6.0.0 "Rectifier"

Drupal VM 6 drops support for some older OS distributions, to increase stability under the latest versions of Ubuntu, CentOS, and Debian, and to finally drop all support for the now-unsupported Python 2.

The Drupal VM Docker container image is now based on Debian 10 Buster, though the default Drupal VM box when running as a VirtualBox VM is still based on Ubuntu 18.04.

The default PHP version is now PHP 7.4, which works great with all the latest versions of Drupal 7, 8, and 9.

Breaking Changes

• #2065: Drop official support for Debian 9, CentOS 7, and Ubuntu 16.04 and Python 2.
• #2061: Default to PHP 7.4.
• Drupal VM Docker container now based on Debian 10 Buster.

New/changed variables in default.config.yml

• Removed centos7, debian9, and ubuntu1604 from vagrant_box options.
• ansible_python_interpreter now defaults to python3 (was /usr/bin/python3).
• drupal_composer_dependencies now includes both "drush/drush:^10" and "drupal/devel:^4.0".
• drupal_composer_project_package now defaults to the recommended Drupal project: "drupal/recommended-project:^9@dev".
• drupal_major_version is now 9 (was 8).
• php_version is now "7.4" (was "7.2").
• Added php_xdebug_version: 2.9.5.

Improvements

• #2050: Default to Drupal 9.
• #1997: Include php_xdebug_version in default config for visibility.
• Updated roles: varnish, solr, elasticsearch, java, memcached, postgresql, adminer, php, drupal.

Bugfixes

• #2041: Point to Python 3 interpreter in $PATH.
• #2062: Allow Composer to use more memory since it runs out at 1.5 GB.
• #2063: Update Devel version to work with Drupal 9.
• #2064: Explicitly require Drush on new sites to work with Drupal 9.
• #2066: Fix postfix service failure on CentOS 8 test container.
• #2059: Improve docs for Windows usage.