Changelog

Deprecated

• Stop monkeypatching standard gates and move them to circuit/library/standard_gates (#4035)
• add circuit.compose() method (#4190)
• Boolean logic AND and OR to circuit library (#4130)

Added

• Add from_int method to Statevector and DensityMatrix (#4289)
• Global MS gate in circuit library (#4333)
• Iqp circuit added to circuit library (#4266)
• Add new fake backends FakeAthens and FakeRome (#4330)
• Circuit library: GraphState, HLF (#4259)
• Multi-control multi-target gate (#4028)
• N-local circuits for circuit library (#4211)
• Support for cregbundle in text circuit drawer (#4274)
• #3891 | PulseCompression (#4114)
• Add Cifford.from_label method (#4222)
• Use isometry for decomposition of 3+ qubit unitary gates (#4243)
• Blueprint circuit for the circuit library (#4185)
• Add EquivalenceLibrary.has_entry. (#4214)
• Diagonal in circuit library (#4186)
• HamiltonianGate (#4071)
• New fake backends: Cambridge, Paris, London, Valencia, Essex, Armonk (#4129)
• Boolean logic AND and OR to circuit library (#4130)
• Add methods to retrieve info from channels config in backends (#4097)
• Circuit library: QFT (#4072)
• Show instance name in output of pulse drawer (#4122)
• Hoare optimization transpiler pass (#3185)

Changed

• Stop monkeypatching standard gates and move them to circuit/library/standard_gates (#4035)
• add circuit.compose() method (#4190)
• ParametricPulses: rename constantpulse to constant (#4077)
• Remove marshmallow from providers/ (#4016)

Fixed

• Timeslot error fix and tests (#4335)
• missing pass_manager_drawer(..., filename=None) (#4331)
• fixed issue 4292 by updating latex drawer (#4322)
• QuantumCircuit.data modification methods to reset ParameterTable. (#4319)
• text-draw gates when are controlled and with a label (#4262)
• controlled gates label awareness (#4218)
• Fix bug in random_clifford (#4287)
• Transpiling with basis_gates=None disables unrolling (#4263)
• Error checking for time inputs to schedules and instructions (#4224)
• Adds ability to set ctrl_state on standard gates (#4076)
• Handle error on import if pygments < 2.4 is installed (#4229)
• Fix ParameterExpression.subs not detecting parameter name conflicts. (#4199)
• Instruction.is_parameterized to return False when fully bound. (#4198)
• • Fixed SetFrequency name sf -> setf in pulse instructions. (#4213)
• Correct display of cx & ccx gates and fix bug on multi-control gates in text_drawer (#4173)
• For appended circuit add padding for wire labels in text drawing mode (#4095)
• Properly copy registers on circuit copy (#4178)
• Changed pi_check to handle parameter values where possible (#3876)
• fixed issue 3427 by updating interpolation module functions (#3854)
• Fix conversion of numpy.number instruction params to python types. (#4152)