Qiskit Terra 0.20.1

Changelog

Fixed

• Fix potential infinite loop in SabreSwap (#7970) (#7971)
• Make SabreSwap account for clbits in predecessors (#7952) (#7957)
• Fix QPY deserialization of UCRX, UCRY, and UCRZ gates (#7933) (#7941)
• Fix dag visualization for DAGCircuits without registers (#7923) (#7938)
• Allow shots to be a numpy.int64 (#7824) (#7934)
• Bug fix for DRAG pulse beta validation (#7925) (#7928)
• Fix small typos and improve consistency in primitive docs (#7897) (#7905)
• Fix init_observable for Pauli (#7898) (#7899)
• Fix return type from schedule() with a list of one entry (#7885) (#7889)
• Fix plot_error_map with BackendProperties set or BackendV2 (#7880) (#7887)
• Fix of eval_observables() when quantum_circuit is a StateFn. (#7863) (#7881)
• Fix hard-coded sleep in run_circuits (#7793) (#7860)
• Fixes Clifford, Pauli, CNOTDihedral to handle Delay (#7850) (#7854)

Qiskit Terra 0.20.0

Release Notes: https://qiskit.org/documentation/release_notes.html#terra-0-20-0

Changelog

Deprecated

• Need to remove max_credits (#7409)
• Deprecate SuzukiTrotter odd order (#7426)
• Reinstate and deprecate loose measure and reset functions (#7376)

Added

• Add qubit_properties to Target class (#7736)
• Make plot_gate_map generic for any backend (#7814)
• Make VF2Layout pass Target aware (#7735)
• Add BackendV2 mocked backend (#7643)
• Make GatesInBasis transpiler pass Target aware (#7548)
• Gradient Framework Update - Lin. Comb. for Imag Parts (#7632)
• Allow ParameterExpression values in TemplateOptimization pass (#6899)
• Separate State Preparation from Initialize (#7666)
• Reference implementation of Estimator and Sampler Primitives (#7780)
• DAGCircuit._copy_circuit_metadata is widely used and it should be public (#7803)
• Add XXMinusYYGate (#7799)
• Rework BasisTranslator for faster basis search. (#7211)
• Replace AlignMeasures with ConstrainedReschedule for pulse alignment (#7762)
• Add an option to choose a framework to pauli.evolve(clifford) (#7683)
• Dynamical Decoupling pass with pulse alignment (#7760)
• Make marginal_counts act on Result memory (#7711)
• Make UnitarySynthesis transpiler pass Target aware (#7775)
• Add check for the size during transpiler optimization (#7542)
• Make DenseLayout transpiler pass target aware (#7776)
• Moved and refactored vqe._eval_aux_ops method. (#7758)
• Make ConsolidateBlocks transpiler pass target aware (#7778)
• dict-based SparsePauliOp.simplify (#7656)
• Allow initializing SparsePauliOps from index lists (#7401)
• Allow callables as optimizers in VQE and QAOA (#7191)
• Add support for custom metadata serializers to QPY load() and dump() (#7550)
• Reimplement DenseLayout as a Parallel Algorithm in Rust (#7740)
• Replace pauli expectation value cython with multithreaded rust implementation (#7702)
• Implement multithreaded stochastic swap in rust (#7658)
• Parameters in InstructionDurations. (#7321)
• Define LinearFunction class and collect blocks of gates that make a LinearFunction (#7361)
• Use pulse configuration in fake Bogota, Rome, Manila and Santiago (#7688)
• Move QPY serializer to own module (#7582)
• Add fake backends for new IBM Quantum systems (#7392)
• Expose cutoff tolerances in Z2Symmetries (#7598)
• Add Operator.from_circuit constructor method (#7616)
• Optimise import qiskit with lazy imports (#7525)
• Expose parameter_prefix in Z(Z)FeatureMap (#7590)
• Merge paramterized u1, u2 and p gate in Optimize1qGates (#7579)
• Add __repr__ to DAG nodes (#7559)
• Add cross-build wheel jobs for ppc64le and s390x (#7549)
• Add support for Python 3.10 (#7102)
• Nesting FlowControllers to allow nested conditionals in pass manager (#6962)
• Add XYGate (#7164) (#7229)
• Add the dark version of the IQX color scheme (#7186)

