Winbox 312 -

Although MikroTik generally encourages using the latest version (currently v3.43 or v4.x beta), Winbox 3.12 is still sought after for specific legacy compatibility or stability requirements.

If you are still running 3.12 or looking to download it for specific needs, keep these best practices in mind: WinBox - RouterOS - MikroTik Documentation winbox 312