Please allow true anonymous IP editing. Currently, unregistered users' edits always make their IP addresses public in page history.
Splitting this discussion from the mailing list so that the people may submit the patches.
Previous discussions: https://www.mediawiki.org/wiki/Requests_for_comment/Exposure_of_user_IP_addresses#Previous_discussions
Merged tasks: T2556, T7486, T64979, T92366. (This manual list is necessary due to T883/T887. Please don't remove.)