This is not an authoritative list. Some wiki farms/hosts and/or packages may contain this extension even if they are not listed here. Always check with your wiki farms/hosts or bundle to confirm.
This extension is made by Miraheze. It may have issues you don't see in Miraheze. To report a bug or request a configuration change, please do so in the Miraheze Phabricator instead of the Wikimedia one.