Some add-ons check XenForo version to extend the classes in a different way for each version. The validator is updated to detect these cases and not to show a warning regarding invalid class extension.
Require php 7.2+
Require XenForo 2.2+
Require Standard Lib v1.18.0+
Fix template error when $config['enableListeners'] is set to false, or this add-on is being upgraded
Compatibility fix for addons which iterate the entity content type field list.
XF2.2.15+ has a behavior change which causes checking the existence of some XF authored classes to throw instead of return false.