Qiskit Terra 0.23.1

Changelog

Fixed

• Fix bad deprecation of Register.name_format (#9494) (#9497)
• Manage edge case of pickling instmap. (#9487) (#9495)
• Fix performance of ReverseEstimatorGradient for partial gradients (#9491) (#9492)

Qiskit Terra 0.23.0

Release notes: https://qiskit.org/documentation/release_notes.html#terra-0-23-0

Changelog

Deprecated

• Add deprecation warning on use of qiskit.IBMQ (#8080)
• Deprecate LinearFunctionsSynthesis transpiler pass (#9041)
• Refactor state latex drawer (#8874)
• Relax register-naming restrictions (#9100)
• Deprecate old path to QPY (#9225)
• Correct deprecation of old pulse visualization (#9146)
• Transfer clifford and cnot-dihedral synthesis functions from quantum_info to synthesis (#9141)
• Deprecate Python 3.7 support (#8942)
• Deprecate lists for argument input on transpile() (#8835)
• Fix pauli_basis deprecation (#8905)

Added

• Constructing Cliffords from quantum circuits with other Cliffords (#9169)
• Add importer for OpenQASM 3 (#9347)
• High-level-synthesis for permutations (#9157)
• Implements VarQTE algorithm with primitives. (#8746)
• Add final layout to output quantum circuit from transpiler (#8597)
• Primitives support the dynamic circuits with control flow (#9231)
• Add option to user config to control reverse_bits in circuit drawer (#9211)
• Efficient classical calculation of expectation gradients (#9287)
• Split QFI into QFI and QGT (#9085)
• Convert Equivalence Library to graph (#8790)
• Add FakeSherbrooke backend (#9339)
• Lazy pulse qobj loading for large backend (#8885)
• Add FakePrague Egret R1 to fake backends (#9369)
• Introducing ScalableSymbolicPulse to correctly compare pulses of amp,angle representation (#9314)
• support gate powering with ** (#9030)
• Add option to allow passing unknown parameters to ParameterExpression.bind (#9304)
• Speed up Clifford.compose (#7483)
• Synthesis of a Clifford circuit into layers (#9220)
• add dtype parameter to PauliSumOp.from_list (#8896)
• Add efficient gate power methods (#9318)
• Translate parameterized gates only in gradient calculations (#9067)
• Refactor z2symmetries (#9227)
• Numerical Integration methods for real and imaginary time evolution. (#8399)
• Refactor gradients for extensibility (#9084)
• Add the Solovay-Kitaev algorithm to the transpiler passes (#5657)
• Various improvements to AdaptVQE (#9215)
• Oxidize SabreLayout pass (#9116)
• Add DAGCircuit output option to OneQubitEulerDecomposer (#9188)
• Adding linear synthesis algorithm for LNN (#9098)
• Adding CollectAndCollapse transpiler pass (#8907)
• Fully QPY compatible pulse builder for V2 and runtime backend (#8949)
• Improve performance of VF2 scoring and add support for scoring passes (#9026)
• Increase Accuracy of OpenQASM 2.0 Dump (#8250)
• Update Optimize1qGatesDecomposition to be Target aware (#8917)
• Adding permutation synthesis algorithm for LNN (#9082)
• Add gradient methods to FinDiffGradients (#9104)
• Calculate relative, not absolute, scores in SabreSwap (#9012)
• Add support for Python 3.11 (#9028)
• Improve LinearFunction synthesis (#8568)
• Add implicit iteration to CouplingMap (#9051)
• QFI with the primitives (#8688)
• add QuantumCircuit.from_instructions (#9006)
• Speed up random_circuit (#8983)
• Add missing equivalences for XX{Plus,Minus}YYGate (#9017)
• Make UnrollCustomDefinitions pass target aware (#8784)
• Return DAGOpNode from dagcircuit.replace_block_with_op (#8799)

Changed

• Refactor state latex drawer (#8874)
• Convert Equivalence Library to graph (#8790)
• Relax register-naming restrictions (#9100)
• Introducing ScalableSymbolicPulse to correctly compare pulses of amp,angle representation (#9314)
• Oxidize SabreLayout pass (#9116)
• Converting the pulse library from complex amp to amp+angle (#9002)
• Adding CollectAndCollapse transpiler pass (#8907)
• Fully QPY compatible pulse builder for V2 and runtime backend (#8949)
• Switch from retworkx to rustworkx package (#9162)
• Improve LinearFunction synthesis (#8568)
• Use TOQM routing staged pass manager. (#9042)
• Speed up random_circuit (#8983)
• Remove tweedledum as a core dependency (#8947)
• Add singledispatchmethod to dependency (#8944)
• Fix transpile() for control flow operations with a Target/BackendV2 (#8852) (#8889)

Removed

• Remove label argument from MCMTVChain and MCMT (#9324)
• Remove gate argument from qiskit.transpiler.passes.Decompose (#9325)
• Remove deprecated MSBasisDecomposer transpiler pass (#9342)
• Remove deprecated measure and reset circuit operations (#9278)
• Remove deprecated functions from ParameterView (#9184)
• Remove deprecated redirects from visualization (#9131)
• Removed NLocal inital_state that is not a QuantumCircuit (#9081)
• Remove deprecated networkx dag converter functions (#9035)
• Remove deprecated methods from QuantumCircuit (#8980)

