Method "Symfony\Component\EventDispatcher\EventSubscriberInterface::getSubscribedEvents()" might add "array" as a native return type declaration in the future.

The failing tests are due to outdated third party libraries. The work on https://www.drupal.org/project/flysystem/issues/3227240 📌 Use a different package for stream wrapper support Closed: outdated , which refactors the project to eliminate the dependencies on the third party libraries in question, addresses the failing tests that appear here.

When combined with the patch from https://www.drupal.org/project/flysystem/issues/3227240 📌 Use a different package for stream wrapper support Closed: outdated , all unit tests pass.

I'm going to go ahead and merge this, and continue working on https://www.drupal.org/project/flysystem/issues/3227240 📌 Use a different package for stream wrapper support Closed: outdated , both are needed for full d10 support.