[Feature] Add multiline support #1097

New Issue

2026-10-05T05:03:02+02:00

adam commented

2026-10-05 05:03:02 +02:00

Goal

Hi, since version 6.2.6, Unrealircd (one of the major IRCd) enable the multiline support by default.

But ZNC don't seems to permit to use it.

Tests

Without ZNC:

/cap ls
irc: client capability, server supports: unrealircd.org/link-security=2 unrealircd.org/plaintext-policy=user=allow,oper=deny,server=deny
unrealircd.org/history-storage=memory,disk=encrypted away-notify invite-notify extended-join userhost-in-names multi-prefix cap-notify
sasl setname tls chghost account-notify message-tags batch server-time account-tag echo-message labeled-response draft/chathistory
extended-monitor standard-replies no-implicit-names draft/no-implicit-names draft/extended-isupport
draft/multiline=max-bytes=5250,max-lines=15 unrealircd.org/json-log unrealircd.org/json-log

Multiline messages are sent as is to server and read as a multiline message

With ZNC:

/cap ls
irc: client capability, server supports: account-notify account-tag away-notify batch cap-notify echo-message extended-join multi-prefix
server-time userhost-in-names znc.in/batch znc.in/self-message znc.in/server-time-iso

Multiline messages are sent sequentially, line by line, multiline is broken

## Goal Hi, since version `6.2.6`, Unrealircd (one of the major IRCd) enable the multiline support by default. But ZNC don't seems to permit to use it. ## Tests Without ZNC: ``` /cap ls irc: client capability, server supports: unrealircd.org/link-security=2 unrealircd.org/plaintext-policy=user=allow,oper=deny,server=deny unrealircd.org/history-storage=memory,disk=encrypted away-notify invite-notify extended-join userhost-in-names multi-prefix cap-notify sasl setname tls chghost account-notify message-tags batch server-time account-tag echo-message labeled-response draft/chathistory extended-monitor standard-replies no-implicit-names draft/no-implicit-names draft/extended-isupport draft/multiline=max-bytes=5250,max-lines=15 unrealircd.org/json-log unrealircd.org/json-log ``` - Multiline messages are sent as is to server and read as a multiline message With ZNC: ``` /cap ls irc: client capability, server supports: account-notify account-tag away-notify batch cap-notify echo-message extended-join multi-prefix server-time userhost-in-names znc.in/batch znc.in/self-message znc.in/server-time-iso ``` - Multiline messages are sent sequentially, line by line, multiline is broken

adam commented

2026-10-05 05:03:03 +02:00

Random drive-by-comment:

Google found https://ircv3.net/specs/extensions/multiline.

From that page:

This specification may change at any time and we do not recommend implementing it in a production environment.

Random drive-by-comment: Google found https://ircv3.net/specs/extensions/multiline. From that page: > This specification may change at any time and we do not recommend implementing it in a production environment. Does anyone know what the state of this extension is? The `Copyright © 2019` in there scares me and makes me think something is wrong. Why is this just a draft for seven years already?

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Reference: adam/znc#1097