Changed

• Add dummy extra for CSPLayout (#7842)
• Make marginal_counts act on Result memory (#7711)
• Give PauliEvolutionGates the same name-attribute for all instances (#7638)
• Improve sum op equals (#7681)
• Split scheduling pass into scheduling and padding (#7709)
• Relocate mock backends from qiskit.test.mock to qiskit.mock (#7437)
• Implement multithreaded stochastic swap in rust (#7658)
• Add __slots__ for Bit subclasses (#7708)
• Use VF2Layout in all preset passmanagers (#7213)
• Rework QuantumCircuit._append and bit resolver (#7618)
• Fix ASAP/ALAP scheduling pass (#7655)
• Bump minimum supported symengine version for built-in pickle support (#7682)
• Use contract_nodes from retworkx in DAGCircuit. (#7665)
• Use manylinux2014 on all Linux builds (#7566)
• Drop support for 32bit py310 wheel builds (#7553)

Removed

• Clean up old deprecation warnings in circuits module (#7011)
• Replace pauli expectation value cython with multithreaded rust implementation (#7702)
• Remove deprecated methods in qiskit.algorithms (#7257)
• Remove deprecated pass_manager arg to transpile() (#7679)
• Remove probability_distributions module (#7562)
• Remove ParametrizedSchedule (#6949)
• Drop support for Python 3.6 (#7295)

Fixed

• Add equivalences from CX to CPhase+U and CRZ+U (#7013)
• Add simple symbol table to QASM 3 exporter (#7744)
• dict-based SparsePauliOp.simplify (#7656)
• Add transpile() support for extracting instruction schedule map from BackendV2 (#7765)
• Fix HHL().construct_circuit() properly encoding the eigenvalues of certain matrixes (#7402)
• AmplitudeEstimator/Amplifier minor refactoring and docs. (#7752)
• Fix display of sidetext gates with conditions (#7673)
• Fix endianness in result.mitigator (#7689)
• Fix partial_trace when not removing subsystems (#7613)
• Changes to readout mitigator tests (#7482)
• Fix phase management in StabilizerState.expectation_value (#7460)
• Fix reverse_bits with registerless bits in all 3 circuit drawers (#7319)
• Fix gates with conditions alignment when folding in mpl drawer (#7545)
• Do not emit IGate from PauliGate and opflow.I (#7569)
• Fix QPY support for control flow instructions (#7584)
• Fix QuantumInstance compatibility with BackendV2 (#7563)
• Efficiently check PauliSumOps for diagonality in CVaRMeasurement (#7574)
• Fix PauliSumOp.permute to not change the original object (#7339)
• Fix qubit order for 2-qubit LieTrotter evolution synthesis (#7551)
• Fix the inverse method of PauliEvolutionGate (#7524)
• Warn not error on overflow in QFT (#7541)
• Fix error in Target non-global operation method with ideal gates (#7554)
• Add durations of pulse gates from DAG calibrations (#7463)
• Check the existence of AncillaQubits before adding (#7450)
• Fix QI modifying input transpiled circuit on execute (#7484)
• Reject other QASM versions in QASM 2 parser (#7456)
• Improve error message in DAGCircuit.draw for invalid filenames (#7447)
• Prevent duplicate bits in registers (#7510)
• Fix display of negative fractions in arrays (#7518)
• Fix display of register names with multiple underscores in mpl and latex drawers (#7459)
• Fix parameter order in VQE, if the ansatz is resized (#7479)
• Fix Bloch sphere with Matplotlib 3.3 and 3.4 (#7517)
• Give FakeOpenPulse2Q qubit T2 times and readout errors (#7425)
• Fix QPY serialization of no-op instructions (#7431)
• Fix registerless bit conditions in circuit_to_instruction (#7395)
• Fix register conditions in control-flow builders (#7389)
• Fix ParameterVector handling in QPY serialization (#7381)
• Fix InverseCancellation pass to handle gates of different names. (#7383)
• Add QPY serialization for PauliEvolutionGate (#7374)
• Reinstate and deprecate loose measure and reset functions (#7376)
• Fix copying control-flow bodies in builder interface (#7368)
• Fix circuit instruction conversion with loose bits (#7365)

