Changelog for update (added 04 December 2017):
[macOS Only]

- Installer maintenance update - No game files were changed.

Changelog for Patch 1.3.0 (added 24 July 2018):

- Hey, it's mostly a technical update, content-wise there have been only minor changes.
- The biggest part is the update from Unity 4.6 to Unity 2017.4 (there was a Unity 5 beta but never actually released) as well as many asset optimizations to reduce the game size.
- From the recently released mobile version of Feist we've also brought over touch support, so if you e.g. have a Windows tablet with multitouch input, you should now be able to play Feist with the new touch UI.
- Overall, we hope the new version runs better and more stable and has improved compatibility with newer operating systems.

On 27. Feb. 2021 Feist got an update of the offline installer to version 1.4 for Windows and macOS.

Unfortunately no changelog is present (at least I couldn't find one ;) and Linux is still missing.

So I reached out to the Devs (playfeist.net) on 17. April 2021 and asked about it.
If I would get any information, I will present it directly here ...

Does the game run on Apple Silicon (albiet using Rosetta 2)?