Pantheon release notes

Terminus 4.0.0 is now available. This release:

1. adds support for PHP 8.4,
2. removes support for PHP versions 8.1 and below,
3. improves interactive mode by prompting users for any missing required command parameters.

Terminus 4 is compatible with PHP 8.2 and 8.3 (see Supported Terminus and PHP versions). The PHP version refers to the local machine on which Terminus itself runs (e.g. developers' own computers or containers for continuous integration). This is distinct from PHP versions that run websites on Pantheon's infrastructure, which still include support for PHP 7.x.

For more information about this release, visit the GitHub release page.

How to upgrade to Terminus 4.x

If you use Homebrew (macOS-only) to manage your Terminus installation, you should upgrade using:

If you installed Terminus directly from the .phar file, you should upgrade using self:update command:

You can find more details about Terminus 4 in our documentation.

If you have questions or concerns around Terminus 4, please use the Terminus issue queue.

The New Relic PHP agent has been updated to the latest version, v11.8.0.22, for all eligible versions of PHP. Support for PHP 7.0 and 7.1 was removed in version 11.0, so the New Relic PHP agent for those versions remains at v10.22.0.12.

This update brings several enhancements and fixes compared to the previous version, including some fixes for Drupal errors and exception handling that may now surface some errors that previously were going unreported.

For a detailed list of all changes and improvements, see the complete New Relic PHP agent changelog.

Learn how New Relic's real-time performance monitoring can help you with metrics and reports on your Pantheon web applications.

Editorial note: As of May 8, 2025, this release note has been edited to no longer specify "newly created" sandbox sites - as this change now applies to all sandbox sites regardless of when the site was created.

Beginning May 6, 2025, sandbox sites will show an interstitial page when a visitor loads a page for the first time.

After clicking through this page, a cookie is set in the browser to prevent the interstitial page from showing again for the same visitor to the same environment for 24 hours.

This change is being made to discourage abuse of the sandbox sites for spam, phishing or other malicious purposes. It also clarifies for visitors that the site is not live, preventing potential confusion.

See related documentation to learn more about this change, including how to bypass the interstitial page for automated testing.

For questions or concerns, please reach out to Pantheon Support.

The latest version of WordPress, 6.8.1, is available on Pantheon as of April 30, 2025.

Action required

Upgrade to WordPress 6.8.1 right from your Pantheon dashboard or Terminus to access the latest features, fixes, and security enhancements. See related documentation for how to apply core updates.

Highlights

• 15 bugs throughout Core and the Block Editor.

For full details about WordPress 6.8.1, see the release notes

The Trust Center provides transparent access to Pantheon’s security controls, security policies, compliance certifications, and data privacy practices. These updates are part of our ongoing commitment to transparency and making it easier to access the information you need.

What’s included?

Publicly accessible information:

• Technical, security, and privacy FAQs.
• Descriptions of key security controls, covering areas like availability, change management, control environment, information and communication, logical access, system operations, risk assessment, and risk management.
• Table of contents for major security policies, including Access Control, Backups, Business Continuity Plan, Third Party Risk Management, and Overall Information Security.
• Voluntary Product Accessibility Template (VPAT) report.
• U.S. and U.K. Privacy Policies.
• Full list of Pantheon sub-processors.

Confidential documentation (available upon NDA completion):

• SOC 2 Type 2 report.
• TX-RAMP Level 1 certificate.
• Higher Education Community Vendor Assessment Toolkit (HECVAT) with responses.
• Full versions of key security and privacy policies.
• Most recent platform and network penetration testing results.
• Pantheon architecture diagram.

For more details, see the Trust Center.

Today we are releasing v1.0 of Pantheon Content Publisher's Drupal module - a new contrib module for Drupal sites. This new module replaces the previous module that was used by earlier participants of the private beta program.

What's new?

This release marks a complete redesign of the Drupal integration for Content Publisher, and offers new functionality:

• Manages content as standard Drupal entities, rather than relying on Drupal Views for rendering.
• Metadata fields are now converted into standard Drupal configured fields.
• Search API support has been added, allowing Content Publisher content to be searched by Drupal with blended results alongside other Drupal content.
• Smart Components from Google Docs get represented as fieldable Drupal entities.
• Increased reliability for real-time previews.
• Improved configuration panel.

Learn More

While this module is now available on Drupal.org, it still requires access to the private beta program in order to be leveraged.

• Request beta access
• Docs: Content Publisher for Drupal: Getting Started Guide
• Blog: Enhanced Drupal Integration for Content Publisher
• See the Content Publisher release notes for a more detailed history of changes

The latest version of WordPress, 6.8 (Cecil), is available on Pantheon as of April 15, 2025.

Action required

Upgrade to WordPress 6.8 right from your Pantheon dashboard or Terminus to access the latest features, fixes, and security enhancements. See related documentation for how to apply core updates.

Highlights

• Speculative loading, preloading pages for a faster user experience.
• Improved password security with bcrypt
• Improvements to the style book, editor, and more than 100 accessibility improvements
• ...and more

For full details about WordPress 6.8, see the release notes or the WordPress 6.8 Field Guide.

PHP version 8.3.20 is now available on the platform. This update bring the latest bug fixes and enhancements, improving performance and security for your sites. Updates will be applied automatically over the next few days, so no manual action is required.

Important PHP version information

• PHP 8.1 and 8.2 are currently receiving security-only updates.
• For more details, see the full list of PHP supported versions.

For the best performance and security, Pantheon recommends running PHP 8.2 and above.