Qiskit Terra 0.25.0

Release notes: https://qiskit.org/documentation/release_notes.html#terra-0-25-0

Changelog

Deprecated

• Add deprecation warning to algs module (#10406)
• qiskit_version deprecation (#10242)
• Remove method qasm from Instruction and all of its subclasses (#10399)
• Deprecate namespace packaging hooks (#10322)
• Deprecate pulse Call instruction (#10247)
• Deprecate get_vf2_call_limit in preset_passmanagers (#10065)
• Deprecate circuit-library Jupyter magic (#9940)

Added

• Add full Expr support to StochasticSwap (#10506) (#10510)
• Allow circuits w/ control flow in O2 and O3 (#10372)
• Optimize ConsolidateBlocks pass (#10365)
• Add Expr support to OpenQASM 3 exporter (#10408)
• Support control flow in ConsolidateBlocks (#10355)
• Add display of internal circuits for ControlFlowOps to mpl circuit drawer (#10207)
• Add flatten option to the NLocal family (#10269)
• Improve parameter-binding performance of large instructions (#10284)
• Add block collection options split_layers and collect_from_back (#10254)
• Add in qpy the support for Discriminator and Kernel (#10327)
• Add Expr support to DAGCircuit.substitute_node_with_dag (#10381)
• Add Expr support in DAGCircuit.substitute_node (#10382)
• Add a new argument concurrent_measurements to target class (#10258)
• Add Expr support to DAGCircuit.replace_block_with_node (#10383)
• Add find_bit method to DAGCircuit to get mapping of bits to positional index (#10128)
• Add Expr support to QPY for conditions and targets (#10392)
• Add Expr support to the control-flow builders (#10400)
• Add Expr support to DAGCircuit.compose (#10377)
• Add Expr support to QuantumCircuit.compose (#10375)
• Add separable_circuits method to DAGCircuit class (#9471)
• Add support for semantic equality checking of Exprs in DAGCircuit (#10367)
• Refactor output of OpenQASM 3 exporter to use fewer aliases (#10249)
• DAGCircuit: Add get_causal_cone method (#10325)
• Add get_dt_from_backend func to the builder command (#10253)
• Add Expr supprt to DAGCircuit simple constructors (#10362)
• Linear function usability improvements (#10053)
• Add Expr support to ControlFlowOp representation (#10358)
• Add initial representation of classical expressions (#10332)
• Relax wire_order restrictions in circuit visualization (#9893)
• Adding depth-5n synthesis algorithm for -CZ-CX- circuits (#9932)
• Add schmidt_decomposition function to quantum_info (#10104)
• Adding the feature of calculating entanglement measures negativity (#10134)
• Add HAS_PYGMENTS lazy tester (#9944)
• Allow multiplication of SparsePauliOp and ParameterExpression (#10264)
• Pass manager refactoring: add passmanager module (#10124)
• Added classical_predecessors method (#9980)
• Allow to normalize inputs on StatePreparation and Initialize (#7189)
• Add more 1q and 2q Pauli rotation equivalences (#7407)
• Add standard 1q Pauli equivalences to standard library (#10300)
• add abs method to ParameterExpression (#9309)

Changed

• Enable Sabre for control flow circuits at O1 (#10371)
• Refactor output of OpenQASM 3 exporter to use fewer aliases (#10249)
• Remove cyclic-definition handling from Clifford.from_circuit (#10441)
• Use rustworkx version of token_swapper (#10001)
• Use stable Python C API for building Rust extension (#10120)
• Assign values directly to fully bound parameters in quantum circuits (#10183)
• Switch QuantumCircuit.from_qasm_str and from_qasm_file to new parser (#9955)
• Drop support for Python 3.7 (#10009)
• Set max_trials for VF2Layout in preset pass managers. (#10054)

Removed

• Remove list argument broadcasting and simplify transpile() (#10291)
• Remove deprecated InstructionSet circuit_cregs argument (#10302)
• Remove deprecations from mpl circuit drawer (#10020)

