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website/content/docs/ircv3.md

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IRCv3 capabilities

echoIRCd implements a broad set of IRCv3 capabilities. Clients negotiate them with CAP LS and CAP REQ.

Advertised capabilities

server-time        message-tags          account-tag          account-notify
extended-join      chghost               multi-prefix         away-notify
invite-notify      setname               echo-message         userhost-in-names
batch              labeled-response      standard-replies     extended-monitor
draft/chathistory  draft/event-playback  draft/message-redaction
draft/multiline    draft/metadata-2      draft/read-marker    draft/webpush
draft/account-registration               sts

Notable features

  • CHATHISTORY — replay recent conversation, with server-side storage.
  • labeled-response + batch — correlate replies to the command that caused them.
  • multiline — send a message that spans lines as a single logical message.
  • STS — advertise a strict-transport-security policy so clients upgrade to TLS.
  • draft/webpush — RFC 8291 / 8292 Web Push notifications for supporting clients.

SASL

SASL is a capability too — see Accounts & SASL for the supported mechanisms.