Version 3.9

The changes of this release are:

Added additional 'coin'/crypto project: Radiant.
Added the unit serial number in the communication with the GUI. The upgrade procedure will compare the unit serial nr. with the serial nr. in the upgrade file. This way, before the transfer starts it can already be determined if the unit will be able to process the file. Previously the file had to be transferred completely and only during the upgrade procedure on the unit will the problem be detected. Sending an invalid file to the unit will not break it, only the time spend in transferring the wrong file will be wasted.

The upgrade instructions are contained in : UPGRADE.md

This release requires that the hardware wallet runs version 3.5 or newer. If you haven't yet requested the upgrade file you can do so by sending a private message to the ARRR address you've used when you've purchased your hardware wallet.
Alternatively, if you do not want to upgrade your hardware wallet, you'll have to downgrade the GUI application to version 2.7.
You can do this by commanding GIT to revert to an older release. Enter the command in your git repository:
git checkout V2.7
You will have to recompile the project after the source code was altered.

To revert back to the head (top) of the branch, enter the command: git switch -