Release notes: https://docs.quantum.ibm.com/api/qiskit/release-notes/0.46#0463

This is the final release in the 0.x release series marking the end-of-life of the release series.

Changelog

Fixed

• Fix C3SXGate to_matrix method (backport #12742) (#12744)
• Fix replace_block_with_op on operations with wrong number of qubits (#12637) (#12699)
• GenericBackendV2 should fail when the backend cannot allocate the basis gate because its size (backport #12653) (#12666)
• Fix some bugs in loading Solovay Kitaev decompositions (#12579) (#12665)
• Invalidate parameters cache on circuit copy (backport #12619) (#12620)