Mostly bugfixes

Features

• @weirdan added support for PHP Version-dependent method stubs (#5337)

Bugfixes

• Improving handling of nested template types in class strings (#5290)
• Language Server Allow static methods to be autocompleted on instances (#5210, #5295)
• Language Server Fix inferred type caching bug when editing neighbouring methods (#5297)
• Fix JSON reports containing UTF-8 strings – thanks @danog (#5300)
• Improve callmap for gd functions in PHP 8 – thanks @iluuu1994 (#5271)
• improvements to mysql_init and PDOStatement::fetchAll return type – thanks @morozov (#5306, #5317)
• WeakMap is now generic – thanks @weirdan (#5313)
• Allow iterable coercion from a generic object (#5310)
• Fix an issue with method memoisation (#5317)
• Allow ReflectionParameter::getType() to return non-null if a ReflectionParameter::hasType() call returns true (#5258)
• Undefined variables can now be tracked in arrow functions – thanks @weirdan (#5343)
• ImplicitToStringCast is now emitted in more places – thanks @weirdan (#5344)
• variable usage in bool to int casts are now tracked – thanks @weirdan (#5349)
• explode return type is improved – thanks @weirdan (#5350)
• ceil just returns a float, thanks @simPod (#5355)
• improved return type for min and max – thanks @orklah
• Psalm startup variables are now shielded from plugins that change global variables – thanks @weirdan! (#5366)
• fixed integer overflow that could cause a Psalm crash – thanks @orklah (#5369)
• @orklah fixed a bug where Psalm would not accurately type the output of array_map when given a callable (#5373)
• prevented an edge-case where calling the constructor of a genericised class could poison Psalm's internal cache (b549989)