New major release of DKAN. Switches to using properly-namespaced submodules and removes many deprecated pieces of code.
Note that when you run database updates, your form display settings for "data" nodes will be reset. If you've customized them to be different from what DKAN 2.x's defaults were, these settings will be overwritten. So make sure you re-import core.entity_form_display.node.data.default.yml if you have it exported to your project's config folder, or recreate your settings manually in the Drupal content type UI.