Add reno

releasenotes/notes/remove-backend-props-unitary-synth-0dca60b56ccd9ee3.yaml

@@ -0,0 +1,11 @@
+---
+upgrade_transpiler:
+  - |
+    The ``backend_properties`` input argument has been removed from the following objects:
+    
+    * :class:`.UnitarySynthesis` transpiler pass
+    * :func:`.generate_translation_passmanager` function
+
+    This argument required a ``BackendProperties`` object, deprecated since qiskit 1.2, as it
+    belonged to the deprecated BackendV1 workflow. Constraints such as gate error and durations 
+    can be communicated to the :class:`.UnitarySynthesis` using the ``target`` input argument instead.