Fixed

• Fix final_layout when VF2PostLayout finds a better layout (#10466) (#10493)
• Fix empty-barrier handling in OpenQASM 2 (#10469) (#10491)
• raise an exception with a custom gate with clbits or no qubits (#10438) (#10485)
• Fix Pulse channel index validation (#10476) (#10486)
• Fix UnassignedDurationError of update_from_instruction_schedule_map (#10447)
• Add Expr support to OpenQASM 3 exporter (#10408)
• Improve parameter-binding performance of large instructions (#10284)
• Add Expr support in DAGCircuit.substitute_node (#10382)
• Add Expr support to the control-flow builders (#10400)
• fix 1q matrix bug in Quantum Shannon Decomposer (#10126)
• Add mid-circuit measurement before conditional operation in random_circuit (#10401)
• Fix inner qubit mapping in UnitarySynthesis pass. (#10405)
• Fix plot legend don't show up when dataset start with zero (#10176)
• Fix deepcopy for new-style Bit (#10411)
• Fix DiagonalGate QPY serialisation (#10376)
• Add support for QuantumCircuit.layout to qpy (#10148)
• Fix CheckMap with control-flow builder nested conditionals (#10395)
• Fix VQD's optimal_values (#10279)
• Fix qasm export for gates with same name (#10286)
• Fix deprecation warnings emitted by import qiskit.primitives (#10287)
• Fix BasicSwap FakeRun Typo (#10274)
• Improve casting and error message for ParameterExpression (#10244)
• FullAncillaAllocation for backends witout a coupling map (#10240)
• Fix the output macros.measure with backendV2 (#10135)
• Fix QuantumCircuit.draw() not outputting pdf in latex mode (#10212)
• Fix output of DensityMatrix.partial_transpose to match input dimensions (#10163)
• Assign values directly to fully bound parameters in quantum circuits (#10183)
• Fix unitary synthesis for parameterized basis gates in Target (#10090)
• Fix PassManagerConfig.from_backend with BackendV1 and no CouplingMap (#10172)
• Fix top-level switch statements in QuantumCircuit.compose (#10164)
• Fixing BlockCollapser with Clbits (#9823)
• Fix initial_layout in transpile with loose qubits (#10153)
• Remove undefined variable (#10117)
• Fix wrong relative phase of MCRZ (#9836)
• Fix tweedledum runtime detection in BooleanExpression.from_dimacs_file (#10132)
• define getstate and setstate for OneQubitGateErrorMap (#10092)
• Add the qubit_coordinates_map for ibm_seattle (#10089)
• Switch QuantumCircuit.from_qasm_str and from_qasm_file to new parser (#9955)
• Fix interaction graph vf2 scoring to include 1q component (#10084)
• Set max_trials for VF2Layout in preset pass managers. (#10054) (#10061)
• Set max_trials for VF2Layout in preset pass managers. (#10054)
• Remove recursion from ConstrainedReschedule pass (#10051) (#10057)
• Remove recursion from ConstrainedReschedule pass (#10051)
• Fix for unintended rounding in 'state_to_latex' latex output (#9300) (#10048)
• Fix for unintended rounding in 'state_to_latex' latex output (#9300)
• Fix delay padding to respect target's constraints (#10007) (#10038)
• FIx 0q operation handling in Statevector (#10031) (#10039)
• circuit: narrow the return type of QuantumCircuit.assign_parameters (#10037)
• FIx 0q operation handling in Statevector (#10031)
• Allow decomposing composite gates by name (#9170)
• Fix delay padding to respect target's constraints (#10007)
• Use backend_compat module's convert to target (#10016)

Qiskit Terra 0.25.0rc1

Changelog

Deprecated

• Add deprecation warning to algs module (#10406)
• qiskit_version deprecation (#10242)
• Remove method qasm from Instruction and all of its subclasses (#10399)
• Deprecate namespace packaging hooks (#10322)
• Deprecate pulse Call instruction (#10247)
• Deprecate get_vf2_call_limit in preset_passmanagers (#10065)
• Deprecate circuit-library Jupyter magic (#9940)

Added

• Allow circuits w/ control flow in O2 and O3 (#10372)
• Optimize ConsolidateBlocks pass (#10365)
• Add Expr support to OpenQASM 3 exporter (#10408)
• Support control flow in ConsolidateBlocks (#10355)
• Add display of internal circuits for ControlFlowOps to mpl circuit drawer (#10207)
• Add flatten option to the NLocal family (#10269)
• Improve parameter-binding performance of large instructions (#10284)
• Add block collection options split_layers and collect_from_back (#10254)
• Add in qpy the support for Discriminator and Kernel (#10327)
• Add Expr support to DAGCircuit.substitute_node_with_dag (#10381)
• Add Expr support in DAGCircuit.substitute_node (#10382)
• Add a new argument concurrent_measurements to target class (#10258)
• Add Expr support to DAGCircuit.replace_block_with_node (#10383)
• Add find_bit method to DAGCircuit to get mapping of bits to positional index (#10128)
• Add Expr support to QPY for conditions and targets (#10392)
• Add Expr support to the control-flow builders (#10400)
• Add Expr support to DAGCircuit.compose (#10377)
• Add Expr support to QuantumCircuit.compose (#10375)
• Add separable_circuits method to DAGCircuit class (#9471)
• Add support for semantic equality checking of Exprs in DAGCircuit (#10367)
• Refactor output of OpenQASM 3 exporter to use fewer aliases (#10249)
• DAGCircuit: Add get_causal_cone method (#10325)
• Add get_dt_from_backend func to the builder command (#10253)
• Add Expr supprt to DAGCircuit simple constructors (#10362)
• Linear function usability improvements (#10053)
• Add Expr support to ControlFlowOp representation (#10358)
• Add initial representation of classical expressions (#10332)
• Relax wire_order restrictions in circuit visualization (#9893)
• Adding depth-5n synthesis algorithm for -CZ-CX- circuits (#9932)
• Add schmidt_decomposition function to quantum_info (#10104)
• Adding the feature of calculating entanglement measures negativity (#10134)
• Add HAS_PYGMENTS lazy tester (#9944)
• Allow multiplication of SparsePauliOp and ParameterExpression (#10264)
• Pass manager refactoring: add passmanager module (#10124)
• Added classical_predecessors method (#9980)
• Allow to normalize inputs on StatePreparation and Initialize (#7189)
• Add more 1q and 2q Pauli rotation equivalences (#7407)
• Add standard 1q Pauli equivalences to standard library (#10300)
• add abs method to ParameterExpression (#9309)

