Migration2026
Drupal 9 to Drupal 11 migration
DGFIP, Ministry of the Economy, 2024 to 2026, Drupal lead developer.
Problem
A Drupal 9 platform had to move to Drupal 11, with a server stack to upgrade and custom modules to carry over.
Approach
- Upgrade of the PHP, Apache and PostgreSQL stack first
- Version upgrade through Composer
- 7 to 10 custom modules carried over
- Migration planned and delivered in Scrum sprints
Outcome
The platform moved from Drupal 9 to Drupal 11, with its custom modules carried over.