Actually, I think I can prove it! Let me try...
I have a site that is still on version 1.6.12. Let me prove that here...

Now I will take a screenshot of the Navbar. You will see there is nothing there.

Now I will update the site to version 1.7.3

and do nothing else, but will immediately take a screenshot of the Navbar. You see? The page appears in the Navbar automatically, after updating.

Now, I will confirm that Navbar is still definitely unchecked...

May we conclude quod erat demonstradum?