→macOS: Homebrew just repackages our Gramps.app.
Normally, when you try to load your old Family Tree you can allow it to be upgraded if necessary, and it will be opened. Should this fail for any reason, '''Create''' a new Family Tree and [[How_to_restore_a_backup|'''Import''' the back-up]] into this new Tree.
=== Alternative independent installation ===
Alternatively, Gramps can also be installed on macOS using
either the MacPorts or Homebrew package manager systems.