The Mu editor releases are available on the Mu download page. At the time of writing, Mu does not natively support the micro:bit V2. If you want to test an updated or custom version of MicroPython with the latest micro:bit, you can do so in the following way:

  1. Flash the micro:bit with the version of MicroPython you want to test. For example, you can obtain the latest release from

  2. Click the REPL to communicate with the board directly via serial.

  3. To download a python file to the microbit, Click on Save and then click on the Files button.

  4. Copy from the Files on your computer to the Files on your micro:bit