The info banner on the top of the content part of doc.ez.no is currently saying:

This is the old documentation center for eZ Publish 4. We are currently migrating the eZ Publish documentation to http://confluence.ez.no the eZ Publish 5 documentation platform. Documentation for the eZ Publish legacy components are still located on this site, as well as all documentation for earlier releases.

Template holding this info should be updated to take this from content and have the following text:

You are now viewing the documentation of eZ Publish legacy (4.x series and the legacy "stack" in 5.x). For 5.x versions this documentation must be complemented with the latest, more current documentation available at https://confluence.ez.no. Happy learning!