The page for Release Notes for 420 – when navigated to from the navigation buttons at the bottom – is in a standalone directory instead of being part of release-note. This has caused the Previous and Next buttons to disappear and has left the sidebar collection broken and outdated:
It is currently:
When it should be:
The correction is a valid page on the site, the pages just don’t directly link to it (except for the Release Note index), and it has no navigation buttons as well.