[derefr]

> Though I’m not sure when it will be implemented

Presumably, when some random IRCd hacker decides to spend their spare time doing so. Most of the IRCds are FOSS, no?

[swebs]

Well there's still active discussion on how the extension should work. This needs to be squared away first since you'll need all server software and client software to agree.

https://github.com/ircv3/ircv3-specifications/pull/393