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...
![001](https://sas.vc/images/001.jpg)
Now I will take a screenshot of the Navbar. You will see there is nothing there.
![002](https://sas.vc/images/002.jpg)
Now I will update the site to version 1.7.3
![003](https://sas.vc/images/003.jpg)
and do nothing else, but will immediately take a screenshot of the Navbar. You see? The page appears in the Navbar automatically, after updating.
![004](https://sas.vc/images/004.jpg)
Now, I will confirm that Navbar is still definitely unchecked...
![005](https://sas.vc/images/005.jpg)
May we conclude quod erat demonstradum?