Changed

• Enable Sabre for control flow circuits at O1 (#10371)
• Refactor output of OpenQASM 3 exporter to use fewer aliases (#10249)
• Remove cyclic-definition handling from Clifford.from_circuit (#10441)
• Use rustworkx version of token_swapper (#10001)
• Use stable Python C API for building Rust extension (#10120)
• Assign values directly to fully bound parameters in quantum circuits (#10183)
• Switch QuantumCircuit.from_qasm_str and from_qasm_file to new parser (#9955)
• Drop support for Python 3.7 (#10009)
• Set max_trials for VF2Layout in preset pass managers. (#10054)

Removed

• Remove list argument broadcasting and simplify transpile() (#10291)
• Remove deprecated InstructionSet circuit_cregs argument (#10302)
• Remove deprecations from mpl circuit drawer (#10020)

Fixed

• Fix UnassignedDurationError of update_from_instruction_schedule_map (#10447)
• Add Expr support to OpenQASM 3 exporter (#10408)
• Improve parameter-binding performance of large instructions (#10284)
• Add Expr support in DAGCircuit.substitute_node (#10382)
• Add Expr support to the control-flow builders (#10400)
• fix 1q matrix bug in Quantum Shannon Decomposer (#10126)
• Add mid-circuit measurement before conditional operation in random_circuit (#10401)
• Fix inner qubit mapping in UnitarySynthesis pass. (#10405)
• Fix plot legend don't show up when dataset start with zero (#10176)
• Fix deepcopy for new-style Bit (#10411)
• Fix DiagonalGate QPY serialisation (#10376)
• Add support for QuantumCircuit.layout to qpy (#10148)
• Fix CheckMap with control-flow builder nested conditionals (#10395)
• Fix VQD's optimal_values (#10279)
• Fix qasm export for gates with same name (#10286)
• Fix deprecation warnings emitted by import qiskit.primitives (#10287)
• Fix BasicSwap FakeRun Typo (#10274)
• Improve casting and error message for ParameterExpression (#10244)
• FullAncillaAllocation for backends witout a coupling map (#10240)
• Fix the output macros.measure with backendV2 (#10135)
• Fix QuantumCircuit.draw() not outputting pdf in latex mode (#10212)
• Fix output of DensityMatrix.partial_transpose to match input dimensions (#10163)
• Assign values directly to fully bound parameters in quantum circuits (#10183)
• Fix unitary synthesis for parameterized basis gates in Target (#10090)
• Fix PassManagerConfig.from_backend with BackendV1 and no CouplingMap (#10172)
• Fix top-level switch statements in QuantumCircuit.compose (#10164)
• Fixing BlockCollapser with Clbits (#9823)
• Fix initial_layout in transpile with loose qubits (#10153)
• Remove undefined variable (#10117)
• Fix wrong relative phase of MCRZ (#9836)
• Fix tweedledum runtime detection in BooleanExpression.from_dimacs_file (#10132)
• define getstate and setstate for OneQubitGateErrorMap (#10092)
• Add the qubit_coordinates_map for ibm_seattle (#10089)
• Switch QuantumCircuit.from_qasm_str and from_qasm_file to new parser (#9955)
• Fix interaction graph vf2 scoring to include 1q component (#10084)
• Set max_trials for VF2Layout in preset pass managers. (#10054) (#10061)
• Set max_trials for VF2Layout in preset pass managers. (#10054)
• Remove recursion from ConstrainedReschedule pass (#10051) (#10057)
• Remove recursion from ConstrainedReschedule pass (#10051)
• Fix for unintended rounding in 'state_to_latex' latex output (#9300) (#10048)
• Fix for unintended rounding in 'state_to_latex' latex output (#9300)
• Fix delay padding to respect target's constraints (#10007) (#10038)
• FIx 0q operation handling in Statevector (#10031) (#10039)
• circuit: narrow the return type of QuantumCircuit.assign_parameters (#10037)
• FIx 0q operation handling in Statevector (#10031)
• Allow decomposing composite gates by name (#9170)
• Fix delay padding to respect target's constraints (#10007)
• Use backend_compat module's convert to target (#10016)

