documentation team has uploaded the javadocs and the tutorial information to the Update Center
and it is available through the Update Tool.
Paul describes the actions in his
If you want to check out the screenshots, check out:
Still some work to do to improve the flow of the experience, but this is moving in the right direction.
Attentive readers will notice: (a) There used to be a way to run the update tool within the admin console while the server was running, but that was not safe, so it was removed relatively late in the v3 cycle.
(b) The update center repository only has Volume 1 (basics) of the tutorial; we will push Volume 2 there "soon", in the meantime you can get it from here.