Fixed

• Fix add_calibration bug (#9223) (#9451)
• Fix PauliOp.adjoint() (#9434) (#9443)
• Fix qpy for MCX gates (#9391) (#9412)
• Fix TensoredOp.to_matrix with global coefficients (#9404) (#9408)
• Fix the AmplitudeEstimator algorithms for primitive usage (#9394) (#9407)
• Constructing Cliffords from quantum circuits with other Cliffords (#9169)
• Make BackendSampler set shots and stddev_upper_bound of returned QuasiDistribution (#9312)
• Barrier support for visualize_transition and refactor (#8834)
• Fix PauliOp matmul with iI & add PauliOp test (#9321)
• Relax register-naming restrictions (#9100)
• Fix: AQC returns a wrong circuit when the unitary has a determinant −1 (#9331)
• Fix PVQD loss function (#9371)
• Fix QuantumCircuit.compose on unusual types and registers (#9206)
• Update qiskit.utils.wrap_method for Python 3.11 (#9310)
• Fix ComposedOp.to_matrix (#9316)
• Fix NumPyEigensolver with SparsePauliOp (#9101)
• Fix PulseQobj converter name collision (#8839)
• Feature/trivial gate inversions (#9262)
• Fix primitives metadata (#9285)
• Refactor gradients for extensibility (#9084)
• Fix LinCombSamplerGradient to leverage AerSampler (#9258)
• Fix betas calculation on VQD and async. cost evaluation (#9245)
• Fix a transpile issue of BackendSampler (#9236)
• Performance improvement of _DiagonalEstimator (#9229)
• Fix the aggregation argument of SamplingVQE (#9221)
• Fix ordering of dims in QuantumState.probabilities_dict (#9214)
• Enable simplifying 1q runs and 2q blocks in transpile() without target (#9222)
• Fix shots argument of local_readout_mitigator (#9155)
• Infer cregbundle for all drawers (#9133)
• Fully QPY compatible pulse builder for V2 and runtime backend (#8949)
• fix: overwrite AdaptVQE.supports_aux_operators (#9142)
• Fix serialization of primitives (#9076)
• fix #9102 (#9103)
• Reinstate pulse.Instruction.draw (#9144)
• Fix random seed initialization between runs in SabreSwap (#9127)
• Use float-epsilon calculation in Sabre best scores (#9117)
• Fixed sign bug in docs in LinCombEstimatorGradient. (#9113)
• 🐛 fix deprecated Loader.load_module() (#9078)
• Fix QPY handling of registers (#9095)
• Fix Backend primitive classes for BackendV1 with no max_experiments (#9069)
• Improve LinearFunction synthesis (#8568)
• Avoid deepcopy in pulse parser (#9063)
• Fix incorrect graph construction in VF2PostLayout (#9058)
• Make TwoQubitWeylDecomposition pickle-able (#7333)
• Fix default batching in variational algorithms (#9038)
• Fix handling of global ideal gates for target build_coupling_map() (#8977)
• Fix backend primitives on backends with job size limit (#8955)
• Fix zero-operand gates and instructions (#8272)
• Fix transpile() with a Target containing an ideal Measure (#8995)
• Fix VQD for k>2 (#8989)
• Fix manifest entry for mpl styles (#9004)
• fix #8992 (#8998)
• Fix VF2Layout and VF2PostLayout handling of instructions without error (#8978)
• Cast ParameterExpression to float in RZXBuilder and RZXCalibrationBuilderNoEcho (#8965)
• Avoid skipping channels in pulse visualizer (#8974)
• Fix parallel dispatch with target argument in transpile() (#8952)
• Fix Statevector.evolve and DensityMatrix.evolve for mixed dimension subsystems (#8900)
• Fix classical-bit handling in control-flow StochasticSwap (#8906)
• Fix single-bit-condition equality in QuantumCircuit and DAGCircuit (#8930)
• Fix BarrierBeforeFinalMeasurements with loose bits (#8924)
• Fix handling of globally defined operations in Target (#8925)
• Fix qpy custom ControlledGate with overloaded _define() (#8927)
• Fix loose-bit handling in QPY (#8928)
• Fix pauli_basis deprecation (#8905)
• Fix transpile() for control flow operations with a Target/BackendV2 (#8852) (#8889)
• Fix pauli.evolve dtype casting error (#8877) (#8884)
• Fix pauli.evolve dtype casting error (#8877)

Qiskit Terra 0.23.0rc1

Changelog

Deprecated

• Add deprecation warning on use of qiskit.IBMQ (#8080)
• Deprecate LinearFunctionsSynthesis transpiler pass (#9041)
• Refactor state latex drawer (#8874)
• Relax register-naming restrictions (#9100)
• Deprecate old path to QPY (#9225)
• Correct deprecation of old pulse visualization (#9146)
• Transfer clifford and cnot-dihedral synthesis functions from quantum_info to synthesis (#9141)
• Deprecate Python 3.7 support (#8942)
• Deprecate lists for argument input on transpile() (#8835)
• Fix pauli_basis deprecation (#8905)

