WeeChat is a light, fast, multilingual, curses-based multiplatform IRC client.

WeeChat supports:
    DCC files and chats, multi-server connections, background connections,
    IPv6, SSL, proxy, auto-reconnection, DCC2, nicklist, window splitting,
    FIFO pipe for remote control, Aspell, JavaScript, Perl, Python, Ruby,
    nick auto-completion, lag indication, auto-logging and client upgrades
    without dropping connections.

WeeChat will be built with support for Perl, Python and Ruby scripting.