qiskit/releasenotes/notes/0.15/remove-multi-acquires-74770...

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---
deprecations:
- |
The properties ``acquires``, ``mem_slots``, and ``reg_slots`` of the
:class:`qiskit.pulse.instructions.Acquire` pulse instruction have been
deprecated and will be removed in a future release. They are just
duplicates of :attr:`~qiskit.pulse.instructions.Acquire.channel`,
:attr:`~qiskit.pulse.instructions.Acquire.mem_slot`,
and :attr:`~qiskit.pulse.instructions.Acquire.reg_slot` respectively
now that previously deprecated support for using multiple qubits in a
single :class:`~qiskit.pulse.instructions.Acquire` instruction has been
removed.
upgrade:
- |
The option to acquire multiple qubits at once was deprecated in the 0.12.0
release and is now removed. Specifically, the init args ``mem_slots`` and
``reg_slots`` have been removed from
:class:`qiskit.pulse.instructions.Acquire`, and ``channel``, ``mem_slot``
and ``reg_slot`` will raise an error if a list is provided as input.