Added

• Constructing Cliffords from quantum circuits with other Cliffords (#9169)
• Add importer for OpenQASM 3 (#9347)
• High-level-synthesis for permutations (#9157)
• Implements VarQTE algorithm with primitives. (#8746)
• Add final layout to output quantum circuit from transpiler (#8597)
• Primitives support the dynamic circuits with control flow (#9231)
• Add option to user config to control reverse_bits in circuit drawer (#9211)
• Efficient classical calculation of expectation gradients (#9287)
• Split QFI into QFI and QGT (#9085)
• Convert Equivalence Library to graph (#8790)
• Add FakeSherbrooke backend (#9339)
• Lazy pulse qobj loading for large backend (#8885)
• Add FakePrague Egret R1 to fake backends (#9369)
• Introducing ScalableSymbolicPulse to correctly compare pulses of amp,angle representation (#9314)
• support gate powering with ** (#9030)
• Add option to allow passing unknown parameters to ParameterExpression.bind (#9304)
• Speed up Clifford.compose (#7483)
• Synthesis of a Clifford circuit into layers (#9220)
• add dtype parameter to PauliSumOp.from_list (#8896)
• Add efficient gate power methods (#9318)
• Translate parameterized gates only in gradient calculations (#9067)
• Refactor z2symmetries (#9227)
• Numerical Integration methods for real and imaginary time evolution. (#8399)
• Refactor gradients for extensibility (#9084)
• Add the Solovay-Kitaev algorithm to the transpiler passes (#5657)
• Various improvements to AdaptVQE (#9215)
• Oxidize SabreLayout pass (#9116)
• Add DAGCircuit output option to OneQubitEulerDecomposer (#9188)
• Adding linear synthesis algorithm for LNN (#9098)
• Adding CollectAndCollapse transpiler pass (#8907)
• Fully QPY compatible pulse builder for V2 and runtime backend (#8949)
• Improve performance of VF2 scoring and add support for scoring passes (#9026)
• Increase Accuracy of OpenQASM 2.0 Dump (#8250)
• Update Optimize1qGatesDecomposition to be Target aware (#8917)
• Adding permutation synthesis algorithm for LNN (#9082)
• Add gradient methods to FinDiffGradients (#9104)
• Calculate relative, not absolute, scores in SabreSwap (#9012)
• Add support for Python 3.11 (#9028)
• Improve LinearFunction synthesis (#8568)
• Add implicit iteration to CouplingMap (#9051)
• QFI with the primitives (#8688)
• add QuantumCircuit.from_instructions (#9006)
• Speed up random_circuit (#8983)
• Add missing equivalences for XX{Plus,Minus}YYGate (#9017)
• Make UnrollCustomDefinitions pass target aware (#8784)
• Return DAGOpNode from dagcircuit.replace_block_with_op (#8799)

Changed

• Refactor state latex drawer (#8874)
• Convert Equivalence Library to graph (#8790)
• Relax register-naming restrictions (#9100)
• Introducing ScalableSymbolicPulse to correctly compare pulses of amp,angle representation (#9314)
• Oxidize SabreLayout pass (#9116)
• Converting the pulse library from complex amp to amp+angle (#9002)
• Adding CollectAndCollapse transpiler pass (#8907)
• Fully QPY compatible pulse builder for V2 and runtime backend (#8949)
• Switch from retworkx to rustworkx package (#9162)
• Improve LinearFunction synthesis (#8568)
• Use TOQM routing staged pass manager. (#9042)
• Speed up random_circuit (#8983)
• Remove tweedledum as a core dependency (#8947)
• Add singledispatchmethod to dependency (#8944)
• Fix transpile() for control flow operations with a Target/BackendV2 (#8852) (#8889)

Removed

• Remove label argument from MCMTVChain and MCMT (#9324)
• Remove gate argument from qiskit.transpiler.passes.Decompose (#9325)
• Remove deprecated MSBasisDecomposer transpiler pass (#9342)
• Remove deprecated measure and reset circuit operations (#9278)
• Remove deprecated functions from ParameterView (#9184)
• Remove deprecated redirects from visualization (#9131)
• Removed NLocal inital_state that is not a QuantumCircuit (#9081)
• Remove deprecated networkx dag converter functions (#9035)
• Remove deprecated methods from QuantumCircuit (#8980)

