Pantheon Changelog

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November 2018

Platform Improvements

Drupal 8.6.2

Updated to Drupal 8.6.2. For more information, see

Drupal 7.60

Updated to Drupal 7.60. For more information, see

PHP 7.2.11 and 7.1.23

Updated to PHP 7.2.11 and 7.1.23. For more information, see and

October 2018

Platform Improvements

Improve Email Deliverability with SPF records

While we still recommend using a third-party email solution, for those who choose to use Pantheon's built-in message transfer agent (MTA), you may now set up an SPF record for your domain and include Pantheon's mail relays for improved delivery. For details, see: Email on Pantheon.

Drupal Maintenance Mode ImageCache Fix

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

Drupal 8.6.1

Update to Drupal 8.6.1. For more information, see

PHP Version Updates

PHP was updated to versions 5.6.38, 7.0.32, 7.1.22 and 7.2.10.


Annual Billing

Learn about how annual billing can save you money.

September 2018

Platform Improvements

Drupal 8.5.6

Drupal has been updated to version 8.5.6. For more information, see

Drupal 7.59

Update to PHP 7.1. For details see

WordPress 4.9.8

WordPress has been updated to version 4.9.8. For more information, see

New PHP Default Versions for Pantheon-maintained Upstreams

Drupal 8 and WordPress now default to PHP 7.2, while Drupal 7 defaults to PHP 7.1. For details see

PHP Upgrades

The platform was updated to PHP patch releases.

August 2018

Platform Improvements

HTTPS Provisioning Accelerated

An improvement to our queuing system has resulted in a 60% reduction in average HTTPS provisioning times!

Apache Tika Update

The latest version of Apache Tika, 1.18, is now available on the platform. See documentation on External Libraries on Pantheon for details.

PHP Upgrades

The PHP versions on the platform have been upgraded to 7.2.8, 7.1.20, 7.0.31 and 5.6.37.


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.

July 2018

Platform Improvements

Terminus 1.8.1

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

Pantheon has released Drupal 8.5.5 on the platform. For more information, see

Crawler Access to Platform Domains

More crawlers can now access platform domains, like, to support pre-release SEO testing. Details:

WordPress 4.9.7

Pantheon has released WordPress 4.9.7 on the platform. For more information, see


Introduction to Domain Name Services

Learn the basics of DNS and some of the most common pain points.

Early Access: Custom Certificates on Pantheon's Global CDN

Contract customers who need to retain custom TLS certificates now can.

Convert a Standard Drupal 8 Site to a Composer Managed Site

For when you discover you need to move your existing Drupal 8 site to a Composer-managed workflow.

WooCommerce Quick Start

Get your commerce site spun up quickly on Pantheon. Written by Patrick Rauland.

Professional Services

This new service includes consulting, migrations, load testing, training, and dedicated customer success managers. Available to customers with Gold, Platinum, or Diamond support plans.

May 2018

Platform Improvements

Duplicate Pantheon Sites with Terminus Site Clone

The new Terminus Site Clone plugin makes it easier than ever to duplicate sites on Pantheon. For details, see Migrate Sites to Pantheon FAQs.

PHP 7.2 MS SQL Support

The platform-wide build of PHP 7.2 now supports connecting to an external Microsoft SQL server via sqlsrv functions. Your CMS should use Pantheon's default database, but this unlocks use cases that require connecting to an external MS SQL server.

Upgrade to PHP 7.1 or 7.2 before December

PHP 5.5 and 5.3 have reached end-of-life (EOL), and PHP 5.6 and 7.0 will reach EOL in December 2018 so upgrade to PHP 7.1 or 7.2 as soon as possible.

PHP Updates

PHP has been upgraded to 5.6.36, 7.0.30, 7.1.17 and 7.2.5 platform-wide.

WordPress Core Upgrade

WordPress 4.9.6 has been pushed to all site dashboards.

Filemount Configuration

Use the filemount configuration to modify the default location of Pantheon's cloud-based filesystem. For details, see Pantheon YAML Configuration Files.


Drupal 8 and Composer on Pantheon Without Continuous Integration

Learn how to manage Drupal 8 using Composer with Pantheon.