The old backend controllers are still working and just use the name system now. But they are marked as obsolete and some endpoints might be removed in future versions.
What it means: It is super easy now to create more of these jobs. I have refused to implement some feature requests, because the infrastructure was not there yet, but now we can easily implement tasks like:
Export everything to CSV / JSON
Apply default values over all content items or other migration steps.
There is a new method to apply the defaults. There was another feature request for that. Based on that, it should be super easy to write a new job and add a button for that somewhere in the UI.