I'm lazy. So I sticked to xchat for way too long. It seems to be dead since 2010 but luckily some good souls maintain a fork called hexchat. That's what I moved myself to a few weeks ago.
Now looking at the Debian xchat package I feel the urgent need to fill a request for removal. Sine I'm not a member of QA I asked for some advice, but the feedback is a bit sparse so far.
Maybe everyone still using xchat could just switch to hexchat so we can remove xchat next year and nobody would notice it? The only obvious drawback I can see at the moment is the missing Tcl plugin. The rest of the migration is more or less reconfiguring everything to your preferences.