RFC: Plugin Dependency Policies for django CMS Developers

Imagine you're building a customer portal. Customers sign in, manage their subscriptions, download invoices, update account details and interact with data from your product.

Then someone asks a perfectly reasonable question: "Can marketing edit the help pages?" You now need a CMS.

This release reduces friction across the whole project lifecycle: creating a new project, adding django CMS to an existing Django application, configuring larger deployments, controlling which plugins editors can use, and working with the CMS every day.

This release addresses three medium-severity security vulnerabilities and includes improvements to accessibility, Django compatibility, permissions, Content Security Policy support, and general editor stability.