backstage/.changeset/silver-lies-rest.md

@backstage/plugin-catalog-backend-module-gitlab

@backstage/plugin-catalog-backend-module-gitlab
patch

The configuration key branch of the GitlabDiscoveryEntityProvider has been deprecated in favor of the configuration key fallbackBranch. It will be reused in future release to enforce a concrete branch to be used in catalog file discovery.
To migrate to the new configuration value, rename branch to fallbackBranch.