This extension was unmaintained for years and now no longer works on supported versions of MediaWiki (1.27+).
- Archive documentation on mediawiki.org - https://www.mediawiki.org/wiki/Extension:Advanced_Meta ( done by @Kghbln )
- Remove from mediawiki/extensions ( along with in .gitmodules ) - https://gerrit.wikimedia.org/r/#/c/371639/
- Remove tests in intregation/config ( zuul/layout.yaml ) - https://gerrit.wikimedia.org/r/#/c/371640/
- Remove from translatewiki ( groups/MediaWiki/mediawiki-extensions.txt ) - https://gerrit.wikimedia.org/r/#/c/371641/
- Mark as read-only on Gerrit ( https://gerrit.wikimedia.org/r/#/admin/projects/mediawiki/extensions/AdvancedMeta )
- Deactivate the extension's diffusion repository: ( https://phabricator.wikimedia.org/r/project/mediawiki/extensions/AdvancedMeta )
- Merge D747