Pantheon Community

Fresh Update: Integrated Composer

You can now spin up a brand, shiny, new Drupal 9 site on Pantheon using Integrated Composer and manage the site using Localdev 1.0!
kermit_yay

You can learn how using the freshly updated Integrated Composer documentation.

However, this only works for new Drupal 9 sites. If you have an existing Drupal 8 site that you’re considering upgrading, check out how to test your site for D9 compatibility.

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What’s the timeline for enabling D9.1 support and integrated composer on existing sites?

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Hi @aaronbauman - thanks for reaching out. I assume you’re referring to working with existing Drupal 8 sites.

We don’t have a fixed release date for this feature yet, but it’s coming soon. Pantheon development teams are actively developing the feature set that enables moving Drupal 8.9 sites to Drupal 9.1 + Integrated Composer.

Until then, site owners can focus on upgrading to Drupal 8.9, if you haven’t yet. After that, go through the compatibility steps listed in the Drupal 9 doc. Check your contributed modules and custom code to ensure they’re Drupal 9 compatible.

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