qiskit/releasenotes/notes/1.3/followup_12629-8bfcf1a3d4e6...

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---
deprecations_transpiler:
- |
The method :meth:`.PassManagerConfig.from_backend` will stop supporting inputs of type
:class:`.BackendV1` in the `backend` parameter in a future release no earlier than 2.0.
:class:`.BackendV1` is deprecated and implementations should move to :class:`.BackendV2`.