Modules

Config UI for CKEditor Templates (v4) a

Embed iframes in CKEditor.

Additional attributes get stripped.

Configure CKEditor.

Provides CKEditor description elements (dl, dd, dt) plugin.

Attach libraries to content using a filter.

Define css selectors or xpath in the libraries file to determine whether the library should apply.

Create libraries in the UI to attach to pages with visibility rules.

Advanced asset aggregation, lots of additional tools.

Attach a library to an entity via a field.

Here is the Quick list interface, to search for a library.

Automated code updates.

CKEditor 4.

Use this on Drupal 10 for backwards compatibility.