Pantheon release notes

Governance for WordPress Multisites - Multisite governance allows for increased efficiency for teams, by ensuring that roles and responsibilities are defined. For more information, refer to the documentation

Automate and Integrate your WebOps Workflow with Quicksilver - Hook into platform workflows to automate your Pantheon WebOps workflow and tell Pantheon which script you want to run. The platform will run the script automatically every time you or another team member triggers the corresponding workflow. You can use Terminus to install Quicksilver Composer scripts if you have a Composer-managed site. To learn more, refer to the documentation.

Drupal 9.3.9 is available for production sites and includes backwards-compatible improvements. Drupal 9.3 was released in December 2021. From Drupal 9.3, PHP version 8.0 or higher is recommended; PHP 7.3 and higher remains supported. Drupal 9 sites on Pantheon use Integrated Composer, enabling one-click core updates through the Dashboard. To check for available updates, click Check Now from the site Dashboard Dev tab.

Drupal 9.2.16 is available and includes backwards-compatible improvements. This is a minor version of Drupal 9 and is available for use on production sites.

Cron for WordPress - Pantheon Cron now runs WP-Cron as an hourly task or on demand using WP-CLI with Terminus. Using the WP-CLI to run cron jobs on WordPress sites improves overall site performance and reduces the processing overhead for scheduling requests. To learn more about Pantheon Cron, refer to our documentation.

Edge Integrations - Pantheon leverages integration between the CMS and our Global CDN with Edge Computing capabilities to deliver the right content to the right audience directly, and with fewer moving parts. Edge Integrations is a Software Development Kit (SDK) that allows users to personalize WordPress and Drupal on the Pantheon platform. For more information on Edge Integrations, refer to our documentation.

WordPress 5.9.1 is a maintenance release that is currently available on the Pantheon platform. This maintenance release features 82 bug fixes on both Core and the Block editor. Detailed information on applying and debugging core updates can be found in the Core Updates documentation.

Drupal 9.3.6 is available for production sites and includes backwards-compatible improvements. Drupal 9.3 was released in December 2021. From Drupal 9.3, PHP version 8.0 or higher is recommended; PHP 7.3 and higher remains supported. Drupal 9 sites on Pantheon use Integrated Composer, enabling one-click core updates through the Dashboard. To check for available updates, click Check Now from the site Dashboard Dev tab.

Drupal 9.2.13 is available and includes backwards-compatible improvements. This is a minor version (feature release) of Drupal 9 and is available for use on production sites.

Convert an Empty Upstream Drupal Site to a Composer Managed Site - Convert an empty upstream Drupal 9 site to use Composer to manage deployments and dependencies. You can then switch from empty to the new Integrated Composer drupal-recommended upstream while remaining on Drupal 9. To convert, ensure your site has the Pantheon empty repository in its upstream. For more information, refer to our documentation.

Managing Drush Versions on Pantheon - Pantheon currently supports Drush versions 8, 10, and 11. For sites that are managed by Composer, a site-local installation of Drush is recommended. To learn about Pantheon's default Drush version, compatibility, requirements, and how to implement site-local usage, refer to our documentation.