Pantheon release notes: Drupal

The Pantheon Advanced Page Cache Module has received an update in the 2.2.0 release which resolves Issue #3337669 and provides some additional enhancements. Now, when any file is updated inside the Drupal File system, that file will have its edge cache cleared immediately and new content will be shown.

Some Technical Details:

• The cache clearing is specifically triggered by any action which invokes the update file hook.

• If the file is an image, all image styles will also have their edge cache entry cleared.

The latest version of Drupal 7, 7.100, became available on Pantheon as of March 8, 2024.

Highlights

• Announcements Module 7.100 includes the Annoucements module backported to Drupal 7. Please read the change record before updating if you do not want the module to be automatically enabled.
• PHP 8 Compatibility Bundled with Drupal 7's release is an update to Pantheon's Apache Solr module that fixes deprecation warnings with PHP 8.1+.
• Bug fixes and security hardening In addition to the Announcements module, the release includes a few bug fixes and feature improvements. No security fixes are included in this release. For full details, see the release notes on Drupal.org.

Upgrade your Drupal 7 site to Drupal 7.100 right from your Pantheon dashboard or Terminus.

Pantheon has seamlessly integrated the Drupal 7.99 release, packed with bug fixes and exciting feature enhancements.

Highlights

• Menu link enhancement: "Parent link" in new custom menu creation is now limited to the current menu, simplifying the process. Editing still allows access to links from other menus, enabling easy relocation.

• New Drupal 7 hook: Introduced a new “hook_field_schema_alter()”, providing additional flexibility for schema alterations.

• Security improvement for failed logins: Error messages after a failed login now include a password reset link without disclosing the username, enhancing security by preventing unintended disclosure to third-party services.

Elevate your Drupal 7 experience by applying these updates directly from your Pantheon dashboard. If you would like to delve into specifics of this release, please explore on drupal.org.

The Pantheon Drupal Starter Kit for Front-End Sites has undergone significant improvements.

• Setup experience: The setup process is now more user-friendly and guided for a seamless experience.
• Health check script: The newly introduced health check script alerts you to known configuration issues before a build fails.
• Front-End Sites settings: Effortlessly navigate through the Settings page, simplifying the testing of your preview endpoint, and allowing convenient copying of environment variables for use in the Front-End Sites Dashboard.

Curious about creating a new Drupal project with these enhancements? Find detailed instructions here.

For further insights and discussions on similar sites, join the #front-end-frameworks Slack channel.

On September 20th, Drupal core updates were released to address a critical vulnerability in the JSON:API module. Those updates became immediately available within the Pantheon dashboard for one-click code updates. Additionally, our engineers updated our CDN to mitigate potential attacks.

If you have a Drupal site using JSON:API we suggest you update as soon as possible if you haven't done so already. And even if you aren't using JSON:API, it'll still feel good to apply an update, right? To better understand the nature of security updates, come watch the Pantheon YouTube Livestream on October 25th.

Pantheon has pushed an update to WordPress and Drupal 7 core upstreams which sets PHP 8.1 as the new default PHP version, rather than 7.4.

Please test this core update thoroughly before deploying to the Live environment. If your site requires an older version of PHP, or if you'd like to upgrade to PHP 8.2, see Pantheon’s documentation on how to manage PHP versions via the pantheon.yml configuration file.

Drupal 7.98 is available on the Pantheon platform. Users may update their sites immediately. Detailed information on applying and debugging core updates can be found in the Core Updates documentation.

Drupal 9.5.3 is available for production sites and includes backwards-compatible improvements. Drupal 9 sites on Pantheon use Integrated Composer, enabling one-click core updates through the Dashboard.

Drupal 9.4.11 is available for production sites and includes backwards-compatible improvements. Drupal 9 sites on Pantheon use Integrated Composer, enabling one-click core updates through the Dashboard.

Drupal 10.0.3 is available for production sites. To learn more about creating a Drupal 10 site on Pantheon or updating a Drupal 9 site to Drupal 10, refer to our documentation.

Drupal 9.5.2 is available for production sites. This is a minor version (feature release) of Drupal 9. Drupal 9.5.x will receive security coverage until November 1, 2023 when Drupal 9 is end-of-life. Learn more about Drupal 9 and the Drupal core release cycle.

Drupal 9.4.9 is available for production sites. This is a patch (bugfix) release of Drupal 9 and is ready for use on production sites. Drupal 9.4.x will receive security coverage until June 2023 when Drupal 10.1.0 is released.

