open a terminal window- -you can find an icon by the start menu lower left of the screen. its the last icon to the right so the fourth one, right after the folder icon.
hold down ctrl and shift and then tap the + button to enlarge the terminal window and the text in it so its easier to see.
then copy and paste the commands below but dont hit enter yet. you can only paste using right click > paste while you are in terminal. you can copy and execute more than one line of code, for example the next 4 lines can be copied and pasted together.
cd
rm reaper*.tar.xz
rm -rf reaper_linux_aarch64
wget https://www.reaper.fm/files/6.x/reaper668_linux_aarch64.tar.xz
make sure the version- -reaper668- -you are attempting to upgrade to is represented correctly in this filename:
reaper668_linux_aarch64.tar.xz
changing it if you have to before hitting enter. everything else can be left the same.
then run this command:
tar -Jxvf reaper*.tar.xz
then run this command:
cd reaper_linux_aarch64
then run this command:
sudo ./install-reaper.sh --install /opt --integrate-desktop --usr-local-bin-symlink --quiet