @impure and @phpstan-impure (#412)
  
• It closes these issues: #3746, #3844, #4301, #2105, #929, #1826
  

Bleeding edge 🔪

• Detect stub file added multiple times (https://github.com/phpstan/phpstan-src/commit/4a82eec4044e900be192096d58f04b4e2be80a0a)
  
• BooleanAndConstantConditionRule - check LogicalAnd (https://github.com/phpstan/phpstan-src/commit/40a76e88d0866f7d541e0e43364de07c5a94c465)
  
• BooleanOrConstantConditionRule - check LogicalOr (https://github.com/phpstan/phpstan-src/commit/ae9a558484dc4f330873e962b8dc1b2d18f0c9b7)
  

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.

Bugfixes 🐛

• Fix return type of arrow function (https://github.com/phpstan/phpstan-src/commit/e9b783a5e427dcd058ea72f07cb1ce44b8ee8ba7), #4339
  
• Apply conditional expressions for non-empty arrays inside foreach (https://github.com/phpstan/phpstan-src/commit/35db779fac3363f3f083ccf04d441e88ba0bd3ac), #4343
  

Function signature fixes 🤖

• Updated return values for zip_open() (#419), #4341, thanks @spud!
  
• Updated PHP 8 stubs (https://github.com/phpstan/phpstan-src/commit/d586b939265af336cfec3ec4d712a41146a46322)
  
• Improved setcookie() and setrawcookie() signatures (https://github.com/phpstan/phpstan-src/commit/ccb1d4d4141b23ba87c1762294f54da219d930b1), #4348
  
• array_combine() dynamicExtension (#418), thanks @VincentLanglet!
  
• array_rand() return type extension (#417), thanks @VincentLanglet!
  
• Update ctype_* function signature (#421), thanks @BackEndTea!