Drupal 10.0.2 is available for production sites. Drupal 10.0.x will receive security coverage until December 2023 when Drupal 10.2.0 is released.

Drupal 9.5.0 is available for production sites. This is the final minor version (feature release) of Drupal 9. Learn more about Drupal 9 and the Drupal core release cycle.

Drupal 9.4.9 is available for production sites. This is a patch (bugfix) release of Drupal 9 and is ready for use on production sites. Drupal 9.4.x will receive security coverage until June 2023 when Drupal 10.1.0 is released.

Drupal 10 is now available on the Pantheon platform and ready for use on production sites. Drupal 10.0.0 has been released simultaneously with Drupal 9.5.0.

Check out our documentation for more information on Creating a Drupal 10 site on Pantheon or Upgrading a Drupal 9 site to Drupal 10.

Drupal 9.4.8 is available for production sites. This is a patch (bugfix) release of Drupal 9 and is ready for use on production sites. Drupal 9.4.x will receive security coverage until June 2023 when Drupal 10.1.0 is released.

Drupal 9.3.22 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 9.3.x will receive security coverage until December 8, 2022 when Drupal 9.5.0 is released.

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 9.4.5 is available for production sites. This is a patch (bugfix) release of Drupal 9 and is ready for use on production sites. Drupal 9.4.x will receive security coverage until June 2023 when Drupal 10.1.0 is released.

Drupal 9.3.22 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 9.3.x will receive security coverage until December 8, 2022 when Drupal 9.5.0 is released.

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.

PHP 8.1 is now recommended for Drupal sites version 9.3.0 and higher. An underlying bug with ProxySQL was fixed in version 2.4.3 and PHP 8.1 was updated on the platform to incorporate this fix.

Drupal 9.4.5 is available for production sites. is available for production sites. This is a patch (bugfix) release of Drupal 9 and is ready for use on production sites.

Drupal 9.4.5 is available for production sites. This is a patch (bugfix) release of Drupal 9.4 and is ready for use on production sites. Drupal 9.4 was released in June 2022. Drupal 9.4 will receive security coverage until June 21, 2023 when Drupal 9.6.0 is released.

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 9.3.21 is available and includes backwards-compatible improvements. This is a patch version of Drupal 9.3 and is available for use on production sites. 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 9.3 will receive security coverage until December 8, 2022 when Drupal 9.5.0 is released.

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 9.4.1 is available for production sites. This is a patch (bugfix) release of Drupal 9 and is ready for use on production sites.

Drupal 9.3.17 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 9.3.x will receive security coverage until December 8, 2022 when Drupal 9.5.0 is released.

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

Drupal 9.3.14 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's Dashboard Dev tab.

Drupal 9.2.20 is available and includes backwards-compatible improvements. This is a minor version of Drupal 9 and is available for use on production sites.

Drupal 9.3.12 is available for production sites and includes backwards-compatible improvements. Drupal 9.3 was released in December 2021. For 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's Dashboard Dev tab.

Drupal 9.2.18 is available and includes backwards-compatible improvements. This is a minor version of Drupal 9 and is available for use on production sites.

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.

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.

Drupal 9.3.3 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 9.2.11 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.

Drupal 9 is in General Availability! It is available on Pantheon to all new sites, and is available as an upgrade path from Drupal 8 with Integrated Composer. For more information, refer to the documentation.

Drupal 9.2.8 is now available for production sites. 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.x will receive security coverage until June 15, 2022. Sites on 9.1.x or earlier should update to Drupal 9.1.13.

Drupal 8.9.20 is now available on the Pantheon platform. Detailed information on applying and debugging core updates can be found in the Core Updates documentation. Customers still using Drupal 8 on the Pantheon platform are strongly encouraged to upgrade to Drupal 9. Refer to the upgrade documentation for more information.

Drupal 9.2.7 is now available for production sites. 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.x will receive security coverage until June 15, 2022. Sites on 9.1.x or earlier should update to Drupal 9.1.13.

Drupal 9.2.6 is now available for production sites. 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.x will receive security coverage until June 15, 2022. Sites on 9.1.x or earlier should update to Drupal 9.1.13.

Drupal 8.9.19 is now available on the Pantheon platform. Detailed information on applying and debugging core updates can be found in the Core Updates documentation.

Drupal 9.2.3 is now available for production sites. 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.x will receive security coverage until June 15, 2022. Sites on 9.1.x or earlier should update to Drupal 9.1.11.

Drupal 8.9.18 is now available on the Pantheon platform. Detailed information on applying and debugging core updates can be found in the Core Updates documentation.

