Will Xcode 15 modify an existing project so it won't be able to load in previous versions?

I mean, I get that converting to the new string assets and such will make incompatible changes but what if I use it without using those kind of things? Just editing previous Xcode 14 projects. Will Xcode 15 change the project file, xibs, etc in a way that Xcode 14 will not be able to understand? I'm working in a big project with many developers but I believe the bookmarks feature would be a great help for my work.