irc-U v2.61 was developed with mIRC v6.17 but I've been using it with mIRC v6.35 without any issues.
Of course, I'm not an operator to any channels now, therefore the use that I make is very basic.
I have developed a few more "features" that weren't included with the script. They are drones related (mostly scanning channels with the /who command and output results based upon several patterns).
As you might have guessed by now, I have stopped further development of the script (for some time now).
If anyone wishes to further develop the script, just drop me a line.
Also, if irc-U doesn't suit your needs, you can find scripts to http://www.mircscripts.org/, http://www.hawkee.com/snippets/cat/mirc/ or http://www.mircscripts.com.
I guess that IRC was/is just a phase. And besides this, time is limited and never enough...
Moreover, a lot of other "chat" applications have been developed, most of which are web based, such as facebook or Twitter.
IRC stands for Internet Relay Chat, as you all know and U stands for Undernet.
So this mIRC script, is made for Undernet, tested in Undernet and it is to be used in Undernet.
If you use it on any other Network(s), it will be at your risk and I will not be responsible for anything that happens.
Note that, irc-U does NOT support multiple network/server connections, since it's made for Undernet.
However, if for any reason you want to connect more than one time (on Undernet), copy the directory of irc-U (default is C:\irc-U) into another one, and use that one.
There are absolutely no backdoors or any other malicious things/scripts/commands.
To be sure of it, always get your copy at http://www.irc-U.org
irc-U comes with a lot of things, but not everything. There are things to be added or even to be fixed.
These will be made in the next version(s).
Check this site once in a while, for updates and/or fixes.
To report bugs, make suggestions or anything else, send an email.
And before you do that, please check the help file ;)