The the CategoryWatch extension was created a few years ago for this, but hasn't been updated in a long time so may need some minor fixes by now. https://www.mediawiki.org/wiki/Extension:CategoryWatch
On 30/03/15 12:40, Kai Nissen wrote:
Hi there,
I created a Request for comments[1] and a corresponding Phabricator Task[2] regarding a feature that enables users to watch categories for page additions and removals.
If you are interested in this topic or somehow involved in Extension:Echo or watchlist features, feel free to participate in the discussion.
Cheers, Kai