Psalm Errors After Upgrade to 5.8 from 4.1

[RayHughes]

MethodSignatureMismatch

Argument 1 of ServiceProvider\CacheServiceProvider::register has wrong type 'Phalcon\Di\DiInterface', expecting 'mixed' as defined by Phalcon\Di\ServiceProviderInterface::register (see https://psalm.dev/042)
    public function register(DiInterface $di): void

Http\Request::getClientAddress has wrong type 'bool', expecting 'mixed' as defined by Phalcon\Http\RequestInterface::getClientAddress

PossiblyInvalidMethodCall

Cannot call method on possible array<array-key, Phalcon\Model> variable  (see https://psalm.dev/113)
        ])->filter(fn ($item) => $item);

InvalidClassCasing

Class, interface or enum Phalcon\Mvc\Model\Metadata\Memory has wrong casing (see https://psalm.dev/007)
                return new Memory();

[s-ohnishi]

Is the following message you showed coming from Psalm?

Argument 1 of ServiceProvider\CacheServiceProvider::register has wrong type 'Phalcon\Di\DiInterface', expecting 'mixed' as defined by Phalcon\Di\ServiceProviderInterface::register (see https://psalm.dev/042)
    public function register(DiInterface $di): void

If so, I think you should suspect Psalm.
Currently (v5.8) ide-stubs is

public function register(DiInterface $di): void;

and not mixed.