Qiskit Terra 0.24.2

Release notes: https://qiskit.org/documentation/release_notes.html#terra-0-24-2

Changelog

Fixed

• fix 1q matrix bug in Quantum Shannon Decomposer (#10126) (#10446)
• Fix inner qubit mapping in UnitarySynthesis pass. (#10405) (#10431)
• Fix deepcopy for new-style Bit (#10411) (#10413)
• Fix DiagonalGate QPY serialisation (#10376) (#10412)
• Dispatch a builder with backendV1 and backendV2 (#10150) (#10265)
• Add support for QuantumCircuit.layout to qpy (#10148) (#10410)
• Fix CheckMap with control-flow builder nested conditionals (#10395) (#10397)
• Fix VQD's optimal_values (#10279) (#10312)
• Fix qasm export for gates with same name (#10286) (#10297)
• Improve casting and error message for ParameterExpression (#10244) (#10268)
• Fix deprecation warnings emitted by import qiskit.primitives (#10287) (#10290)
• Fix BasicSwap FakeRun Typo (#10274) (#10278)
• Fix the output macros.measure with backendV2 (#10135) (#10241)
• Fix QuantumCircuit.draw() not outputting pdf in latex mode (#10212) (#10217)
• Fix output of DensityMatrix.partial_transpose to match input dimensions (#10163) (#10215)

Qiskit Terra 0.24.1

Changelog

Changed

• Assign values directly to fully bound parameters in quantum circuits (#10183) (#10192)

Fixed

• Assign values directly to fully bound parameters in quantum circuits (#10183) (#10192)
• Fix unitary synthesis for parameterized basis gates in Target (#10090) (#10190)
• Fix PassManagerConfig.from_backend with BackendV1 and no CouplingMap (#10172) (#10181)
• Fix top-level switch statements in QuantumCircuit.compose (#10164) (#10180)
• Fixing BlockCollapser with Clbits (#9823) (#10173)
• Remove undefined variable (#10117) (#10152)
• Fix tweedledum runtime detection in BooleanExpression.from_dimacs_file (#10132) (#10137)
• Improve performance of ConstrainedReschedule pass (#10077) (#10093)
• Add the qubit_coordinates_map for ibm_seattle (#10089) (#10094)
• define getstate and setstate for OneQubitGateErrorMap (#10092) (#10095)
• Fix interaction graph vf2 scoring to include 1q component (#10084) (#10086)

Qiskit Terra 0.24.0

Release notes: https://qiskit.org/documentation/release_notes.html#terra-0-24-0

Changelog

Deprecated

• Deprecate QuantumInstance and Opflow (#9176)
• Deprecate PauliTable and StabilizerTable (#9547)
• Deprecate the BIPMapping transpiler pass in favor of external plugin (#9924)

