mIRC is a full featured Internet Relay Chat client for Windows that can be used to communicate, share, play or work with others on IRC networks around the world, either in multi-user group conferences or in one-to-one private discussions.
It has a clean, practical interface that is highly configurable and supports features such as buddy lists, file transfers, multi-server connections, SSL encryption, proxy support, UTF-8 display, customizable sounds, spoken messages, tray notifications, message logging, and more.
mIRC also has a powerful scripting language that can be used both to automate mIRC and to create applications that perform a wide range of functions from network communications to playing games.
mIRC has been in development for over a decade and is constantly being improved and updated with new technologies.
Added SASL/NickServ support as a per server setting.
Added channel central support for +q quiet list.
Added "Control key enables mark/copy" option and the ability to copy single characters.
Added support for middle-click mouse button to close tabs in switchbar/treebar.
Added CAP support for extended-join, account-notify, away-notify, account-tag, invite-notify, and chghost.
Extended $com() to handle one dimensional single-byte array results.
Added sha256 fingerprint to server SSL certificate dialog.
Fixed if/while statement parsing bug.
Updated to OpenSSL 1.0.2k library.
Added /ialfill #channel command and extended $ial() identifier.
Extended /ialmark to allow setting multiple, arbitrary marks.
Fixed windows shutdown handling bug that prevented mIRC from saving settings correctly.
Extended $regsub() and $regsubex() to support output to a &binvar.
Changed sound-related routines to use DirectSound to play sounds.
Added "Create new certificate" button to SSL dialog that creates a new self-signed client certificate.
Added $sslcertsha1 and $sslcertsha256 identifiers that return fingerprint of currently loaded client certificate.
Added /drawsize @ <w h> that sets the bitmap size for picture windows.