Error
MediaWiki version: 1.36.0-wmf.20
[X8elNgpAAL8AASHtlA8AAADE] /wiki/Category:German_pronunciation_of_prepositions ErrorException from line 4021 of /srv/mediawiki/php-1.36.0-wmf.20/includes/parser/Parser.php: ParserOutput::mNoGallery public write access deprecated [Called from Parser::handleDoubleUnderscore]
Impact
That is merely a deprecation?
Notes
Comes from b1a30eb0c40253737b631521b44232f91d158608 / T263851