Qiskit Terra 0.19.2

Changelog

Added

• Add support for Python 3.10 (backport #7102) (#7546)

Changed

• Add support for Python 3.10 (backport #7102) (#7546)

Fixed

• Fix QPY support for control flow instructions (#7584) (#7606)
• Fix QuantumInstance compatibility with BackendV2 (#7563) (#7605)
• Efficiently check PauliSumOps for diagonality in CVaRMeasurement (#7574) (#7602)
• Fix PauliSumOp.permute to not change the original object (#7339) (#7599)
• Fix qubit order for 2-qubit LieTrotter evolution synthesis (#7551) (#7591)
• Fix the inverse method of PauliEvolutionGate (#7524) (#7587)
• Warn not error on overflow in QFT (#7541) (#7575)
• Fix error in Target non-global operation method with ideal gates (#7554) (#7561)
• Check the existence of AncillaQubits before adding (#7450) (#7555)
• Fix QI modifying input transpiled circuit on execute (#7484) (#7547)
• Reject other QASM versions in QASM 2 parser (#7456) (#7536)
• Improve error message in DAGCircuit.draw for invalid filenames (#7447) (#7531)
• Prevent duplicate bits in registers (#7510) (#7530)
• Fix display of register names with multiple underscores in mpl and latex drawers (#7459) (#7527)
• Fix parameter order in VQE, if the ansatz is resized (#7479) (#7526)
• Fix Bloch sphere with Matplotlib 3.3 and 3.4 (#7517) (#7520)
• Give FakeOpenPulse2Q qubit T2 times and readout errors (#7425) (#7474)
• Fix QPY serialization of no-op instructions (#7431) (#7432)
• Fix registerless bit conditions in circuit_to_instruction (#7395) (#7406)

Qiskit Terra 0.19.1

Changelog

Fixed

• Fix register conditions in control-flow builders (#7389) (#7393)
• Fix ParameterVector handling in QPY serialization (#7381) (#7390)
• Fix InverseCancellation pass to handle gates of different names. (#7383) (#7384)
• Add QPY serialization for PauliEvolutionGate (#7374) (#7382)
• Reinstate and deprecate loose measure and reset functions (#7376) (#7380)
• Fix copying control-flow bodies in builder interface (#7368) (#7371)
• Fix circuit instruction conversion with loose bits (#7365) (#7369)

Qiskit Terra 0.19.0

Changelog

Full release notes: https://qiskit.org/documentation/release_notes.html#terra-0-19-0

Deprecated

• Fix arguments for RZXCalibrationBuilder and EchoRZXWeylDecomposition (#7331)
• Add full deprecation warning to util.py (#7212)
• Fix resource resolution in InstructionSet.c_if (#7255)
• Deprecate MCMT label (#7161)
• Migrate measure mitigation from ignis for QuantumInstance (#6867)
• Switch PauliTable to PauliList in SparsePauliOp (#6826)
• Deprecate the CouplingMap.subgraph() method (#6823)
• Replace DAGNode class with OpNode, InNode, and OutNode classes (#6567)

