The platform was updated to PHP patch releases.
Pantheon release notes
PHP Upgrades
Category:
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 8.5.6
Category:
Drupal has been updated to version 8.5.6. For more information, see https://www.drupal.org/project/drupal/releases/8.5.6.
Drupal 7.59
Category:
Update to PHP 7.1. For details see https://pantheon.io/blog/speed-your-site-php-72/.
PHP Upgrades
Category:
HTTPS Provisioning Accelerated
Categories:
An improvement to our queuing system has resulted in a 60% reduction in average HTTPS provisioning times!
Documentation
Category:
AWS S3 Setup for WordPress
Integrate your S3 Bucket with WordPress for media storage.
Enabling ClamAV for Drupal
Take advantage of the ClamAV daemon on Pantheon for Drupal sites.
Apache Tika Update
Category:
The latest version of Apache Tika, 1.18, is now available on the platform. See documentation on External Libraries on Pantheon for details.