once we release Final, the development updatesite actually contains final and not the latest CR1 so there is a mismatch between website and reality

Suggestion:
Add "marker" to latest_development in products.yml that will add an alert
to the latest active development download that the updatesite actually has stable.

actualcontent: 4.1.0.Final

Would give something like:

Info: 4.1.0.Final have been released and is what you will get when installing from the development update site.