Hi moritz,

re:
> is this update suitable for my Mac or do I need a new OS version?

You will need a newer OS version, sorry. Apple doesn't really have any priority on compatibility to older releases, so it tends to be difficult to support older OS versions with newer build tools.

The ACIS library that MoI is now using will only run on 10.14 or higher, that's why Moi can't run on 10.13 or lower anymore.

- Michael