With the introduction of the dialog "Folder Properties" a new REST API has been introduced for managing group and content permission via rules. Content.ts and Group.ts support the method getRules now. It returns a remote bean which contains a list of rule remote beans. These ones are displayed either in the Folder Properties dialog or on the rule tab of a user managers group tab.

The former implementation of rule customization based on plain JSON is gone. Therefore this ticket has been marked as breaking change.

(CMS-20732)