Currently Kdenlive manual is only available through docs.kdenlive.org. It is inconvenient in case there is no internet connection, and requiring it is not a good UX. At least a snapshot before the release should be bundled with Kdenlive, and it should be displayed instead if there is no connection. Ideally, the help content should be available through the Kdenlive interface, without the need to open a browser. The standard KDE help window should be used.
An offline copy of the documentation can be downloaded as epub from docs.kdenlive.org: https://docs.kdenlive.org/en/epub/KdenliveManual.epub But I agree that we should make it easily available with the releases
Another bug is that currently the epub download link on docs.kdenlive.org always points to the english version instead of redirecting to the active language version.
Also forgot to mention, but also the currently deprecated Handbook needs to be removed.