Added

• Operator apply permutation (#9403)
• Add support to switch in transpile (#9928)
• plugin convenience function for getting the entry point object (#9275)
• Improve error messages on failed control-flow transpilation (#9049)
• add function to swap connected nodes in DAGCircuit (#9160)
• Adding global_phase gate in qiskit-terra (#9251)
• Add experimental OpenQASM 3 support for switch (#9916)
• Add partial transpose function in quantum_info (#9566)
• Add full path transpile() support for disjoint backends (#9840)
• providers/options: implement Mapping (#9704)
• Allow list of optimizers+initial points in VQD (#9151)
• AdaptVQE threshold improvements (#9921)
• Add max_trials parameter to VF2PostLayout. (#9963)
• new unroll for-loops transpilation pass (#9670)
• Add support for disjoint coupling maps to SabreLayout (#9802)
• Add constructor to build target from legacy transpiler model (#9255)
• Add Rust-based OpenQASM 2 converter (#9784)
• Add Clifford.from_matrix (#9475)
• Add support for pulse reference to QPY (#9890)
• Ensure we run VF2PostLayout when needed in optimization level 1 (#9941)
• Make all Layout and Routing passes target aware (#9263)
• Fix AmplitudeEstimation is silently ignoring is_good_state in the estimation problem (#9906)
• Add flag to filter faulty qubits and gates to BackendV2Converter (#9911)
• Add equivlences of ECR, SX and SXdg gates to the equivalence library (#9913)
• Adding HLS plugins for linear functions and cliffords (#9399)
• Add representation of "switch" (#9833)
• Synthesis of a stabilizer state for LNN connectivity (#9734)
• Add commutator functions to quantum_info (#9546)
• Add option to skip deepcopy on circuit_to_dag (#9848)
• Add MinimumPoint transpiler pass (#9612)
• Add public layout attribute to QuantumCircuit (#9486)
• Update pulse gate transpiler pass to use target. (#9587)
• Rearrange the gradient result based on the order of the input parameters (#9503)
• Add @deprecate_func and @deprecate_arg decorators (#9676)
• Add support to CouplingMap for disjoint qubits (#9710)
• Add option to skip deepcopy on dag_to_circuit (#9825)
• Improve Parameter handling in SparsePauliOp (#9796)
• new parameters in plot_bloch_multivector: figsize, font_size, and title_font_size (#7264)
• Alternative construction mechanism for HLS config (#9413)
• Add add_deprecation_to_docstring for docsite deprecation support (#9685)
• Oxidize the internals of Optimize1qGatesDecomposition (#9578)
• Synthesis of CZ and Clifford circuits for linear nearest neighbor connectivity (#9450)
• Added pulses to the SymbolicPulse library (#9625)
• Remove Sabre's manual insertion-order iteration and unnecessary sorts (#9560)
• Support for time-dependent Hamiltonians and observable evaluation in TrotterQRTE (#9565)
• Add flipping of swap to GateDirection pass (#9561)
• Add an equiv method to the StabilizerState class (#9543)
• two-qubit unitary synthesis adapted to errors and over-complete gatesets (#9175)
• Local fidelity (#9504)
• ensure equivalences work to RZX (#9507)
• Adds support to PassManager drawer to display stages (#9128)
• Add target support to basis, optimization, scheduling, and util passes (#9343)

Changed

• fixed issue 9453 by removing "_v2" from name in BackendV2 class (#9465)
• Update pulse gate transpiler pass to use target. (#9587)
• Implementing CouplingMap.eq (#9766)
• Remove Sabre's manual insertion-order iteration and unnecessary sorts (#9560)
• two-qubit unitary synthesis adapted to errors and over-complete gatesets (#9175)
• PhaseOracle and BooleanExpression allow setting the expression variable order (#6658)
• Bump MSRV to 1.61 and all rust dependencies to latest releases (#9393)

Removed

• Remove argument max_credits from execute and assemble (#9322)
• Remove faulty qubits and gates sections from transpile() (#9900)
• Remove deprecated methods and args in Primitives (#9480)
• Remove factorizers and linear solvers from algorithms (#9832)
• Remove TextDrawing arguments layout, global_phase, qregs, and cregs (#9323)
• Remove DagDepNode.condition (deprecated in #6110) (#9406)

