Update MacOS

The Sigilium plugin for MacOS is compatible with High Sierra (10.13) and higher (Mojave, Catalina...)

If you are using an older version of MacOS, you will need to update it, in order to use Sigilium

1. On the top left corner of your Mac, go to About this mac

2. Clic on Softwareupdate

3. Update the MacOS if needed (current is older than 10.13)