mIRC 7.86 – Internet Relay Chat

mIRC is a full featured Internet Relay Chat client for Windows. You can use it 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.

Serving the Internet community  for over a decade, mIRC has evolved into a powerful, reliable and fun piece of technology.

It has a clean, practical interface that is highly configurable and supports many features. Such as buddy lists, file transfers, multi-server connections, IPv6, SSL encryption, proxy support, UTF-8 display, UPnP. Also it has customizable sounds, spoken messages, tray notifications, message logging, and more.

mIRC also has a powerful scripting language. You can use it both to automate mIRC and to create applications that perform a wide range of functions from network communications to playing games.

This application has been in development for over two decades and is constantly being improved and updated with new technologies.

Release Notes

What’s New in version 7.86 (October 29, 2026):

• Fixed Server dialog bug when parsing ws:/wss: prefixed sockets.
• Fixed timestamp bug where timestamps were not being displayed for some events.
• Added per server settings to toggle various IRCv3 options.
• Fixed color palette dialog editbox bug.
• Fixed IRCv3 +reply handling bug.
• Fixed About dialog memory leaks.
• Fixed MAPM / Big Float library memory leaks and incorrect results.
• Updated libraries to OpenSSL v3.5.9, UTF8-CPP v4.2.1, LibZip v1.12.1, and ADA IDNA v0.7.0.
• Updated CA root certificates cacert.pem file.

What’s New in version 7.85 (September 9, 2026):

• Added support for WebSocket connections.
• Updated all dialogs to use the default Windows GUI font under Windows 10/11.
• Added support for Windows 10/11 Text Size scaling/settings for the GUI and dialogs.
• Changed STS support to allow previously accepted invalid certificate.
• Added support for IRCv3 extban/accountextban, context-chan, and +reply tokens/events.
• Fixed custom dialog optional text triggering editbox events.
• Fixed display/handling of numerics relating to whois, away, and ban list.
• Updated libraries to OpenSSL v3.5.8, TagLib v2.3.2, and UTF8-CPP v4.2.0.
• Updated CA root certificates cacert.pem file.

What’s New in version 7.84 (June 23, 2026):

• Added custom dialog editbox option ‘optional’ for grayed out optional text.
• Fixed DirectShow temporary wave file not being deleted on exit.
• Changed $urlget() to retry a connection without compression in the event of an error.
• Updated code signing certificate to use Azure Artifact Signing.
• Fixed menubar display bug when in dark mode.
• Fixed /server -a not preserving existing entry’s codepage.
• Fixed Address Book nick colors “idle time” display bug.
• Changed installer to no longer require administrator access on startup.
• Added support for displaying an MDI window’s System menu when right-clicking its titlebar.
• Updated libararies to OpenSSL v3.5.7, TagLib v2.2.1, Zlib v1.3.2, and ADA v0.5.5.
• Updated CA root certificates cacert.pem file.

Homepage – https://www.mirc.com

Supported Operating Systems: Windows XP, Vista, 7, 8, 8.1, 10, 11.

Size: 4.31 MB

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