Changelog

Added

• [0.46] Finalise support for Numpy 2.0 (#12189)

Fixed

• Fix v2 pulse drawer (#12608) (#12613)
• Fix bugs with VF2Layout pass and Qiskit Aer 0.13 (#11585) (#12536)
• Fix unnecessary serialisation of PassManager in serial contexts (backport #12410) (#12500)
• Fix Instruction.repeat with conditionals (#11940) (#12499)
• Fix evolved operator ansatz (#11682) (#12479)
• Avoid lossing precision when scaling frequencies (#12392) (#12480)
• Handle huge integers in OpenQASM 2 expression evaluator (#12140) (#12401)
• Default init plugin was not properly raising when called with an invalid optimization level (#12170) (#12175)
• Fix mpl circuit drawer with fold=-1 hanging with ControlFlow ops (backport #12016) (#12036)

Changelog

Fixed

• Fixing monitor tools (#11414)
• Remove old graph structure during EquivalenceLibrary.set_entry (#11959) (#11963)
• Fix handling of control flow instructions in convert_to_target() (#11922)
• Fix PropertySet re-use in BasePassManager.run (#11787) (#11863)
• Add missing gate properties and configuration to FakeOpenPulse2Q (from #11609) (#11788)
• Construct subclasses of InstructionDurations from backend (#11501) (#11727)

Release notes: https://docs.quantum.ibm.com/api/qiskit/release-notes/0.46

Changelog

Deprecated

• Remove validation methods from primitive base classes (backport #11052) (#11532)
• Deprecate visualization code (#11636)
• Deprecate pulse parameter scoping (#11691)
• Legacy code deprecation in pass manager (#11449)
• Deprecate NoiseAdaptiveLayout and CrosstalkAdaptiveSchedule (#11402)
• Deprecate qiskit.tools (#11514)
• Deprecate provider-specific fake backends,FakeProvider class and related tools in 0.46 (#11381)
• Add warning when qiskit package not installed (#11230)
• Deprecate BasicAer and introduce BasicProvider (#11583)
• Deprecate qiskit/quantum_info/synthesis and move to qiskit/synthesis (backport #11460) (#11635)
• Deprecate qiskit/transpiler/synthesis and move to qiskit/synthesis (backport #11426) (#11624)
• Deprecate PauliList estimator observables (#11520)
• Deprecate ConfigurableFakeBackend (#11567)
• Deprecate execute() (#11044)
• deprecate qiskit.test (#11001)
• Deprecate qiskit.Aer and qiskit.providers.aer (#11439)
• Deprecate implicit Estimator conversion to SparsePauliOp (#11535)
• Deprecate legacy qcstyle (#11545)
• Deprecate BasePrimitiveResult (#11054)
• Deprecate extensions on stable/0.46 (#11498)
• Deprecate legacy qasm2 parser for 0.46 (#11347)
• Deprecate Qobj input to UnitarySimulatorPy.run (#11394)
• deprecate legacy pulse builder command (#11249)
• Deprecate leftover algorithm/opflow utils (#11323)
• Deprecate ParametricPulse (#11279)
• Deprecate the discrete pulse library (#11110) (#11265)

Added

• Add fake generic and modify tests (backport #10266) (#11670)
• Deprecate BasicAer and introduce BasicProvider (#11583)
• Deprecate qiskit/quantum_info/synthesis and move to qiskit/synthesis (backport #11460) (#11635)
• Add support for Python 3.12 (#11262) (#11311)

Changed

• Poison import if Qiskit 1.0+ is detected (#11617)
• Add warning when qiskit package not installed (#11230)

Fixed

• Fix qpy support for Cliffords (#11495) (#11582)
• Fix a bug of missing pulse library entry in PulseQobj parsing (backport #11397) (#11573)
• Fix broadcasting of QuantumCircuit.delay (#11447) (#11523)
• Fix global-phase of copied BlueprintCircuits (#11456) (#11485)
• Fix text overwriting end of box for empty default case in mpl drawer (#11366) (#11482)
• Fix a bug is StabilizerState repr (#11368) (#11416)
• Fixed bug in OptimizeSwapBeforeMeasure (#11413) (#11415)
• Don't substitute ideal gates in target with Optimize1qGatesDecomposition (#11351) (#11359)
• Update Instruction.condition_bits for runtime classical expressions (#11325) (#11328)
• Fix backend_util.py and test cases to support Aer 0.13 (#11172) (#11283)
• Fix issue with ScheduleBlock qpy serialization and use_symengine (#11261) (#11275)
• Allow correct retrieval of circuit with initialize instruction from qpy file (#11206) (#11274)
• Fix QuantumCircuit.barrier argument conversion (#11272) (#11273)
• Fix pickling of conditioned custom gates from OpenQASM 2 import (#11175) (#11258)
• Fix Channel.__hash__ in multiprocessing contexts (#11251) (#11255)
• Allow barriers in overlap circuit inputs (#11179) (#11216)
• Fix circuit drawer returning qubit[register] names for input (#11096) (#11199)

Changelog

Changed

• Poison import if Qiskit 1.0+ is detected (#11617)

Changelog

Fixed

• Fix qpy support for Cliffords (#11495) (#11582)
• Fix a bug of missing pulse library entry in PulseQobj parsing (backport #11397) (#11573)
• Fix broadcasting of QuantumCircuit.delay (#11447) (#11523)
• Fix global-phase of copied BlueprintCircuits (#11456) (#11485)
• Fix text overwriting end of box for empty default case in mpl drawer (#11366) (#11482)
• Fix a bug is StabilizerState repr (#11368) (#11416)
• Fixed bug in OptimizeSwapBeforeMeasure (#11413) (#11415)
• Don't substitute ideal gates in target with Optimize1qGatesDecomposition (#11351) (#11359)