Added

• Readout mitigator classes (#6485)
• Add control-flow builder interface (#7282)
• Add BackendV2 abstract class (#5885)
• Two-step transpilation for variational algorithms (#7217)
• Implement Qdrift as ProductFormula (#7281)
• Add add_bits parameter to QuantumCircuit.measure_all (#7305)
• Rework RemoveFinalMeasurements pass (bug fixes) (#7196)
• Adapted grover.amplify to omit is_good_state check in certain cases (#7302)
• Approximate Quantum Compiler (#6727)
• Make numeric casts of ParameterExpression flexible (#6802)
• Add Instruction subclasses for control flow. (#7123)
• Optimal Synthesis into RXX(theta) (#6551)
• Add SparsePauliOp.sum (#7202)
• VF2 Layout : The layout allocation as a subgraph isomorphism problem (#6620)
• Improve performance of ConsolidateBlocks pass (#7185)
• PauliEvolution gate (#6975)
• Speed-up SparsePauliOp._add (#7138)
• Implement a from_backend method for PassManagerConfig (#7163)
• Reformatted the getter and setters of the VQE class (#7099)
• Add indexing and inner product to Statevector (#7095)
• Add CollectMultiQBlocks pass to find multiqubit blocks in a circuit (#4747)
• Only execute TimeUnitConversion as needed in preset passmanagers (#6803)
• QASM3 exporter (#6565)
• Support Dict[str, OperatorBase] for aux_operators (fix #6772) (#6870)
• Add GatesInBasis analysis pass (#6832)
• Use eigh, eigsh in NumPyEigensolver (#6987)
• EchoRZXWeylDecomposition Transpiler Pass (#6784)
• Migrate measure mitigation from ignis for QuantumInstance (#6867)
• Add min_qubits kwarg to UnitarySynthesis pass (#6349)
• Add unitary synthesis plugin interface (#6124)
• Fixes issue #6872, #6821 by adding finite control loops with flags (#6909)
• Add QuantumCircuit.find_bit to find index and Registers for a Bit. (#6621)
• Add hexagonal lattice CouplingMap (#7062)
• Add from_heavy_hex() and from_heavy_square() generator methods to CouplingMap (#6959)
• Fixed issue 5920 (#6294)
• Feature: optimize 1Q gates by commutation and resynthesis (#6992)
• filter_function for circuit.depth() and circuit.size() (#6998)
• Use retworkx for substitute_node_with_dag (#6302)
• add termination callback to SPSA (#6839)
• allow negative eigenvalues in hhl (#6971)
• Add the __repr__ method for Instructions (#6932)
• fixed issue 6544 by propagating limit_amplitude to ParametricPulse classes (#6618)
• Add pulse gate pass (#6759)
• Generalize CXCancellation optimization pass to generic gate-inverse pairs (#6855)
• Add drawing of Statevector using ket notation (#6154)
• Detach prefix util function (#6885)
• New plot_coupling_map(), like plot_gate_map() but without a backend (#6751)
• Grouping commuting Pauli strings in quantum_info (#6690)
• Added support for multiple image formats in QuantumCircuit.draw() (#6487)
• Support non-float global phase in QPY (#6824)
• Add fake backends for new IBM Quantum systems (#6808)
• Replace DAGNode class with OpNode, InNode, and OutNode classes (#6567)
• Add gate error and balanced objective to BIP mapper (#6778)
• Ensure QNSPSA allows for batching (#6776)
• Add qubit_subset option to BIPMapping pass (#6756)
• Text drawer extended for drawing circuits with single classical bit conditioning (#6261)
• implement coeffs method for SummedOp (Issue #5931), matching coeffs m… (#6610)

Changed

• Define all for qiskit (#7274)
• Switch default routing/layout method to sabre for opt level 3 (#7205)
• Remove overrides of standard warning behaviour (#7204)
• Bump minimum matplotlib version to 3.3.0 (#7175)
• Only execute TimeUnitConversion as needed in preset passmanagers (#6803)
• Improve number of qubit scaling for random_circuit() (#7030)
• Stop casting numpy floats on ParameterExpression bind (#7014)
• Replace Optimizer.optimize by Optimizer.minimize (#6866)
• Improving default BIP pass (#6948)
• More performance improvements for Collect2qBlocks (#6680)
• Allow QuantumCircuit construction with zero qubit or clbit count (#6800)
• Add type hints to gates and QuantumCircuit (#6831)
• Respect backend defaults for BackendV1 path in execute() (#6693)
• Exclude bip-mapper extra from all (#6843)
• QuantumCircuit.decompose() does not take a single gate, but a set of gates to decompose. (#6587)

Removed

• Remove deprecated operators of BaseOperator (#7291)
• Remove deprecated code from pulse module (#7267)
• Remove deprecated functionality from extensions, qasm, and dagcircuit modules (#7208)
• Reformatted the getter and setters of the VQE class (#7099)
• Remove deprecated schemas and validation modules (#6558)
• Fix QuantumCircuit.assign_parameters docstring (#6723)

