commit - d0f9d3d92e8f3f1d33ece89f751b01343b5e1141
commit + a38eea8987b32f3d17ae04eabdd9d114af57bd25
blob - 6b3cfbcf3892b0cefa098177ed65ad4c32ba5bfa
blob + b6ead9dfdbe5ef6078236dff1e1e60829a715413
--- doc/Protocol.txt
+++ doc/Protocol.txt
@@ -176,7 +176,7 @@ channel mode). In this case <limit> should be "0".
 II.4 Update webchat/proxy client information
 
      Command: WEBIRC
-  Parameters: <password> <username> <hostname> <ip-address>
+  Parameters: <password> <username> <hostname> <ip-address> [<ignored>]
      Used by: unregistered clients only
 
 The WEBIRC command is used by some Web-to-IRC gateways to set the correct
@@ -186,7 +186,10 @@ first command sent to the server, even before USER and
 The <password> must be set in the server configuration file to prevent
 unauthorized clients to fake their identity; it is an arbitrary string.
 
+Optionally, a 5th parameter is accepted to comply with an IRCv3 extension,
+see <https://github.com/ircv3/ircv3-ideas/issues/12>, but ignored.
 
+
 II.5 Client character encoding conversion
 
      Command: CHARCONV