diff --git a/releasenotes/notes/lib_api_microversion_fixture-f52308fc6b6b89f2.yaml b/releasenotes/notes/lib_api_microversion_fixture-f52308fc6b6b89f2.yaml
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+---
+features:
+  - |
+    New library interface to set the API microversion on Service Clients.
+    ``APIMicroversionFixture,`` can be used to set the API microversion
+    on multiple services. This Fixture will take care of reseting the service
+    microversion to None once test is finished.