Sunset of backend.run

On 16 April 2024, users were notified that we had deprecated the backend.run() interface in Qiskit Runtime because the new V2 primitives interface fulfills its role. Note that support for backend.run() will officially be dropped on or around 7 January 2025. Refer to the migration guide for instructions to migrate any existing code that uses backend.run() to the new V2 primitives interface.

Note that support for backend.run() will be dropped on the server side, meaning that the method will not work even if you are using an older version of qiskit-ibm-runtime or qiskit-ibm-provider. Please plan accordingly.