Hi Guix, I tried to download the new version of Musescore, Version 4 Even thought 100 % available, it wanted to build it locally, but failed. (takes 75 minutes) I tried it again, it failed. next day I tried it again, it failed. I checked the Musescore Forum etc and there are big problems with the new Musescore 4 in Linux. Several people complained. How can I now keep the Version 3.6.2 and additionally install the new version 4.0 in future, so that my current version 3.6.2 does not get lost. The new version 4.0 needs improvements. Kind regards Gottfried