Fixed

• Constructing Cliffords from quantum circuits with other Cliffords (#9169)
• Make BackendSampler set shots and stddev_upper_bound of returned QuasiDistribution (#9312)
• Barrier support for visualize_transition and refactor (#8834)
• Fix PauliOp matmul with iI & add PauliOp test (#9321)
• Relax register-naming restrictions (#9100)
• Fix: AQC returns a wrong circuit when the unitary has a determinant −1 (#9331)
• Fix PVQD loss function (#9371)
• Fix QuantumCircuit.compose on unusual types and registers (#9206)
• Update qiskit.utils.wrap_method for Python 3.11 (#9310)
• Fix ComposedOp.to_matrix (#9316)
• Fix NumPyEigensolver with SparsePauliOp (#9101)
• Fix PulseQobj converter name collision (#8839)
• Feature/trivial gate inversions (#9262)
• Fix primitives metadata (#9285)
• Refactor gradients for extensibility (#9084)
• Fix LinCombSamplerGradient to leverage AerSampler (#9258)
• Fix betas calculation on VQD and async. cost evaluation (#9245)
• Fix a transpile issue of BackendSampler (#9236)
• Performance improvement of _DiagonalEstimator (#9229)
• Fix the aggregation argument of SamplingVQE (#9221)
• Fix ordering of dims in QuantumState.probabilities_dict (#9214)
• Enable simplifying 1q runs and 2q blocks in transpile() without target (#9222)
• Fix shots argument of local_readout_mitigator (#9155)
• Infer cregbundle for all drawers (#9133)
• Fully QPY compatible pulse builder for V2 and runtime backend (#8949)
• fix: overwrite AdaptVQE.supports_aux_operators (#9142)
• Fix serialization of primitives (#9076)
• fix #9102 (#9103)
• Reinstate pulse.Instruction.draw (#9144)
• Fix random seed initialization between runs in SabreSwap (#9127)
• Use float-epsilon calculation in Sabre best scores (#9117)
• Fixed sign bug in docs in LinCombEstimatorGradient. (#9113)
• 🐛 fix deprecated Loader.load_module() (#9078)
• Fix QPY handling of registers (#9095)
• Fix Backend primitive classes for BackendV1 with no max_experiments (#9069)
• Improve LinearFunction synthesis (#8568)
• Avoid deepcopy in pulse parser (#9063)
• Fix incorrect graph construction in VF2PostLayout (#9058)
• Make TwoQubitWeylDecomposition pickle-able (#7333)
• Fix default batching in variational algorithms (#9038)
• Fix handling of global ideal gates for target build_coupling_map() (#8977)
• Fix backend primitives on backends with job size limit (#8955)
• Fix zero-operand gates and instructions (#8272)
• Fix transpile() with a Target containing an ideal Measure (#8995)
• Fix VQD for k>2 (#8989)
• Fix manifest entry for mpl styles (#9004)
• fix #8992 (#8998)
• Fix VF2Layout and VF2PostLayout handling of instructions without error (#8978)
• Cast ParameterExpression to float in RZXBuilder and RZXCalibrationBuilderNoEcho (#8965)
• Avoid skipping channels in pulse visualizer (#8974)
• Fix parallel dispatch with target argument in transpile() (#8952)
• Fix Statevector.evolve and DensityMatrix.evolve for mixed dimension subsystems (#8900)
• Fix classical-bit handling in control-flow StochasticSwap (#8906)
• Fix single-bit-condition equality in QuantumCircuit and DAGCircuit (#8930)
• Fix BarrierBeforeFinalMeasurements with loose bits (#8924)
• Fix handling of globally defined operations in Target (#8925)
• Fix qpy custom ControlledGate with overloaded _define() (#8927)
• Fix loose-bit handling in QPY (#8928)
• Fix pauli_basis deprecation (#8905)
• Fix transpile() for control flow operations with a Target/BackendV2 (#8852) (#8889)
• Fix pauli.evolve dtype casting error (#8877) (#8884)
• Fix pauli.evolve dtype casting error (#8877)

Qiskit Terra 0.22.4

Changelog

Fixed

• Performance improvement of _DiagonalEstimator (#9229) (#9243)
• Fix the aggregation argument of SamplingVQE (#9221) (#9241)
• Fix ComposedOp.to_matrix (#9316) (#9356)
• Fix a transpile issue of BackendSampler (#9236) (#9249)
• Fix Sampler fails on gates with unhashable parameters #9102 (#9103) (#9149)
• Fix ordering of dims in QuantumState.probabilities_dict (#9214) (#9226)

Qiskit Terra 0.22.3

Release notes: https://qiskit.org/documentation/release_notes.html#terra-0-22-3

Changelog

Fixed

• Infer cregbundle for all drawers (#9133) (#9191)
• fix: QNSPSA with max_evals_grouped exceeding 1 (#9182) (#9189)
• fix: overwrite AdaptVQE.supports_aux_operators (#9142) (#9166)
• Fix serialization of primitives (#9076) (#9152)
• Reinstate pulse.Instruction.draw (#9144) (#9147)
• Fix random seed initialization between runs in SabreSwap (backport #9127) (#9132)
• 🐛 fix deprecated Loader.load_module() (#9078) (#9114)

Qiskit Terra 0.22.2

Release notes: https://qiskit.org/documentation/release_notes.html#terra-0-22-2

Changelog

Added

• Add support for Python 3.11 (backport #9028) (#9071)

Fixed

• Fix Backend primitive classes for BackendV1 with no max_experiments (#9069) (#9072)
• Avoid deepcopy in pulse parser (#9063) (#9068)
• Fix incorrect graph construction in VF2PostLayout (#9058) (#9060)

Qiskit Terra 0.22.1

Full release notes: https://qiskit.org/documentation/release_notes.html#terra-0-22-1