Fixed

• Set max_trials for VF2Layout in preset pass managers. (#10054) (#10061)
• Remove recursion from ConstrainedReschedule pass (#10051) (#10057)
• Fix for unintended rounding in 'state_to_latex' latex output (#9300) (#10048)
• Fix delay padding to respect target's constraints (#10007) (#10038)
• FIx 0q operation handling in Statevector (#10031) (#10039)
• Bug fix macros.measure with backendv2 (#9987)
• Fix circuit drawer for instructions with circuit parameters (#9942)
• Refactor OpenQASM 2 exporter (#9953)
• Prepare qiskit/transpiler/graysynth.py for deprecation in next release (#9795)
• Fix handling of numpy integers in marginal_distribution() (#9976)
• Correctly error on incorrect clbits in QuantumCircuit.append (#9386)
• Bug fix in template optimization, and minor cleanup (#9541)
• Ensure we run VF2PostLayout when needed in optimization level 1 (#9941)
• Fix AmplitudeEstimation is silently ignoring is_good_state in the estimation problem (#9906)
• Fixed IQAE bug mentioned in issue 9280 (#9887)
• Fix QuantumCircuitData handling of Operation (#9881)
• Fixed handling of a list of coupling_maps passed to transpile() (#9886)
• Fix UnrollCustomDefinitions handling of empty definitions (#9899)
• Fix a bug in QuantumCircuit.draw related to vertical_compression (#9855)
• Fix string formatting (#9540)
• Fix mypy errors (circuit) (#8267)
• Fix non-complex dtypes in OneQubitEulerDecomposer methods (#9828)
• transpile: narrow the return type depending on the circuits argument (#9799)
• fix qasm with reset (#9819)
• Clip probabilities in QuantumState (#9762)
• Remove implicit broadcasting from Pauli/label construction of PauliList (#9779)
• Fix basis_gates and coupling_map backend override in transpile() (#9789)
• Fix explicitly calibrated gates in GateDirection (#9786)
• Fix Parameter.is_real() (#9664)
• Qiskit gates not qelib1.inc are now defined when dumped (#9777)
• Fix zero-qubit Pauli label strings (#9726)
• Fix bitstring padding in the BackendSampler (#9744)
• Add inverse method to ECRGate (#9733)
• Fix handling of BackendV1 simulators in PassManagerConfig.from_backend (#9719)
• Fix qpy import of circuit with StatePreparation (#9665)
• Fix wrong argument supplied to _identity_op() (#9201)
• Stop raising AttributeError when accessing missing calibration (#9681)
• Fix escaping of identifiers in OQ3 output (#9660)
• Fix typing error in random_circuit conditionals (#9651)
• Fix bug in backend primitives with bound_pass_manager (#9629)
• Fix inverse of SdgGate in Solovay Kitaev (#9635)
• Add the gates ECR, iSwap, CY, SX, SXdg, DCX to the Clifford class (#9623)
• Fix handling of simulator backends in BackendV2Converter (#9630)
• Add TranspileErrors to routing passes for coupling_map=None (#7141)
• Fix VQD with SPSA optimizer (#9538)
• Update Target to use CalibrationEntry to create inst map (#9597)
• Retain all deprecated Bit properties in QPY roundtrip (#9525)
• Fix sparse matrix conversion for SciPy<Real/Imaginary>Evolver (#9598)
• Fix NumPy(Minimum)Eigensolver for sparse matrices (#9575)
• Make BarrierBeforeFinalMeasurements deterministic (#9568)
• Fix C3SXGate roundtrip in OpenQASM 2 (#9183)
• Remove deprecated arguments (#9542)
• Fix typo in Target (#9473)
• Bug fix on QNSPSA (#9483)
• Bug fix property and methods of BackendV2Converter (#9502)
• Fix bad deprecation of Register.name_format (#9494)
• Manage edge case of pickling instmap. (#9487)
• Fix performance of ReverseEstimatorGradient for partial gradients (#9491)
• Fix add_calibration bug (#9223) (#9451)
• Fix add_calibration bug (#9223)
• Fix PauliOp.adjoint() (#9434) (#9443)
• Fix PauliOp.adjoint() (#9434)
• Fix qpy for MCX gates (#9391) (#9412)
• Fix qpy for MCX gates (#9391)
• Fix TensoredOp.to_matrix with global coefficients (#9404) (#9408)
• Fix the AmplitudeEstimator algorithms for primitive usage (#9394) (#9407)
• Fix TensoredOp.to_matrix with global coefficients (#9404)
• Fix the AmplitudeEstimator algorithms for primitive usage (#9394)

Qiskit Terra 0.24.0rc1

Changelog

Deprecated

• Deprecate QuantumInstance and Opflow (#9176)
• Deprecate PauliTable and StabilizerTable (#9547)
• Deprecate the BIPMapping transpiler pass in favor of external plugin (#9924)

