The documentation is not up to date. It will be updated after the first release!
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/server <hostname>
Connect to a server with the given hostname.
/join <channel>
Join a channel if connected.
/me <action>
/quit [<reason>]
Quit from the server with an optional reason.
/op <nick>
Give operator status to someone.
/deop <nick>
Take operator status from someone.
/kick <nick> [<reason>]
Kick someone from the channel with an optional reason.
/clear
Clear the chat window.
/nick <newnick>
Change your current nickname.