---
upgrade:
  - |
    For Aer's backend the jsonschema validation of input qobj objects from
    terra is now opt-in instead of being enabled by default. If you want
    to enable jsonschema validation of qobj set the ``validate`` kwarg on
    the :meth:`qiskit.providers.aer.QasmSimulator.run` method for the backend
    object to ``True``.
