diff --git a/.changeset/red-planets-hammer.md b/.changeset/red-planets-hammer.md
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+---
+'@backstage/catalog-model': minor
+'@backstage/plugin-catalog-backend': minor
+'@backstage/plugin-catalog': patch
+---
+
+Implemented missing support for the dependsOn/dependencyOf relationships between Component and Resource catalog model objects. Added support for generating the relevant relationships to the BuiltinKindsEntityProcessor, and added simple support for fetching relationships between Components and Resources for rendering in the system diagram. All catalog-model changes backwards compatible.