Changelog

Fixed

Set register name for definition of ControlledGates with ctrl_state. (#4582) (#4583)
Give MCX implementations more specific names. (#4568) (#4570)
fix bug in unrolling open controlled basis gates. (#4444) (#4561)
[Stable] Cache dag qubits/clbits (#4535) (#4558)
fixed issue 4391 by updating idle_wires() in dagcircuit (#4481) (#4553)
Circuit library NLocal string circuit drawer issue (#4468) (#4543)
Add equivalence_library kwarg to circuit_to_{gate,inst} converters. (#4431) (#4534)
Fix the circuit gate links in docs (#4487) (#4514)
fixed issue 4133 by updating U3 and U2 definitions (#4165) (#4474)
Fix #4445 | Bug in scheduler if circuit is empty (#4472) (#4476)
Add missing T gate to documentation (#4409) (#4428)
Bugfix: Hz -> GHz conversion for SetFrequency -> PulseQobjInstruction (#4399) (#4434)
Fix bug in visualization/pulse/matplotlib (#4403) (#4405)