diff --git a/doc/initial.md b/doc/initial.md
index 48f6140..2f444fc 100644
--- a/doc/initial.md
+++ b/doc/initial.md
@@ -22,6 +22,7 @@ And then most clients will send:
 
 1. Set their nickname, server can show an error before connecting so the client can change the nickname before the connection is established.
 2. Set their username, modes (mostly unused by the IRCd), and real name
+3. Asks the server for [IRCv3 capablities](https://ircv3.net/specs/extensions/capability-negotiation.html) it supports on a specific version (in this case, most clients/servers have version 302)
 
 > [!CAUTION]
 > Since the realname can have spaces in it, it must be prefixed with a colon.