Drupal 7.82 is now available on the Pantheon platform. Pantheon is committed to providing Drupal 7 extended support for all customers through 2025, past Drupal 7’s end of life in 2022.

Drupal 9.2.2 is now available for production sites. 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.x will receive security coverage until June 15, 2022. Sites on 9.1.x or earlier should update to Drupal 9.1.11.

Drupal 8.9.17 is now available on the Pantheon platform. Detailed information on applying and debugging core updates can be found in the Core Updates documentation.

Drupal 7.82 is now available on the Pantheon platform. Pantheon is committed to providing Drupal 7 extended support for all customers through 2025, past Drupal 7’s end of life in 2022.

Drupal 9.2.0 is now available for production sites. 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 8.9.16 is now available on the Pantheon platform. Detailed information on applying and debugging core updates can be found in the Core Updates documentation.

Drupal 7.81 is now available on the Pantheon platform. Pantheon is committed to providing Drupal 7 extended support for all customers through 2025, past Drupal 7’s end of life in 2022.

Drupal 9.1.8 is now available for production sites. 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 8.9.15 is now available on the Pantheon platform. Detailed information on applying and debugging core updates can be found in the Core Updates documentation documentation.

Drupal 9.1.7 is now available on the Pantheon platform. This release fixes security vulnerabilities, and users are urged to upgrade their sites immediately. Detailed information on applying and debugging core updates can be found in the Integrated Composer One-Click Updates documentation. For more information, see the Drupal 9.1.7 release notes.

Drupal 8.9.14 is now available on the Pantheon platform. This release fixes security vulnerabilities, and users are urged to upgrade their sites immediately. Detailed information on applying and debugging core updates can be found in the Core Updates documentation documentation. For more information, see the Drupal 8.9.14 release notes.

Drupal 7.80 is now available on the Pantheon platform. This release fixes security vulnerabilities, and users are urged to upgrade their sites immediately. Detailed information on applying and debugging core updates can be found in the Core Updates documentation documentation. For more information, see the Drupal 7.80 release notes.

Convert your Pantheon-hosted Drupal 8 sites to Drupal 9 with Integrated Composer, using the Drupal 8 to 9 Conversion Guide. Integrated Composer helps keep your Drupal 9 repository lean, avoid build artifacts on the main branch, and keep the one-click updates for both upstream commits & Composer dependencies that you have come to know and love with Pantheon.

Create and launch Drupal 9 sites on Pantheon with Integrated Composer. Keep your Drupal 9 repository lean, avoid build artifacts on the main branch, and keep the one-click updates for both upstream commits & Composer dependencies that you have come to know and love with Pantheon.

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 8.9.13 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 8.9.13 release notes.

Drupal 7.78 is now available on the Pantheon platform. This release fixes security vulnerabilities, and users are urged to upgrade their sites immediately. Detailed information on applying and debugging core updates can be found in the Core Updates documentation. For more information, see the Drupal 7.78 release notes.

You can now create and launch Drupal 9 sites on Pantheon with Integrated Composer, 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 8.9.11 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 8.9.11 release notes.

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.

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.

Drupal 9 is available for early access testing with new or existing sites. Now we’ve made that even easier, with a new Terminus Drupal 9 Multidev script.

Note: Drupal 9 is not yet ready for production use on Pantheon.

Drupal 8.9.6 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 8.9.6 release notes.

Drupal 8.8.10 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 8.8.10 release notes.

Drupal 7.73 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 7.73 release notes.

Drupal 9 is available for early access testing with new or existing sites. We don't recommend fully switching a live site to Drupal 9 until we have upgraded our version of MariaDB.

Drupal 8.9.3 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 8.9.3 release notes.

Drupal 9 is available for early access testing with new or existing sites. We don't recommend fully switching a live site to Drupal 9 until we have upgraded our version of MariaDB.

Drupal 8.9.2 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 8.9.2 release notes.

Drupal 9 was released last month on drupal.org. Pantheon Co-Founder Matthew Cheney wrote on our blog about the significance of this release for the Drupal community.

Drupal 8.9.1, Drupal 8.8.8, and Drupal 7.72 are now available on the Pantheon platform. These are security releases; all sites are urged to update as soon as possible. Detailed information on applying and debugging core updates can be found in the Core Updates documentation. For more information, see the Drupal 8.9.1, Drupal 8.8.8, and Drupal 7.72 release notes.

Drupal 9.0.0 is coming soon! If you want to try out Drupal 9 on Pantheon now, check out our Early Access doc where we have instructions for testing with Build Tools or Integrated Composer.

