Some developers are seriously considering de-listing their games from online shops when the Unity Runtime Fee kicks off at the start of next year, meaning some titles built on Unity could end up being temporarily — or permanently — unavailable. Here's what developers are saying about the Unity Runtime Fee on social media, and what games could be impacted.
Unreal licensing is explicitly tied to the version you use. So if you use Unreal 5.3, you are bound to the license attached to the code for Unreal 5.3.
If that license changes in Unreal 5.4 and you disagree with the new license, you don’t need to follow the terms as long as you never move from Unreal 5.3.
Yeah, that sounds much more sane to me. With the Jetbrains IDE (my tools off the trade), you pay an annual subscription and when you stop paying you still get to use the last version you paid for. Apples to oranges, I know, but I sure did check that up front before I bought in to that ecosystem.