This is part 4 of a series of videos showing the process to upgrade DrupalEasy.com to Drupal 9.
It should be noted that part 4 isn't so much about the Drupal 9 upgrade process as it entirely focuses on replacing the outdated drupal-composer/drupal-scaffold Composer plugin with the new Drupal Core, community-supported drupal/core-composer-scaffold Composer plugin as well as (since this site is hosted on Pantheon) pantheon-systems/drupal-integrations Composer Plugin.
The process is mainly based on the Upgrade Status module's report and was recording during the weekly, 2-hour DrupalEasy office hours (provided to alumni of Drupal Career Online).
Part 4 includes:
- Updating the Drupal Core scaffolding plugin.