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You can find the update notes there and they mention what was changed and in what files and the area.
There are a few extra changes because this was an opportunity to quickly add some more polish while addressing the sticky tool tip and drag window bugs.
I don’t expect to make updates to the core system moving forward unless changes with new engine versions demand them.
The demo content will receive updates and enhancements overtime if there are changes that will benefit everyone. More specific changes would be tutorials or videos demonstrating how to do it yourself.
I will document any changes moving forward even more thoroughly than I did in this update. That way if something is changed you will have exact knowledge of what was altered and can easily integrate the change.