Allow users to add, remove and apply change tags using the API
You can add tags at the same time as performing action=edit, as long as you
have the "applychangetags" right. Also, you can add or remove tags after
the fact from revisions and log entries using the API action=tags.
No UI is provided for either of these changes. The target audience is user
scripts, gadgets and similar tools.
Includes a new log parameter format type: "list", for a comma-separated
list of values.
Logging of change tag events is limited to those that do not accompany an
edit (i.e. those done after the fact), and is hidden from Special:Log by
default, similar to the patrol log.