Update to PHP 7.1. For details see https://pantheon.io/blog/speed-your-site-php-72/.
Pantheon release notes
Drupal 7.59
Category:
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.
WordPress 4.9.7
Category:
Pantheon has released WordPress 4.9.7 on the platform. For more information, see https://wordpress.org/news/2018/07/wordpress-4-9-7-security-and-maintenance-release/
Terminus 1.8.1
Category:
If you haven’t updated Terminus recently, check out the Terminus Changelog to see what’s new and update to the current release.
Drupal 8.5.5
Category:
Pantheon has released Drupal 8.5.5 on the platform. For more information, see https://www.drupal.org/project/drupal/releases/8.5.5