Pantheon release notes

New: Debug Caching Issues - New troubleshooting guide to assist in resolving cache conflicts.

WordPress 5.5.3 is now available on the Pantheon platform. Detailed information on applying and debugging core updates can be found in the Core Updates documentation.

You can now create and launch Drupal 9 sites on Pantheon, now in Limited Availability. Composer is completely integrated so you can keep your sites up-to-date with one-click. For more information, see the Drupal 9 documentation.

Drupal 8.9.9 is now available on the Pantheon platform. This release fixes security vulnerabilities, and sites are urged to upgrade immediately. Detailed information on applying and debugging core updates can be found in the Core Updates documentation. For more information, see the Drupal 8.9.9 release notes.

Drupal 7.74 is now available on the Pantheon platform. This release fixes security vulnerabilities, and sites are urged to upgrade immediately. Detailed information on applying and debugging core updates can be found in the Core Updates documentation. For more information, see the Drupal 7.74 release notes.

New: Use WP Mail SMTP to Send Email with Sendgrid

New: Glossary - Glossary of frequently used terms.

We're looking for customer feedback on Drupal 9 adoption. In particular, we want to know about interest in using our upcoming Integrated Composer feature with Drupal 9. Share your thoughts here.

Drupal 8.9.7 is now available on the Pantheon platform. Detailed information on applying and debugging core updates can be found in the Core Updates documentation. For more information, see the Drupal 8.9.7 release notes.