+1 We'd really like this feature to force all Administrators to use 2FA on our org's wiki (Open Source Ecology).
Feb 27 2018
@Reedy thanks! I checked-out REL1_30, and it does indeed work. I switched all my extensions to this branch, ran update.php, and all is working. Thanks again :)
Why are you using the git master version of an extension with an older version of MediaWiki? This is a combination that isn't supported, nor is it expected to work.
@Jayprakash12345 Can you please decrement the required mediawiki version in the extension.json file to some version that has actually been released?