[[!comment format=mdwn
 username="joey"
 subject="""comment 1"""
 date="2018-02-06T16:58:04Z"
 content="""
I've added it. However, note that previous versions of git-annex will
not react well to an unknown message being sent, so to use it safely you
will need to detect a new enough version of git-annex. (I've had a todo item
on the protocol for a while to have a way to detect what messages git-annex
understands.)
"""]]