Drupal 8.8.6 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 8.8.6 release notes.

Drupal 7.70 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 7.70 release notes.

You don’t have to wait until June to give Drupal 9 a whirl! Pantheon is offering early access to test out Pantheon’s new Integrated Composer support. Visit the Community Forum for details. Why worry about running composer install when our platform can do that for you as part of a build step.

Drupal 8.8.5 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 8.8.5 release notes.

Drupal 8.8.4 is now available platform-wide. Detailed information on applying and debugging core updates can be found in the Core Updates documentation. For more information, see the Drupal 8.8.4 release notes.

Drush 10 is now supported on Pantheon. For more information, see the Drush Docs.

Drupal 8.8.2 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 8.8.2 release notes.

Drush 8.3.2 is available on the Pantheon platform. For more information, visit the Drush Docs.

Terminus now runs the version of Drush or WP-CLI installed in a site’s codebase via Composer, rather than the platform-wide version installed by Pantheon.

Update to Drupal 8.8.1 is available to apply as a 1-click update on Pantheon site dashboards.

Update to Drupal 7.69 is available to apply as a 1-click update on Pantheon site dashboards.

Special Note on Updating to Drupal 8.8.x

If you have a Drupal 8.7.x site based on the example-drops-8-composer upstream, or with a manually modified CONFIG_SYNC_DIRECTORY, manually update settings.php before upgrading to Drupal 8.8.x. For details, see Configuring Settings.php

Update to Drupal 8.7.10 is available to apply as a 1-click update on Pantheon site dashboards.

Update to Drupal 8.7.8 is available to apply as a 1-click update on Pantheon site dashboards.

Drupal 8.7.7 is available to apply as a 1-click update on Pantheon site dashboards.

Drupal 8.7.6 is available to apply as a 1-click update on Pantheon site dashboards.

Drupal 8.7.5 is available to apply as a 1-click update on Pantheon site dashboards.

Drupal 8.7.3 and 8.6.17 are available to apply as 1-click updates on Pantheon site dashboards.

Drupal 8.7.2 and 7.67 are available to apply as 1-click updates on Pantheon site dashboards.

PHP 7.3 is the new default for Drupal 8 and WordPress sites. Apply the 1-click update on the Pantheon site dashboard to upgrade. For more information see Faster WordPress & Drupal 8 sites with PHP 7.3 by Default.

Drupal 8.7.0 and 7.66 are available to apply as 1-click updates on Pantheon site dashboards.

Drupal 8.6.13 and 7.65 have been pushed to all Drupal Site Dashboards.

Pantheon has released Drupal 8.6.10, Drupal 7.64, and WordPress 5.1 on the platform. For information on applying the updates see WordPress and Drupal Core Updates.

Pantheon has released Drupal 8.6.7, Drupal 7.63, and WordPress 5.0.3 on the platform. For information on applying the updates see WordPress and Drupal Core Updates.

Pantheon has released Drupal 8.6.5 and WordPress 5.0.2 on the platform. For information on applying the updates see WordPress and Drupal Core Updates.

Pantheon has released Drupal 8.6.3 and Drupal 7.61 on the platform. For information on applying the updates see WordPress and Drupal Core Updates.

Updated to Drupal 8.6.2. For more information, see https://www.drupal.org/project/drupal/releases/8.6.2

Updated to Drupal 7.60. For more information, see https://www.drupal.org/project/drupal/releases/7.60

Fixed an issue where image derivatives (ImageCache, image styles) were not generating successfully in Drupal maintenance mode.

Update to Drupal 8.6.1. For more information, see https://www.drupal.org/project/drupal/releases/8.6.1.

Drupal 8 and WordPress now default to PHP 7.2, while Drupal 7 defaults to PHP 7.1. For details see https://pantheon.io/blog/speed-your-site-php-72/.

Drupal has been updated to version 8.5.6. For more information, see https://www.drupal.org/project/drupal/releases/8.5.6.

Update to PHP 7.1. For details see https://pantheon.io/blog/speed-your-site-php-72/.

Pantheon has released Drupal 8.5.5 on the platform. For more information, see https://www.drupal.org/project/drupal/releases/8.5.5

Drupal 8.5.3 has been pushed to all Drupal 8 site dashboards. This release is classified as a security release and all users are urged to upgrade their sites as soon as possible.

Drupal 7.59 has been pushed to all Drupal 7 site dashboards. This release is classified as a security release and all users are urged to upgrade their sites as soon as possible.