Fixed

• Unroll3qOrMore before layout allocation stage in the levels 0, 1, and 2 (#7251)
• Fix single clbit display in condition for all 3 circuit drawers (#7285)
• Rework RemoveFinalMeasurements pass (bug fixes) (#7196)
• Fix Hoare optimizer failure for successive gates of three (#7278)
• Fix compatibility with Matplotlib 3.5 (#7301)
• Return fast from transpile with empty input (#7288)
• Fix pulse parameter formatter bug with symengine (#7265)
• Fix resource resolution in InstructionSet.c_if (#7255)
• Fix tapering of zero/empty operators (#7262)
• Fix ZeroDivisionError in qiskit_backend_overview (#7260)
• Fix decomposition of C3SXGate (#7230)
• Fix permute issue in PauliSumOp (#7240)
• Fix NLocal.add_layer (#7226)
• Fix QAOA bugs (#7225)
• Fix TypeError in PauliExpectation.compute_variance (#7169)
• Speed-up SparsePauliOp._add (#7138)
• Use default drawer style from config if unset (#7188)
• Reformatted the getter and setters of the VQE class (#7099)
• Make qasm output valid gate names to fix #7052 (#7157)
• HHL QuantumInstance getter/setter fix. (#7168)
• Remove calibration circuits results in QuantumInstance execute (#7140)
• Fix #7006 by tracking availability of clbits in scheduling (#7085)
• Fix usage of deprecated sympy method expr_free_symbols() (#7117)
• Fixing gates unrolling for gradients. (#6918)
• Fix QAOA parameter handling (#6828)
• Small improvement QFT code (#6887)
• Fix 1Q gate errors in plot_error_map (#7037)
• Handle ScheduleBlock in execute (#7019)
• Allow binding complex values to parameters in Opflow coefficients (#6977)
• Avoid configuring pulse defaults in circuit assembly unless needed (#7047)
• Fix ConfigurableFakeBackend.name (#7022)
• MPL drawer extended for drawing circuits with single classical bit conditioning (#6259)
• Fix display of registerless bits in all drawers and change display of one-bit registers (#6942)
• Fix decomposing empty gates (#6997)
• Fix measure with condition display in mpl and latex drawers (#6822)
• Fix PiecewiseChebyshev for constant functions (#6707)
• Modify copy of instruction in .qasm() method (fix #6687) (#6952)
• Fix instmap pickle bug in Python3.6 (#6950)
• Correctly handle parametric pulse assemble() kwarg if empty list (#6922)
• Fix registerless bit naming collisions in QASM (#6856)
• Fix mpl circuit drawing duplication in ipykernel 6 (#6890)
• Change float to complex for return from ParameterExpression gradient (#6847)
• Fix 'ax' and 'figwidth' options to mpl drawer (#6675)
• Build aarch64 wheels in github actions with QEMU emulation (#6844)
• Fix QNSPSA settings (#6818)
• Handle single bit conditions in QPY (#6775)
• Fix JupyterLab compatibility with job watcher widget (#6598)
• Fix subgraph handling of non-contiguous nodelist argument (#6738)
• Ensure a non-parameterized global phase in EvolvedOperatorAnsatz is a float (#6792)
• Fix CompleteMeasFitter not imported in QuantumInstance (#6782)
• Add circuit calibrations to disassembler (#5661)
• Fixes circuit_to_instruction() method for circuits containing single bit conditions (#6537)
• Fix fake backend kwargs (#6743)
• Change operator comparison from np.array_equal to np.allclose (#6473) (#6644)
• Fix QuantumCircuit.assign_parameters docstring (#6723)
• Handle complex parameters and blueprint circuits in QPY (#6713)

Qiskit Terra 0.18.3

Changelog

Fixed

• Allow binding complex values to parameters in Opflow coefficients (#6977) (#7054)
• improve warning when 1q synthesis emits long strings (#7048) (#7050)
• Avoid configuring pulse defaults in circuit assembly unless needed (#7047) (#7049)

Qiskit Terra 0.18.2

Changelog

Fixed

• Correctly handle parametric pulse assemble() kwarg if empty list (#6922) (#6925)
• Fix mpl circuit drawing duplication in ipykernel 6 (backport #6890) (#6900)

Qiskit Terra 0.18.1

Changelog

Changed

• Exclude bip-mapper extra from all (#6843) (#6846)

