The main reason to rebuild the modules is when you yourself have changed them, or added a new one.
But I suppose that if there were a flaw in the old XCode compiler that was fixed in the new then recompiling the existing mods may be useful.
But most of the time you do not need to rebuild.
But I suppose that if there were a flaw in the old XCode compiler that was fixed in the new then recompiling the existing mods may be useful.
But most of the time you do not need to rebuild.