What's included in Drupal 10?

The following key features are in the works in Drupal 9 and will be included in Drupal 10:

• Claro administration theme (replacing Seven).
• Olivero default theme (replacing Bartik).
• Further improved Layout Builder and Media functionality.
• Better decoupled developer and site builder experiences, especially for menu and URL handling.
• Introduction of CKEditor 5 with better authoring experience and more modern editing (replacing CKEditor 4).
• Modern JavaScript components to replace some uses of jQuery.
• Theme Starterkit tools for bespoke theme creation.
• Symfony 6 under the hood (replacing Symfony 4) and PHP 8.1 are required to keep the system secure.