Hi Sacha,
One remark from another subscriber: Aras can not prevent us from viewing the updated code and "comparing" it to the second instance.
Before this answer leaves a wrong impression. Despite my test systems, I do not have even have a second Aras instance yet! I have done this kind of comparison in the past to update my own and even Aras projects on Github.
The Aras Update team labels everything they change with an upgrade comment tag in the code. I am very grateful that they are doing it. This is useful if you want to check which code has been changed by the update. Especially when the new Aras version introduces a new style of coding (e.g. for Lists), this will help you to learn about it.
