File arduino-cli-update-message.txt of Package arduino-cli

ATTENTION:
starting with version 0.27, arduino-cli does not search the
system locations for hardware packages anymore.

If you are upgrading from a version prior to 0.27 and want to use
the bundled arduino-core, use the following workaround:

  mkdir -p ~/.arduino15/packages
  ln -s /usr/lib64/arduino/hardware/suse-arduino ~/.arduino15/packages

Have a lot of fun...