hexchat/hexchat — pull request #713 by Farow (2013-08-10 20:02:35+00:00)
Title: Make the channel key input larger

This will increase the amount of visible characters to 15 (from 3.5). An additional change was made to the limit of the characters in the input, which was increased to 23. I tested this on two networks (IRCHighWay and Rizon) and they both allow up to 23 characters for channel keys.