backstage/.changeset/carpal-tunnel-driver.md

@backstage/plugin-catalog-backend

@backstage/plugin-catalog-backend
minor

• The CatalogProcessor API was updated to have preProcessEntity and postProcessEntity methods, instead of just one processEntity. This makes it easier to make processors that have several stages in one, and to make different processors more position independent in the list of processors.
• The EntityPolicy is now given directly to the LocationReaders, instead of being enforced inside a policy. We have decided to separate out the act of validating an entity to be outside of the processing flow, to make it possible to apply more liberally and to evolve it as a separate concept.
• Because of the above, the EntityPolicyProcessor has been removed.