Tips on Upgrading to Drupal 10

Nevin Katz
11 min readMar 2, 2024
Photo by Rubaitul Azad on Unsplash

If you work on Drupal websites, you likely are no stranger to the version end-of-life dates and the quick pace of new releases. After Drupal 8 lost support in 2021, Drupal 9 also reached EOL in November 2023, so we recently migrated several of our websites to Drupal 10.

While the specifics of a D10 upgrade vary from site to site, they all entail common under-the-hood changes. One such change is the upgrade to Symfony, the underlying PHP framework for many of Drupal’s core components. For most of our sites, we upgraded or patched community-supported modules, made syntax changes to custom code, and either removed or replaced modules that were incompatible with Drupal 10.

To achieve these changes, we set up an upgrade process that handled five main areas:

  • Community-Supported Modules
  • Drupal Core
  • Vendor packages
  • Database updates
  • Custom Code

Below is a quick rundown of the upgrade process we developed to handle the above areas.

Charting the course

When first embarking on a site upgrade, our primary goal is first to figure out what is needed to upgrade Drupal core to 10. Figuring out the best path forward entails working with Composer, a PHP dependency…



Nevin Katz

Developer at EDC. I write about web development and biology. Subscribe at for article roundups.