MediaWiki 1.37

MediaWiki 1.37 is a future release of MediaWiki. Consult the file for the full list of changes. It was deployed on Wikimedia Foundation wikis through incremental "wmf"-branches starting in April 2021. The 1.37.0 stable release is expected to come out sometime in late November 2021. Download or checkout the   branch in Git to follow this release.

New features

 * New hook for JavaScript (change 721324).
 * MediaWiki now has limited support for JPEG2000 files.

Action API changes

 * (T280806) The API methods for fetching tokens which were deprecated in MediaWiki 1.24 have been removed. action=query&meta=tokens&type= should be used instead. Please note some token types no longer exist, and you should just use type=csrf for those instead.
 * action=query&prop=info&intoken -> action=query&meta=tokens&type=csrf
 * action=tokens&type= -> action=query&meta=tokens&type=
 * action=query&list=recentchanges&rctoken -> action=query&meta=tokens&type=csrf
 * action=query&prop=revisions&rvtoken=rollback -> action=query&meta=tokens&type=rollback
 * action=query&meta=userinfo&uiprop=preferencestoken -> action=query&meta=tokens&type=csrf
 * action=query&list=users&ustoken=userrights -> action=query&meta=tokens&type=userrights