We have moved!
You are currently looking at documentation for Umbraco 8 and older versions.
An automated guess is that docs.umbraco.com/umbraco-cms/fundamentals/ could be the link to the new documentation for Umbraco 9 and newer versions.
All the fundamentals of using Umbraco. From making a local installation to extending the backend.
Umbraco comes with a lot of new big features, as well as a long list of general improvements to the CMS in general.
Learn more about the features in Umbraco v8.