PHP versions 8.2.32, 8.3.32, 8.4.23, and 8.5.8 are now available on the platform. These updates include important security fixes, along with bug fixes and enhancements that improve performance and stability. Updates will be applied automatically over the next few days, so no manual action is required.
PHP versions 8.4.22 and 8.5.7 are now available on the platform. PHP 8.5.7 includes security fixes (CVE-2026-44927, CVE-2026-44928) along with bug fixes. PHP 8.4.22 is a maintenance release with bug fixes and stability improvements. Updates will be applied automatically over the next few days, so no manual action is required.
Setting tika_version: 1 in pantheon.yml is now rejected at validation time. Sites with this setting will receive a validation error on their next commit:
Tika 1.18 and 1.21 were removed from the platform on April 28, 2026. Since that date, tika_version: 1 was silently ignored and sites automatically used Tika 3. This change formalizes the rejection so that sites receive a clear error instead of a silent fallback.
Update your pantheon.yml to use a supported value:
Or remove the tika_version setting entirely if your site does not use Tika. To explicitly disable Tika, set tika_version: none.
For Tika 3 configuration details, including how to disable OCR, see External Libraries: Apache Tika.
Today Pantheon announces a removal schedule for Solr 3 on February 9, 2027 and Solr 8 on July 11, 2027. Solr 9 will reach General Availability on June 30, 2026 ahead of these removals.
After a Solr version is removed from the platform, sites using that version will no longer be able to index content or return search results. Views, blocks, or other components that rely on Solr-powered search indexes may return no results or throw errors.
Solr 9 has been available as a Beta for Drupal 10 and 11 sites through search_api_pantheon version 8.5.0-beta1. Solr 9 Beta for Drupal 7 is now available as of May 12, 2026.
General Availability for Solr 9 is targeted for June 30, 2026.
Solr 3 will be removed from the Pantheon platform on February 9, 2027. Solr 3 is a legacy search version that no longer receives security updates.
Previous milestones:
Drupal 7 sites still using Solr 3 must migrate to Solr 9 before this date. See the Solr for Drupal 7 guide for upgrade steps. WordPress sites should migrate to Elasticsearch or another supported search solution before January 11, 2027.
Solr 8 (8.11.4) will be removed from the platform on July 11, 2027. Solr 9 supersedes Solr 8 with improved security defaults and other enhancements. Drupal 10 and 11 sites currently running Solr 8 should migrate to Solr 9 before this date. Upgrade instructions are available in the Solr 9 Beta announcement.
Drupal:
For guidance on upgrading, see Drupal Solr.
WordPress:
PHP versions 8.2.31, 8.3.31, 8.4.21, and 8.5.6 are now available on the platform. These updates include important security fixes, along with bug fixes and enhancements that improve performance and stability. Updates will be applied automatically over the next few days, so no manual action is required.
PHP 7.2, 7.3, and 8.0 have reached End of Sale on the Pantheon platform. New sites can no longer be created using these PHP versions.
This was previously announced in the PHP version removal schedule published March 11, 2026.
These versions, along with PHP 5.6, 7.0, and 7.1, are scheduled for removal on September 30, 2026. Sites still running a removed PHP version will be automatically upgraded to the oldest available PHP version at the time of removal.
If your site is running PHP 7.2, 7.3, or 8.0, upgrade to a recommended PHP version before September 30, 2026 to avoid disruption. Pantheon recommends PHP 8.3 or 8.4 for all production sites.
For guidance on upgrading, refer to Upgrade PHP Versions.
Sites created with custom upstreams that specify an end-of-sale PHP version may also experience unexpected behavior upon site creation.
Sites with Multizone Failover enabled are now eligible for the Global CDN (GCDN) Beta. Previously, Multizone Failover sites were excluded from the Beta — that restriction has been removed.
No action is required. If you operate a Multizone Failover site, simply look for the GCDN Beta banner on your site dashboard and follow the guided steps when you're ready to migrate.
For full details on the GCDN Beta, see the GCDN Beta documentation.