I'm very sorry for the problems you've had migrating from the CTP build to the official build. You're right that we changed the architecture but we had to provide much more usable design-time when it comes to configuring DockPanels in design-mode. Now you don't need to make user controls in order to design DockPanels and place controls in them. You just configure your docking panels from the "Advanced Layout Designer" (as shown on these two screenshots: 1
) and then place controls inside the dock panels by drag & drop.
The official build from Thursday last week had a problem with persisting the changes done in design-time and that's why today we uploaded a new fixed build in which we have fixed all reported problems related to persistence.
We don't plan any new major changes neither in the docking control nor in the telerik WinForms architecture. We plan to update the documentation for SP1 to reflect the changes we've made during the last two weeks and which we have left either undocumented or documented poorly.