Changelog

Fixed

• Fix default batching in variational algorithms (#9038) (#9050)
• Fix handling of global ideal gates for target build_coupling_map() (#8977) (#9040)
• Fix backend primitives on backends with job size limit (#8955) (#9039)
• Fix zero-operand gates and instructions (#8272) (#9034)
• Fix transpile() with a Target containing an ideal Measure (#8995) (#9020)
• Fix VQD for k>2 (#8989) (#9009)
• Fix manifest entry for mpl styles (#9004) (#9007)
• fix #8992 (#8998) (#9000)
• Fix VF2Layout and VF2PostLayout handling of instructions without error (#8978) (#8997)
• Cast ParameterExpression to float in RZXBuilder and RZXCalibrationBuilderNoEcho (#8965) (#8994)
• Fix parallel dispatch with target argument in transpile() (#8952) (#8972)
• Fix Statevector.evolve and DensityMatrix.evolve for mixed dimension subsystems (#8900) (#8964)
• Fix classical-bit handling in control-flow StochasticSwap (#8906) (#8956)
• fix hinton visualization bug (#8447) (#8946)
• Fix single-bit-condition equality in QuantumCircuit and DAGCircuit (#8930) (#8943)
• Fix qpy custom ControlledGate with overloaded _define() (#8927) (#8937)
• Fix BarrierBeforeFinalMeasurements with loose bits (#8924) (#8939)
• Fix handling of globally defined operations in Target (#8925) (#8938)
• Fix loose-bit handling in QPY (#8928) (#8931)
• Fix pauli_basis deprecation (#8905) (#8909)

Qiskit Terra 0.22.0

Release notes: https://qiskit.org/documentation/release_notes.html#qiskit-0-39-0

Changelog

Deprecated

• Switch to primitive support in QNSPSA (#8682)
• Pending deprecate algo eigen_solvers (#8651)
• Clifford does not use StabilizerTable as internal data and PendingDeprecation of PauliTable and StabilizerTable (#7269)
• Pending deprecate algorithms (#8703)
• Rewrite Amplitude Estimators with Primitives (#8656)
• Quantum Phase Estimation algorithms with primitives. (#8666)
• Support Sampler in Grover (#8647)
• Prepare for removal of tweedledum as a requirement (#8738)
• Adds observable evaluator with primitives. (#8683)
• Time Evolution Framework with primitives. (#8681)
• deprecate qiskit.pulse.utils.deprecated_functionality in favor of qiskit.utils.deprecation.deprecate_function (#8696)
• Deprecate Algorithms Factorizers and Linear Solvers (#8617)
• Add run method to primitives (#8382)

Added

• Modify preset pass managers for control-flow support (#8830)
• Add controlflow handling to stochastic swap pass (#8418)
• Add support for custom backend transpiler stages (#8648)
• Update GateDirection and checker for control flow (#8822)
• Add control-flow support to GatesInBasis (#8823)
• plot_histogram now a valid histogram, plot_distribution for non-discrete data (#8762)
• Sampled expectation value for distributions (#8748)
• Implementing pluggable HighLevelSynthesis (#8548)
• Handle control-flow in DenseLayout (#8742)
• Switch to primitive support in QNSPSA (#8682)
• add controlflow handling to CheckMap transpiler pass. (#8793)
• Add BackendSampler for Sampler from an arbitrary backend (#8668)
• Add backend estimator for estimator from an arbitrary backend (#8736)
• Sampler-based VQE for diagonal operators, plus QAOA (#8669)
• Make VF2Layout and VF2PostLayout work with control flow (#8804)
• Add control-flow support to "properties" transpiler passes (#8763)
• Implement eigensolvers (VQD) with primitives (#8640)
• Clifford does not use StabilizerTable as internal data and PendingDeprecation of PauliTable and StabilizerTable (#7269)
• add control flow support to UnitarySynthesis pass (#8565)
• Add conversion transpiler pass from c_if to IfElseOp (#8764)
• Parameter handling in SparsePauliOp (#8620)
• Migrating AdaptVQE to Qiskit Terra (#7930)
• Add BackendV2Converter class for treating BackendV1 as BackendV2 (#8759)
• Add optimization to quantum shannon decomposition (#8092)
• VQE implementation with estimator primitive (#8702)
• Remove symbolic pulse subclass implementation (#8278)
• Improving memory consumption of DagDependency when lists of transitive predecessors and successors are not required (#8525)
• Rewrite Amplitude Estimators with Primitives (#8656)
• Quantum Phase Estimation algorithms with primitives. (#8666)
• Implemented TrotterQRTE algorithm with primitives. (#8706)
• Support Sampler in Grover (#8647)
• Implemented PVQD algorithm with primitives. (#8705)
• adding FakeGeneva (#8322)
• Add FakeAuckland backend to fake provider (#8467)
• Add FakeOslo backend to fake provider (#8358)
• adding FakePerth (#8344)
• Allow DAG-node substitution without overriding conditions (#8615)
• Adds observable evaluator with primitives. (#8683)
• Edge coloring for the Commuting2qGateRouter (#8341)
• Pulse reference mechanism (#8005)
• Add BaseResult functionality to primitives module (#8091)
• Time Evolution Framework with primitives. (#8681)
• Add CS, CSdg and CCZ gates to the CNOTDihedral class (#8673)
• feat: support sum(LinearMixin) (#8722)
• Default run_options for Primitives (#8513)
• Gradients with the primitives (#8528)
• Fidelity interface using primitives (#8303)
• Add curve fill control option to pulse drawer (#8658)
• Add ResetAfterMeasureSimplification transpiler pass (#8330)
• Enable multiple parallel seed trials for SabreSwap (#8572)
• Implements two-step tapering (#8590)
• Add stage plugin interface for transpile (#8305)
• Steppable Optimizer (#8170)
• Add CS and CCZ gates (#8583)
• Variational Quantum Time Evolution algorithm. (#8152)
• Add barrier labels and display in 3 circuit drawers (#8440)
• Adding Cliffords to QuantumCircuits as Operations (#7966)
• Improve the performance of taper in opflow (#8410)
• Refactoring commutativity analysis and a new commutative inverse cancellation transpiler pass (#8184)
• Add run method to primitives (#8382)
• Projected Variational Quantum Dynamics (#8304)
• Add optimization for TwoLocal synthesis when entanglement='full' (#8335)
• Reimplement SabreSwap heuristic scoring in Rust (#7977)
• Tensored fitter (#8345)
• Add wire_order option to all circuit drawers to allow defining the order of the wires (#8173)
• Added argsort and sort method to SparsePauliOp (#8016)
• add atol parameter to SparsePauliOp.equiv (#8281)
• Combine circuits with clbits onto those with none (#7823)
• Add shots option to primitives (#8137)

