If you've already changed your build system to Vite (a breaking change to any app started before Vite), and opted in to all current "future flags" (breaking changes), and multiple forthcoming future flags before 7.0, then you will have no breaking changes. And let's not forget its history, including the previous merge with Remix. The only lib moving even faster is Next. Both are highly focused on PR at the expense of accuracy and good faith.