Added

• Operator apply permutation (#9403)
• Add support to switch in transpile (#9928)
• plugin convenience function for getting the entry point object (#9275)
• Improve error messages on failed control-flow transpilation (#9049)
• add function to swap connected nodes in DAGCircuit (#9160)
• Adding global_phase gate in qiskit-terra (#9251)
• Add experimental OpenQASM 3 support for switch (#9916)
• Add partial transpose function in quantum_info (#9566)
• Add full path transpile() support for disjoint backends (#9840)
• providers/options: implement Mapping (#9704)
• Allow list of optimizers+initial points in VQD (#9151)
• AdaptVQE threshold improvements (#9921)
• Add max_trials parameter to VF2PostLayout. (#9963)
• new unroll for-loops transpilation pass (#9670)
• Add support for disjoint coupling maps to SabreLayout (#9802)
• Add constructor to build target from legacy transpiler model (#9255)
• Add Rust-based OpenQASM 2 converter (#9784)
• Add Clifford.from_matrix (#9475)
• Add support for pulse reference to QPY (#9890)
• Ensure we run VF2PostLayout when needed in optimization level 1 (#9941)
• Make all Layout and Routing passes target aware (#9263)
• Fix AmplitudeEstimation is silently ignoring is_good_state in the estimation problem (#9906)
• Add flag to filter faulty qubits and gates to BackendV2Converter (#9911)
• Add equivlences of ECR, SX and SXdg gates to the equivalence library (#9913)
• Adding HLS plugins for linear functions and cliffords (#9399)
• Add representation of "switch" (#9833)
• Synthesis of a stabilizer state for LNN connectivity (#9734)
• Add commutator functions to quantum_info (#9546)
• Add option to skip deepcopy on circuit_to_dag (#9848)
• Add MinimumPoint transpiler pass (#9612)
• Add public layout attribute to QuantumCircuit (#9486)
• Update pulse gate transpiler pass to use target. (#9587)
• Rearrange the gradient result based on the order of the input parameters (#9503)
• Add @deprecate_func and @deprecate_arg decorators (#9676)
• Add support to CouplingMap for disjoint qubits (#9710)
• Add option to skip deepcopy on dag_to_circuit (#9825)
• Improve Parameter handling in SparsePauliOp (#9796)
• new parameters in plot_bloch_multivector: figsize, font_size, and title_font_size (#7264)
• Alternative construction mechanism for HLS config (#9413)
• Add add_deprecation_to_docstring for docsite deprecation support (#9685)
• Oxidize the internals of Optimize1qGatesDecomposition (#9578)
• Synthesis of CZ and Clifford circuits for linear nearest neighbor connectivity (#9450)
• Added pulses to the SymbolicPulse library (#9625)
• Remove Sabre's manual insertion-order iteration and unnecessary sorts (#9560)
• Support for time-dependent Hamiltonians and observable evaluation in TrotterQRTE (#9565)
• Add flipping of swap to GateDirection pass (#9561)
• Add an equiv method to the StabilizerState class (#9543)
• two-qubit unitary synthesis adapted to errors and over-complete gatesets (#9175)
• Local fidelity (#9504)
• ensure equivalences work to RZX (#9507)
• Adds support to PassManager drawer to display stages (#9128)
• Add target support to basis, optimization, scheduling, and util passes (#9343)

Changed

• fixed issue 9453 by removing "_v2" from name in BackendV2 class (#9465)
• Update pulse gate transpiler pass to use target. (#9587)
• Implementing CouplingMap.eq (#9766)
• Remove Sabre's manual insertion-order iteration and unnecessary sorts (#9560)
• two-qubit unitary synthesis adapted to errors and over-complete gatesets (#9175)
• PhaseOracle and BooleanExpression allow setting the expression variable order (#6658)
• Bump MSRV to 1.61 and all rust dependencies to latest releases (#9393)

Removed

• Remove argument max_credits from execute and assemble (#9322)
• Remove faulty qubits and gates sections from transpile() (#9900)
• Remove deprecated methods and args in Primitives (#9480)
• Remove factorizers and linear solvers from algorithms (#9832)
• Remove TextDrawing arguments layout, global_phase, qregs, and cregs (#9323)
• Remove DagDepNode.condition (deprecated in #6110) (#9406)

