Info here @maxipuchar :
To update simply download and run the patch.
(Put “update-OS-v2.1” dir ON the USB stick inside PATCHES dir, then on the Organelle select that patch )
You will be prompted to press Aux button to start update. The Organelle shuts down after the update and you will have re-apply power.
Select Info in the System menu and it should say version 2.1
Hope this helps