diff --git a/.changeset/proud-cobras-chew.md b/.changeset/proud-cobras-chew.md
new file mode 100644
index 0000000000..ae08378715
--- /dev/null
+++ b/.changeset/proud-cobras-chew.md
@@ -0,0 +1,5 @@
+---
+'@backstage/backend-test-utils': patch
+---
+
+The backend started by `startTestBackend` now has default implementations of all core services. It now also returns a `TestBackend` instance, which provides access to the underlying `server` that can be used with testing libraries such as `supertest`.
diff --git a/.changeset/shaggy-apricots-camp.md b/.changeset/shaggy-apricots-camp.md
new file mode 100644
index 0000000000..705dcef0f0
--- /dev/null
+++ b/.changeset/shaggy-apricots-camp.md
@@ -0,0 +1,5 @@
+---
+'@backstage/backend-app-api': patch
+---
+
+Exported the default root HTTP router implementation as `DefaultRootHttpRouter`. It only implements the routing layer and needs to be exposed via an HTTP server similar to the built-in setup in the `rootHttpRouterFactory`.