Changed

• Fix transpile() for control flow operations with a Target/BackendV2 (#8852) (#8889)
• Remove tweedledum from macOS arm64 immediately (#8849)
• Fix reverse permutation for transpiled circuits in Operator.from_circuit (#8802)
• Remove pulse defaults for old fake 20q backends (#8665)
• Use Sabre by default for optimization levels 1 and 2 (#8552)
• Remove symbolic pulse subclass implementation (#8278)
• Quantum Phase Estimation algorithms with primitives. (#8666)
• Support Sampler in Grover (#8647)
• Update ProbDistribution and QuasiDistribution to store the number of bits if bitstrings w/o prefix are given (#8464)
• Fix handling of holes in physical bits list in Layout (#8767)
• Default set to turn off approximation_degree (#8595)
• Prepare for removal of tweedledum as a requirement (#8738)
• Pulse reference mechanism (#8005)
• Move circuit drawer files to qiskit.visualization.circuit (#8306)
• Reimplement SabreSwap heuristic scoring in Rust (#7977)

Removed

• Remove deprecated pulse-builder contexts (#8697)
• Remove deprecated methods and arguments in quantum_info (#8510)
• Fix maxfun default in L_BFGS (#8285)
• Argument epsilon and factr of optimizers L_BFGS_B and factr of P_BFGS has been removed (#8210)
• Deprecated QiskitIndexError removed (#8209)

Fixed

• Fix transpile() for control flow operations with a Target/BackendV2 (#8852) (#8889)
• Fix pauli.evolve dtype casting error (#8877) (#8884)
• Modify preset pass managers for control-flow support (#8830)
• Fix handling of 1q gates in UnitarySynthesis with target (#8847)
• Fix DenseLayout when loose bits are present in input circuit (#8843)
• Fix reverse permutation for transpiled circuits in Operator.from_circuit (#8802)
• Introduce observable key for Estimator (#8837)
• Resolve classical conditions in QuantumCircuit.while_loop (#8833)
• Update GateDirection and checker for control flow (#8822)
• "cregbundle set to False" warning should not raised when no classical bits are involved (#8689)
• Add control-flow support to "properties" transpiler passes (#8763)
• Fix for None in state_to_latex latex output (#8273)
• Fix flipping of gate direction in transpiler for CZ gate (#8625)
• add state_to_latex prefix kwarg (#8461)
• Fix handling of holes in physical bits list in Layout (#8767)
• Fix printing an empty PauliList (#7712)
• Add internal routine for canonicalisation of control-flow builders (#8627)
• Composite key for Primitives (#8604)
• Raise error for missing bounds in optimizer SNOBFIT (#8638)
• Fix OpenQASM 3 built-ins with classical conditions (#8731)
• Clean up text drawer compression issues (#8588)
• Use np.array_split instead of np.split to support uneven splits in spsa._batch_evaluate (#8634)
• Fix LaTeX drawer on split-filesystem systems (#8629)
• Fix decomposition for a single qubit and clbit (#8614)
• Fix VQD callback not being used (#8576)
• Add logic to return channels to FakeBackendV2 (#8444)
• Fix QuantumCircuit.compose within control-flow scopes (#8570)
• Fix QPY serialisation of ControlledGate with open controls (#8571)
• accept single qubit in initialize to fix #8408 (#8463)
• Fix global phase in inverse of UCGate (#8508)
• Changing aer_simulator_statevector checking method (#8411)
• Fix ParameterExpression.is_real if symengine is installed (#8456)
• Fix MPL and LaTeX circuit drawer when idle_wires=False and there are barriers (#8321)
• Fix converting VectorStateFn to a CircuitStateFn (#8405)
• Fix handling of numpy arrays for indices in marginal_distribution (#8288)
• Fix EvolvedOp.to_instruction (#8384)
• Fix Optimizer reconstruction from settings (#8381)
• Fix Uc gate global phase (#8231)
• Fix bug in circuit decompose (#8364)
• Fix pairwise entanglement (#8346)
• Switched to StandardScaler from deprecated normalize in NaturalGradient (#8299)
• fix limit_amplitude bug (#8308)
• Fix UnitaryGate.qasm() with unused qubits (#8234) (#8243)
• Fix UnitaryGate.qasm() with unused qubits (#8234)