Drupal 6.44 has been pushed to all Drupal 7 site dashboards. This release is classified as a security release and all users are urged to upgrade their sites as soon as possible.

Drupal 8.5.1 has been pushed to all Drupal 8 site dashboards. This release is classified as a security release and all users are urged to upgrade their sites as soon as possible.

Drupal 7.58 has been pushed to all Drupal 7 site dashboards. This release is classified as a security release and all users are urged to upgrade their sites as soon as possible.

Drupal 6.40 has been pushed to all Drupal 7 site dashboards. This release is classified as a security release and all users are urged to upgrade their sites as soon as possible.

Drupal 8.4.5, a security release, has been pushed to all Drupal 8 site dashboards.

Drupal 7.57, a security release, has been pushed to all Drupal 7 site dashboards. This release is classified as a security release and all users are urged to upgrade their sites as soon as possible.

We've upgraded Registry Rebuild on Pantheon to 7.x-2.5. For details on using this Drush extension, see Drupal Drush Command-Line Utility.

Drupal 8 sites now support Launch Check, found in the Status tab of any environment, to report best practice recommendations before going live. For more details, see Launch Check - Drupal Performance and Configuration Analysis.

Drupal 8.4.4 has been pushed to all Drupal 8 site dashboards.

Drupal 8.4.3 has been pushed to all Drupal 8 site dashboards.

Drupal 8.4.2 has been pushed to all Drupal 8 site dashboards.

Drupal 8.3.7 has been pushed to all Drupal 8 site dashboards.

Drupal 8.3.5 has been pushed to all Drupal Site Dashboards.

We fixed an issue in our Nginx web server configuration that causes infinite redirect loops.

Drupal 8.3.4, Drupal 7.56, and WordPress 4.8 have been pushed to all Site Dashboards.

Drupal 8.3.3 and above hooks into the Pantheon service provider, to support operations such as clearing Pantheon’s edge cache when Drupal cache is rebuilt.

Drupal 8.3.2 and Drupal 8.3.2-p2 have been pushed to all Drupal Site Dashboards. These updates contain bug fixes and improvements from Drupal.org in addition to optimizing Pantheon’s handling of Twig cache files.

Drupal 8.3.1 has been pushed to all Drupal Site Dashboards. This update contains security patches, and it’s strongly recommended that you upgrade immediately.

Drupal 8.2.7 has been pushed to all Pantheon Dashboards.

Drupal 8.2.6 and Drupal 7.54 releases have been pushed to all Pantheon dashboards.

This is a minor version update, which nonetheless closes several dozen issues. See Drupal’s Release Page for more information.

Drupal 8.2.4 and Drupal 7.53 releases have been pushed to all Pantheon Dashboards.

Drupal 8.2.3 and Drupal 7.52 releases have been pushed to all Pantheon Dashboards which include maintenance and security fixes. Learn more.

At Pantheon, we are committed to helping our customers operate their Drupal 6 sites for as long as they are needed. We have selected two Long Term Support (LTS) partners to assist customers seeking to move their Drupal 6 sites to Pantheon. Read more about it in Lauren Kelly's blog post.

There were multiple releases of Drupal contributed modules that fix highly critical remote code execution vulnerabilities. The Drupal Security Team urges you to update the modules immediately. See more information on Drupal.org.

Previously, existing Drupal 8 sites had to be manually imported to Pantheon. Now, you are able to use the Importer tool on your Pantheon Dashboard.

You can now take your Drupal 8 sites live on Pantheon. Create your Drupal 8](https://pantheon.io/drupal-8) site today.

All new Drupal 7 sites will automatically default to run on PHP 5.5.

Previously, for sites on PHP 5.5 (WordPress sites default, Drupal sites can upgrade now), code changes were only refreshed every 60 seconds, regardless of the environment. Now, Dev/Multidev environments on 5.5 will immediately see code changes, and Test/Live now refresh every 2 seconds.

Greg Anderson created scripts and example repos to automate your builds using a composer-based workflow. Check out CI scripts, Travis CI scripts, and this exciting pull request in our Drops-7 repository.

Not on Pantheon? Get a free Drupal cloud backup! Learn more about the NodeSquirrel acquisition in Zack's blog post.

There was a Drupal update pushed to all Pantheon Dashboards to fix minor security issues. For more details see Drupal 7.35 and Drupal 6.35 announcement.

Drupal 8 Beta 7 is available for free on Pantheon. You can check out our issue tracker on GitHub, and read more on Drupal.org.