Deprecated: Use of MediaWiki\Parser\Parser::$pageInCat_cache was deprecated in MediaWiki 1.42. [Called from PageInCat::onClearState in [...]/PageInCat.php at line 174] in /[...]/includes/debug/MWDebug.php on line 379
Deprecated: Use of MediaWiki\Parser\Parser::$pageInCat_onlyCache was deprecated in MediaWiki 1.42. [Called from PageInCat::onClearState in [...]/PageInCat.php at line 175] in /[...]/includes/debug/MWDebug.php on line 379
The errors above are currently showing up when including the library in a 1.42 project, please migrate this dynamic prop access.