Qiskit Terra 0.22.0rc1

Changelog

Deprecated

• Switch to primitive support in QNSPSA (#8682)
• Pending deprecate algo eigen_solvers (#8651)
• Clifford does not use StabilizerTable as internal data and PendingDeprecation of PauliTable and StabilizerTable (#7269)
• Pending deprecate algorithms (#8703)
• Rewrite Amplitude Estimators with Primitives (#8656)
• Quantum Phase Estimation algorithms with primitives. (#8666)
• Support Sampler in Grover (#8647)
• Prepare for removal of tweedledum as a requirement (#8738)
• Adds observable evaluator with primitives. (#8683)
• Time Evolution Framework with primitives. (#8681)
• deprecate qiskit.pulse.utils.deprecated_functionality in favor of qiskit.utils.deprecation.deprecate_function (#8696)
• Deprecate Algorithms Factorizers and Linear Solvers (#8617)
• Add run method to primitives (#8382)

Added

• Modify preset pass managers for control-flow support (#8830)
• Add controlflow handling to stochastic swap pass (#8418)
• Add support for custom backend transpiler stages (#8648)
• Update GateDirection and checker for control flow (#8822)
• Add control-flow support to GatesInBasis (#8823)
• plot_histogram now a valid histogram, plot_distribution for non-discrete data (#8762)
• Sampled expectation value for distributions (#8748)
• Implementing pluggable HighLevelSynthesis (#8548)
• Handle control-flow in DenseLayout (#8742)
• Switch to primitive support in QNSPSA (#8682)
• add controlflow handling to CheckMap transpiler pass. (#8793)
• Add BackendSampler for Sampler from an arbitrary backend (#8668)
• Add backend estimator for estimator from an arbitrary backend (#8736)
• Sampler-based VQE for diagonal operators, plus QAOA (#8669)
• Make VF2Layout and VF2PostLayout work with control flow (#8804)
• Add control-flow support to "properties" transpiler passes (#8763)
• Implement eigensolvers (VQD) with primitives (#8640)
• Clifford does not use StabilizerTable as internal data and PendingDeprecation of PauliTable and StabilizerTable (#7269)
• add control flow support to UnitarySynthesis pass (#8565)
• Add conversion transpiler pass from c_if to IfElseOp (#8764)
• Parameter handling in SparsePauliOp (#8620)
• Migrating AdaptVQE to Qiskit Terra (#7930)
• Add BackendV2Converter class for treating BackendV1 as BackendV2 (#8759)
• Add optimization to quantum shannon decomposition (#8092)
• VQE implementation with estimator primitive (#8702)
• Remove symbolic pulse subclass implementation (#8278)
• Improving memory consumption of DagDependency when lists of transitive predecessors and successors are not required (#8525)
• Rewrite Amplitude Estimators with Primitives (#8656)
• Quantum Phase Estimation algorithms with primitives. (#8666)
• Implemented TrotterQRTE algorithm with primitives. (#8706)
• Support Sampler in Grover (#8647)
• Implemented PVQD algorithm with primitives. (#8705)
• adding FakeGeneva (#8322)
• Add FakeAuckland backend to fake provider (#8467)
• Add FakeOslo backend to fake provider (#8358)
• adding FakePerth (#8344)
• Allow DAG-node substitution without overriding conditions (#8615)
• Adds observable evaluator with primitives. (#8683)
• Edge coloring for the Commuting2qGateRouter (#8341)
• Pulse reference mechanism (#8005)
• Add BaseResult functionality to primitives module (#8091)
• Time Evolution Framework with primitives. (#8681)
• Add CS, CSdg and CCZ gates to the CNOTDihedral class (#8673)
• feat: support sum(LinearMixin) (#8722)
• Default run_options for Primitives (#8513)
• Gradients with the primitives (#8528)
• Fidelity interface using primitives (#8303)
• Add curve fill control option to pulse drawer (#8658)
• Add ResetAfterMeasureSimplification transpiler pass (#8330)
• Enable multiple parallel seed trials for SabreSwap (#8572)
• Implements two-step tapering (#8590)
• Add stage plugin interface for transpile (#8305)
• Steppable Optimizer (#8170)
• Add CS and CCZ gates (#8583)
• Variational Quantum Time Evolution algorithm. (#8152)
• Add barrier labels and display in 3 circuit drawers (#8440)
• Adding Cliffords to QuantumCircuits as Operations (#7966)
• Improve the performance of taper in opflow (#8410)
• Refactoring commutativity analysis and a new commutative inverse cancellation transpiler pass (#8184)
• Add run method to primitives (#8382)
• Projected Variational Quantum Dynamics (#8304)
• Add optimization for TwoLocal synthesis when entanglement='full' (#8335)
• Reimplement SabreSwap heuristic scoring in Rust (#7977)
• Tensored fitter (#8345)
• Add wire_order option to all circuit drawers to allow defining the order of the wires (#8173)
• Added argsort and sort method to SparsePauliOp (#8016)
• add atol parameter to SparsePauliOp.equiv (#8281)
• Combine circuits with clbits onto those with none (#7823)
• Add shots option to primitives (#8137)

