CKEditor 4 reached its End of Life (EOL) in June 2023. From then on, it will receive no more updates, new features, bug fixes, and security patches. Visit CKEditor 5 Docs for the actively supported CKEditor or check Extended Support Model.
This is a simplified version of the CKEDITOR.filter.allowedContentRules type.
Only the string format and object format are accepted. Required properties
are not allowed in this format.