small updates

qiskit_experiments/framework/backend_data.py

@@ -25,14 +25,17 @@ class BackendData:
 
     def __init__(self, backend):
         """Inits the backend and verifies version"""
-        warnings.filterwarnings(
-            "ignore", message=".*qiskit.qobj.pulse_qobj.*", category=DeprecationWarning
-        )
+
         self._backend = backend
         self._v1 = isinstance(backend, BackendV1)
         self._v2 = isinstance(backend, BackendV2)
+
         if self._v2:
-            self._parse_additional_data()
+            with warnings.catch_warnings():
+                warnings.filterwarnings(
+                    "ignore", message=".*qiskit.qobj.pulse_qobj.*", category=DeprecationWarning
+                )
+                self._parse_additional_data()
 
     def _parse_additional_data(self):
         # data specific parsing not done yet in upstream qiskit

releasenotes/notes/primitives_add-1a3bcbb2f189d18e.yaml

@@ -7,9 +7,9 @@ upgrade:
     When only a ``backend`` is set on an experiment, :meth:`qiskit_experiments.framework.BaseExperiment.run`
     now defaults to wrapping the ``backend`` in a :class:`qiskit_ibm_runtime.SamplerV2` and
     using that to execute the circuits. A new ``sampler`` argument is also
-    accepted by ``run()`` to allow for a custom :class:`qiskit.primitives.SamplerV2`
+    accepted by ``run()`` to allow for a custom :class:`qiskit.primitives.BaseSamplerV2`
     instance to be used for circuit execution. ``run()`` also accepts a ``backend_run``
     option which will cause the old ``backend.run`` path to be used for circuit execution.
-    However, the ``backend.run()`` method is scheduled to be deprecated by
+    However, the ``backend.run()`` method is scheduled to be removed from
     qiskit-ibm-runtime in the near future.