Changed

• Remove tweedledum from macOS arm64 immediately (#8849)
• Fix reverse permutation for transpiled circuits in Operator.from_circuit (#8802)
• Remove pulse defaults for old fake 20q backends (#8665)
• Use Sabre by default for optimization levels 1 and 2 (#8552)
• Remove symbolic pulse subclass implementation (#8278)
• Quantum Phase Estimation algorithms with primitives. (#8666)
• Support Sampler in Grover (#8647)
• Update ProbDistribution and QuasiDistribution to store the number of bits if bitstrings w/o prefix are given (#8464)
• Fix handling of holes in physical bits list in Layout (#8767)
• Default set to turn off approximation_degree (#8595)
• Prepare for removal of tweedledum as a requirement (#8738)
• Pulse reference mechanism (#8005)
• Move circuit drawer files to qiskit.visualization.circuit (#8306)
• Reimplement SabreSwap heuristic scoring in Rust (#7977)

Removed

• Remove deprecated pulse-builder contexts (#8697)
• Remove deprecated methods and arguments in quantum_info (#8510)
• Fix maxfun default in L_BFGS (#8285)
• Argument epsilon and factr of optimizers L_BFGS_B and factr of P_BFGS has been removed (#8210)
• Deprecated QiskitIndexError removed (#8209)

Fixed

• Modify preset pass managers for control-flow support (#8830)
• Fix handling of 1q gates in UnitarySynthesis with target (#8847)
• Fix DenseLayout when loose bits are present in input circuit (#8843)
• Fix reverse permutation for transpiled circuits in Operator.from_circuit (#8802)
• Introduce observable key for Estimator (#8837)
• Resolve classical conditions in QuantumCircuit.while_loop (#8833)
• Update GateDirection and checker for control flow (#8822)
• "cregbundle set to False" warning should not raised when no classical bits are involved (#8689)
• Add control-flow support to "properties" transpiler passes (#8763)
• Fix for None in state_to_latex latex output (#8273)
• Fix flipping of gate direction in transpiler for CZ gate (#8625)
• add state_to_latex prefix kwarg (#8461)
• Fix handling of holes in physical bits list in Layout (#8767)
• Fix printing an empty PauliList (#7712)
• Add internal routine for canonicalisation of control-flow builders (#8627)
• Composite key for Primitives (#8604)
• Raise error for missing bounds in optimizer SNOBFIT (#8638)
• Fix OpenQASM 3 built-ins with classical conditions (#8731)
• Clean up text drawer compression issues (#8588)
• Use np.array_split instead of np.split to support uneven splits in spsa._batch_evaluate (#8634)
• Fix LaTeX drawer on split-filesystem systems (#8629)
• Fix decomposition for a single qubit and clbit (#8614)
• Fix VQD callback not being used (#8576)
• Add logic to return channels to FakeBackendV2 (#8444)
• Fix QuantumCircuit.compose within control-flow scopes (#8570)
• Fix QPY serialisation of ControlledGate with open controls (#8571)
• accept single qubit in initialize to fix #8408 (#8463)
• Fix global phase in inverse of UCGate (#8508)
• Changing aer_simulator_statevector checking method (#8411)
• Fix ParameterExpression.is_real if symengine is installed (#8456)
• Fix MPL and LaTeX circuit drawer when idle_wires=False and there are barriers (#8321)
• Fix converting VectorStateFn to a CircuitStateFn (#8405)
• Fix handling of numpy arrays for indices in marginal_distribution (#8288)
• Fix EvolvedOp.to_instruction (#8384)
• Fix Optimizer reconstruction from settings (#8381)
• Fix Uc gate global phase (#8231)
• Fix bug in circuit decompose (#8364)
• Fix pairwise entanglement (#8346)
• Switched to StandardScaler from deprecated normalize in NaturalGradient (#8299)
• fix limit_amplitude bug (#8308)
• Fix UnitaryGate.qasm() with unused qubits (#8234) (#8243)
• Fix UnitaryGate.qasm() with unused qubits (#8234)

Qiskit Terra 0.21.2

Changelog

Fixed

• Add logic to return channels to FakeBackendV2 (#8444) (#8599)
• Improve the performance of taper in opflow (backport #8410) (#8514)
• Fix QuantumCircuit.compose within control-flow scopes (#8570) (#8579)
• Fix QPY serialisation of ControlledGate with open controls (#8571) (#8578)
• Fix global phase in inverse of UCGate (#8508) (#8536)
• Changing aer_simulator_statevector checking method (#8411) (#8499)
• Fix ParameterExpression.is_real if symengine is installed (#8456) (#8462)