Fixed

• Build aarch64 wheels in github actions with QEMU emulation (#6844) (#6854)
• Fix QNSPSA settings (#6818) (#6837)
• Handle single bit conditions in QPY (#6775) (#6835)
• Fix JupyterLab compatibility with job watcher widget (#6598) (#6834)
• Fix subgraph handling of non-contiguous nodelist argument (#6738) (#6820)
• Ensure a non-parameterized global phase in EvolvedOperatorAnsatz is a float (#6792) (#6805)
• Fix CompleteMeasFitter not imported in QuantumInstance (#6782) (#6790)
• sx and sxdg colored as cliffords in mpl (#6765) (#6773)
• Fix fake backend kwargs (#6743) (#6747)
• Change operator comparison from np.array_equal to np.allclose (#6473) (#6644) (#6739)
• update docstrings in UnitarySynthesis pass (#6737) (#6745)
• Handle complex parameters and blueprint circuits in QPY (#6713) (#6730)

Qiskit Terra 0.18.0

Changelog

Deprecated

• Deprecate the QiskitIndexError exception class (#6642)
• Deprecate legacy provider interface (#6337)
• use ParameterExpression.gradient directly (#6335)
• Add @Property and setter for DAGNode.name (#6199)
• Change attribute most_likely_phase to phase in PhaseEstimator (#6238)
• Replace DAGNode.condition with DAGNode.op.condition (#6110)

Added

• Pulse optimal decomposition of su4 for CNOT (#6581)
• Add the option to wrap circuits in QuantumCircuit.compose (#6659)
• Add dynamical decoupling transpiler pass (#6619)
• Add align measure pass (#6673)
• Add settings property to optimizer classes in qiskit.algorithms.optimizers (#6545)
• BIP mapping pass (#6580)
• Add PauliList class (#5993)
• Add support for faulty directed gate (#6407)
• Move gate, control, and param label selections from 3 circuit drawers to utils (#6078)
• Add option to sort by values to plot_histogram (#6592)
• latex-source (and latex) circuit drawer support for standalone (and cleaner output) (#6483)
• QuantumCircuit.ccx(..., ctrl_state=...) parameter added for consistency with other controlled gates (#6508)
• Add line_discipline kwarg to job_monitor function (#5691)
• Allow users to optionally specify Isometry tolerance (#6482)
• Add option to set encoding when saving Qasm to file (#5842)
• Add a new transpiler pass to remove all barriers (#6329)
• Add plain Gradient Descent optimizer (#6459)
• Arithmetic circuit library: multipliers (#6470)
• Create function to set user config (#5943)
• Add StabilizerState class to qiskit.quantum_info.states (#5907)
• Classical conditioning on individual classical bits now supported (#6018)
• Added the class RZXCalibrationBuilderNoEcho (#6300)
• Arithmetic circuit library: Adders (#6164)
• 2-SPSA and QN-SPSA (#6405)
• Add distributions results objects (#6377)
• Add SciPyOptimizer (#6319)
• Add qpy serialization format (#5578)
• Issue 6326 (#6327)
• Adding IBMQ_guadalupe as a mock backend (#6265)
• Latex drawings now show numbering of active wires in custom instructions (#6153)
• Adding Pauli and city to the draw option for statevector (#6146)

Changed

• Wrap library circuits (#6634)
• Classical condition boxes are now drawn as bullets in text drawer (#6370)
• Move Gate.label to parent Instruction class (#6626)
• Make tweedledum a hard requirement (#6588)
• Don't enable multiprocessing by default on Python 3.9 (#6524)
• Enable lo frequencies to be passed in circuits (#6167)
• Using MissingOptionalLibraryError for consistency (#6098)
• save a PDF file if circuit.draw(..., filename=.pdf) (#6446)
• Use symengine for parameter and parameter expressions (#6270)
• Update fake backend and fake provider to use versioned interface (#6286)
• Support reps=0 in the n-local circuits (#6273)
• Remove deprecation for pulse instruction parameter method (#6277)
• Update circuit.delay to accept parameterized duration (Fix #6029) (#6225)
• ScheduleBlock 4/4 - add ScheduleBlock (#6158)
• Decompose controlled Pauli rotations in terms of Paulis (#4837)

