'Can i migrate webpage using old react version to new version?

So the existing web is using old version of react, ajax etc. Customer accesses .../old_url.

My plan is like this

create new react project

<Switch>
   <Route path="/old_url">
     <Redirect to="old_url_to_old_react_app" />
   </Route>

   <Route path="/new_url">
     <MyNewComponent />
   </Route>
 </Switch>

flip the old/new url after testing

Any issues with this solution ?

reactjs

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'Can i migrate webpage using old react version to new version?

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