I added a custom field to Maniphest (Config > Config > Maniphest > maniphest.custom-field-definitions)
{ "mycompany.target-version": { "name": "Target Version", "type": "text", "search": true, "fulltext": true } }
I expected a new input field in Maniphest Advanced Search, but it is not there.
Phabricator version is 70c679110e1d4632d19ca160379f83f6f20d79d1