qiskit/releasenotes/notes/2.0/fix-mcrz-19d14a8d973a82cb.yaml

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---
fixes:
- |
Fixed a bug in :meth:`.RZGate.control` for more than 1 control qubit, which used
an unnecessarily expensive decomposition.
Fixed `#13473 <https://github.com/Qiskit/qiskit/issues/13473>`__.
upgrade_circuits:
- |
The generic control method for gates now avoids attempting to translate gates
into a supported basis, if the gate is already supported. This can slightly change the
synthesis of the controlled gate, although it should not increase the two-qubit gate count.