Fixed

• Bug fix macros.measure with backendv2 (#9987)
• Fix circuit drawer for instructions with circuit parameters (#9942)
• Refactor OpenQASM 2 exporter (#9953)
• Prepare qiskit/transpiler/graysynth.py for deprecation in next release (#9795)
• Fix handling of numpy integers in marginal_distribution() (#9976)
• Correctly error on incorrect clbits in QuantumCircuit.append (#9386)
• Bug fix in template optimization, and minor cleanup (#9541)
• Ensure we run VF2PostLayout when needed in optimization level 1 (#9941)
• Fix AmplitudeEstimation is silently ignoring is_good_state in the estimation problem (#9906)
• Fixed IQAE bug mentioned in issue 9280 (#9887)
• Fix QuantumCircuitData handling of Operation (#9881)
• Fixed handling of a list of coupling_maps passed to transpile() (#9886)
• Fix UnrollCustomDefinitions handling of empty definitions (#9899)
• Fix a bug in QuantumCircuit.draw related to vertical_compression (#9855)
• Fix string formatting (#9540)
• Fix mypy errors (circuit) (#8267)
• Fix non-complex dtypes in OneQubitEulerDecomposer methods (#9828)
• transpile: narrow the return type depending on the circuits argument (#9799)
• fix qasm with reset (#9819)
• Clip probabilities in QuantumState (#9762)
• Remove implicit broadcasting from Pauli/label construction of PauliList (#9779)
• Fix basis_gates and coupling_map backend override in transpile() (#9789)
• Fix explicitly calibrated gates in GateDirection (#9786)
• Fix Parameter.is_real() (#9664)
• Qiskit gates not qelib1.inc are now defined when dumped (#9777)
• Fix zero-qubit Pauli label strings (#9726)
• Fix bitstring padding in the BackendSampler (#9744)
• Add inverse method to ECRGate (#9733)
• Fix handling of BackendV1 simulators in PassManagerConfig.from_backend (#9719)
• Fix qpy import of circuit with StatePreparation (#9665)
• Fix wrong argument supplied to _identity_op() (#9201)
• Stop raising AttributeError when accessing missing calibration (#9681)
• Fix escaping of identifiers in OQ3 output (#9660)
• Fix typing error in random_circuit conditionals (#9651)
• Fix bug in backend primitives with bound_pass_manager (#9629)
• Fix inverse of SdgGate in Solovay Kitaev (#9635)
• Add the gates ECR, iSwap, CY, SX, SXdg, DCX to the Clifford class (#9623)
• Fix handling of simulator backends in BackendV2Converter (#9630)
• Add TranspileErrors to routing passes for coupling_map=None (#7141)
• Fix VQD with SPSA optimizer (#9538)
• Update Target to use CalibrationEntry to create inst map (#9597)
• Retain all deprecated Bit properties in QPY roundtrip (#9525)
• Fix sparse matrix conversion for SciPy<Real/Imaginary>Evolver (#9598)
• Fix NumPy(Minimum)Eigensolver for sparse matrices (#9575)
• Make BarrierBeforeFinalMeasurements deterministic (#9568)
• Fix C3SXGate roundtrip in OpenQASM 2 (#9183)
• Remove deprecated arguments (#9542)
• Fix typo in Target (#9473)
• Bug fix on QNSPSA (#9483)
• Bug fix property and methods of BackendV2Converter (#9502)
• Fix bad deprecation of Register.name_format (#9494)
• Manage edge case of pickling instmap. (#9487)
• Fix performance of ReverseEstimatorGradient for partial gradients (#9491)
• Fix add_calibration bug (#9223) (#9451)
• Fix add_calibration bug (#9223)
• Fix PauliOp.adjoint() (#9434) (#9443)
• Fix PauliOp.adjoint() (#9434)
• Fix qpy for MCX gates (#9391) (#9412)
• Fix qpy for MCX gates (#9391)
• Fix TensoredOp.to_matrix with global coefficients (#9404) (#9408)
• Fix the AmplitudeEstimator algorithms for primitive usage (#9394) (#9407)
• Fix TensoredOp.to_matrix with global coefficients (#9404)
• Fix the AmplitudeEstimator algorithms for primitive usage (#9394)

Qiskit Terra 0.23.3

Changelog

Fixed

• Fix non-complex dtypes in OneQubitEulerDecomposer methods (#9828) (#9829)
• fix qasm with reset (#9819) (#9826)
• Clip probabilities in QuantumState (#9762) (#9812)
• Improve error messages in Target-based GateDirection pass (#9787) (#9791)
• Fix basis_gates and coupling_map backend override in transpile() (#9789) (#9792)
• Fix explicitly calibrated gates in GateDirection (#9786) (#9788)
• Qiskit gates not qelib1.inc are now defined when dumped (backport #9777) (#9778)
• Fix bitstring padding in the BackendSampler (#9744) (#9745)
• transpiler/1q_decomposition: fix circuit score for zero gate errors (#9701)
• Add inverse method to ECRGate (#9733) (#9738)
• Fix handling of BackendV1 simulators in PassManagerConfig.from_backend (#9719) (#9725)
• Fix qpy import of circuit with StatePreparation (#9665) (#9711)
• Fix wrong argument supplied to _identity_op() (#9201) (#9703)
• Stop raising AttributeError when accessing missing calibration (#9681) (#9683)
• Fix escaping of identifiers in OQ3 output (#9660) (#9673)
• Fix typing error in random_circuit conditionals (#9651) (#9656)
• Fix bug in backend primitives with bound_pass_manager (#9629) (#9652)

Qiskit Terra 0.23.2

Changelog

Fixed

• Fix inverse of SdgGate in Solovay Kitaev (#9635) (#9641)
• Add the gates ECR, iSwap, CY, SX, SXdg, DCX to the Clifford class (#9623) (#9640)
• Fix handling of simulator backends in BackendV2Converter (#9630) (#9632)
• Fix VQD with SPSA optimizer (#9538) (#9613)
• Update Target to use CalibrationEntry to create inst map (#9597) (#9610)
• Retain all deprecated Bit properties in QPY roundtrip (#9525) (#9603)
• Fix sparse matrix conversion for SciPy<Real/Imaginary>Evolver (#9598) (#9600)
• Fix NumPy(Minimum)Eigensolver for sparse matrices (#9575) (#9577)
• Remove deprecated arguments (#9542) (#9544)
• Bug fix on QNSPSA (#9483) (#9520)
• Bug fix property and methods of BackendV2Converter (#9502) (#9506)

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)