- `draft/message-redaction` — right-click your own message timestamp → Delete to send a `REDACT`; redacted messages display as `[message deleted]` in grey italic. Only shown when the server acknowledges the CAP.
- `account-notify` + `extended-join` — UplinkIRC tracks each nick's NickServ account in real time. Account name shows as a tooltip in the nick list (hover a nick).
- `WHOX` — `WHO` requests now use field mask `%cnfa,42` to retrieve account names in the initial join scan, populating nick list tooltips without separate WHOIS queries.
- `Monitor` — IRCv3 watch list for online/offline status. Commands: `/monitor add `, `/monitor del `, `/monitor list`, `/monitor clear`, `/monitor status`. List persists to `config.toml` under `[monitor] nicks = [...]`.
- `invite-notify` — broadcast invitations post a status line in the relevant channel buffer (or the server buffer when you are the target).
- `setname` — when a user in a shared channel changes their real name via `SETNAME`, a quiet status line appears.
- `userhost-in-names` — CAP negotiated; `NAMES` replies with `nick!user@host` are parsed correctly.