I was pulled off to another project for the last while. Now I have a question about one of the sites I have been working on in Drupal 9.

The documentation says only this about converting from 8/9:

Crossgrading from Drupal 8 or 9
We recommend using the same tools that would be used to go from Drupal 8 to Drupal 7 for Backdrop CMS: Migrate module, custom scripts, etc.

Has anyone any more info on this? 

Accepted answer

For converting a site from Drupal 9 to Backdrop, I would probably recommend using the Migrate module. Although it is not in core, we do have a mostly complete version of the base Migrate module here: https://github.com/backdrop-contrib/migrate.

 

Comments

Also, which "Migrate" module to use? D9 includes "Migrate" in core but Backdrop does not. Contrib module "Backup and Migrate" are available for both.

Thanks. (And happy Thanksgiving to those in USA.)

For converting a site from Drupal 9 to Backdrop, I would probably recommend using the Migrate module. Although it is not in core, we do have a mostly complete version of the base Migrate module here: https://github.com/backdrop-contrib/migrate.