Fixed

• Fix qasm output for composite gates (#5887)
• Fix Optimize1qGatesDecomposition length heuristic (#6553)
• Add Expectation Converter to Gradient Wrapper (#6274)
• fix bug in layout deletion (#6683)
• Fixed qc.num_connected_components() for circuits with bit conditioned gates (#6564)
• Fixed issue 6623 by raising errors for negative delay durations (#6625)
• Fix calibration handling of transpiler passes on gates with >2 qubits (#6655)
• fix 6547 (#6562)
• Delay support when loading from QASM2 (#6594)
• Improve error handling in creating Pauli with an invalid label (#5911)
• Fix quantum part of Shor's algorithm (#6310)
• Fix oracle_evaluation for PhaseOracle (#6365)
• Fix #6497 (opflow.expectations ignore coefficients) (#6500)
• TwoLocal entangling map works for numpy integers (#6556)
• qc.num_connected_components() now returns the correct output (#6519)
• Fix PiecewiseChebyshev does not work as expected when breakpoints = None (#6210)
• TwoLocal raises proper exception for reps input that is not int and added unit tests (#6522)
• Fix adding controls to an open controlled gate (#6309)
• Fixed NFT optimizer by including argument for args as supplied (#6527)
• Fix result aggregation when parameterized qobj is enabled with measurement mitigation (#5494)
• Fixed typo in LinearAmplitudeFunction docstring (#6491)
• Fix 2 problems with reverse_bits on all 3 circuit drawers (#5938)
• improve error message for LookaheadSwap pass (#6452)
• Matplotlib drawer fix for drawing custom instructions with classical register (#6339)
• Fix addition of PauliSumOp with parameters (#6316)
• Correctly require is_good_state on AmplificationProblem constructor (#6417)
• Respect max_experiments in QuantumInstance BackendV1 path (#6391)
• VQE with L_BFGS_B and P_BFGS supports Gradient (#6373)
• The text drawings of custom instructions with clbits are now drawn as expected (#6242)
• Drawing boxes of custom instructions extended to classical bits in latex (#6240)
• Fix 6159 (Remove Unexpected Warning of PauliExpectation and AerPauliExpectation) (#6281)
• Typo fix of controlled SWAP gate documentation (#6358)
• fix optimal num iterations (#6298)
• BasisTranslator skips translating gates already in target basis (#6350)
• Support multiplication of TaperedPauliSumOp with ParameterExpression (#6315)
• Fix behavior of instmap.add when partial function is specified (#6292)
• Fix schedule inline transform (#6322)
• plot_histogram does not raise for neg values (#6340)
• Add support on QuantumInstance/run_circuits for Backends that don't handle QasmQobj (#6299)
• Fix #6307 (PauliExpectation takes unnecessary adjoint when it converts operators) (#6318)
• fix empty check of block subroutine (#6325)
• Fix QuantumState._subsystem_probabilities (#6324)
• Fix expval pauli qargs bug (#6304)
• Fixes disassembler error for mcx gate (#6291)
• fix error when dag_drawer removes a temporary file that is still open (#6266)
• Fix bug in Pauli.evolve for CZ, CY, Swap (#6287)
• object generation fix (#6282)
• Bug fixes for callback function in SPSA (#6253)
• fix global phase in initializer (#6236)
• Small fixes in the SparseVectorStateFn (#6272)
• BooleanExpression expression breaks label in the latex circuit drawer (#6260)
• Bugfix in clifford instruction name (#6251)
• Unroller error more descriptive when reaching a node without definition (#6235)
• Don't remove swaps with conditions in OptimizeSwapBeforeMeasure (#6239)
• mpl circuit drawer does not change the style dict in-place (#6190)
• Pulse Builder: fix seconds_to_samples() for numpy arrays (#6213)
• Better tolerances for gate decompositions (#5827)
• global phase reverse_bits (#6206)
• Fix error on construct_circuit 'a' parameter handling (#6216)
• Allow custom gate color in the MPL circuit drawer (#6184)
• Fix params for a controlled - UnitaryGate (#5780)
• better unrolling in preset passmanagers (#6133)
• Fix SPSA recalibration (#6173)
• Preserve global phase in Unroller (#6155)
• Ensure we include all cython files in sdist (#6163)
• MCZ is now drawn correctly in matplotlib (#5981) (#6008)

Qiskit Terra 0.17.4

Changelog

Fixed

• Respect max_experiments in QuantumInstance BackendV1 path (backport #6391) (#6414)