Changelog

Added

• Add support for Python 3.12 (#11262) (#11311)

Fixed

• Update Instruction.condition_bits for runtime classical expressions (#11325) (#11328)
• Fix backend_util.py and test cases to support Aer 0.13 (#11172) (#11283)
• Fix issue with ScheduleBlock qpy serialization and use_symengine (#11261) (#11275)
• Allow correct retrieval of circuit with initialize instruction from qpy file (#11206) (#11274)
• Fix QuantumCircuit.barrier argument conversion (#11272) (#11273)
• Fix pickling of conditioned custom gates from OpenQASM 2 import (#11175) (#11258)
• Fix Channel.__hash__ in multiprocessing contexts (#11251) (#11255)
• Allow barriers in overlap circuit inputs (#11179) (#11216)
• Fix circuit drawer returning qubit[register] names for input (#11096) (#11199)

Release notes: https://qiskit.org/documentation/release_notes.html#relnotes-0-45-0

Changelog

Deprecated

• Pass manager refactoring: cleanup internals (#10127)
• Deprecate passing None to DAGCircuit appenders (#10752)
• Deprecate Unroller pass (#10607)
• Fix deprecation warning of unscheduled circuits in timeline drawer (#10851)
• Deprecation of algorithm utils (algorithm_globals and validation) (#10905)
• Deprecate bind_parameters in favor of assign_parameters (#10792)
• Move OpenQASM 2 exporter to qiskit.qasm2 (#10533)
• Deprecate qiskit.extensions (#10725)
• Deprecate duplicate circuit gate method (#10797)

Added

• Merging UnrollCustomDefinitions into HighLevelSynthesis as a single pass (#10965)
• Add UnitaryOverlap to the circuit library (#10734)
• schedule() considers instruction map (#10988)
• Pass manager refactoring: cleanup internals (#10127)
• Add display of expressions to circuit drawers (#10869)
• Singleton parameterless controlled gates (#10898)
• Starting layout analysis pass for sabre (#10829)
• Rewrite singleton handling including SingletonInstruction (#11014)
• Annotated operations (#9846)
• Add apply_layout method to SparsePauliOp (#10947)
• Fix hash of Parameter and ParameterExpression (#10875)
• Fix deprecated behaviour in timeline drawer (#10846)
• Improve the ergonomics of the TranspileLayout class (#10835)
• Add check_input option to UnitaryGate (#10660)
• Fix MergeAdjacentBarriers to scale with number of barriers (#10900)
• Add use_symengine option to qpy.dump (#10820)
• Update plot_gate_map() family to leverage graphviz for visualization (#10208)
• #10360 New sign feature in parameterexpression.py (#10571)
• adding an option to CouplingMap.reduce to allow disconnected coupling maps (#10863)
• Use singletons for standard library unparameterized, non-controlled gates (#10314)
• Optimise QuantumCircuit.assign_parameters for single-parameter binding (#10548)
• Add fast path to Parameter.assign (#10549)
• Add option to SabreLayout to specify starting layouts (#10721)
• Allow empty list default initialization for SparsePauliOp (#10765)
• Add fast-path construction to DAGCircuit methods (#10753)
• Use BasisTranslator for unroll 3q or more (#10776)
• Move OpenQASM 2 exporter to qiskit.qasm2 (#10533)
• Add display of internal circuits for ControlFlowOps to text drawer (#10414)
• Optimization stage as a plugin. (#10581)
• constructing cliffords from linear functions and permutation gates (#10423)
• Adding coupling-map and target to HighLevelSynthesis (#10477)
• Add draw method to Operator class (#10271)
• Add tests of Expr support through SabreSwap (#10511)
• Add full Expr support to StochasticSwap (#10506)
• limiting matrix-based commutativity check (#10495)
• Revert "Revert "Pass manager refactoring: add passmanager module (#10124)" (#10454)" (#10474)
• Add IGate rules to standard equivalence library (#7146)
• Add NormalizeRXAngle and RXCalibrationBuilder passes (#10634)
• Preparations to update the default MPL drawer style to "iqx" (#10950)

Changed

• Pass manager refactoring: cleanup internals (#10127)
• Deprecate Unroller pass (#10607)
• Singleton parameterless controlled gates (#10898)
• Pin Numpy < 2 in requirements (#10893)
• Update plot_gate_map() family to leverage graphviz for visualization (#10208)
• Use singletons for standard library unparameterized, non-controlled gates (#10314)
• Adding h, p and u to basic aer (#10673)
• qiskit-terra == qiskit, in version libraries (#10425)
• Keep resets at beginning of circuits (#10591)
• Migrate init stage to plugins (#10689)
• Migrate layout stage to plugins (#10622)
• Cleaning up U3 in the unitary extension (#10597)
• Update minimum Rust version to 1.64 (#10541)
• Revert "Revert "Pass manager refactoring: add passmanager module (#10124)" (#10454)" (#10474)

Removed

• Removed code deprecated in 0.22 [transpiler and providers] (#10872)
• Removed code deprecated in qiskit-terra 0.21, released on June 2022 (#10754)
• removed deprecated PauliTable, StabilizerTable and tests (#10815)
• Remove code deprecated in 0.15 (#10779)
• Remove deprecated x and z arguments to Pauli (#10717)
• Removed deprecated functions in qiskit.scheduler.utils (#10879)
• remove qiskit.utils.deprecation.deprecate_function, deprecated in terra 0.22 (#10881)
• Remove quantum_info deprecated code in 0.22 (#10861)
• Remove deprecated code in 0.19 (#10791)
• Removed code deprecated in 0.20 (#10767)
• Remove deprecated BIPMapping pass (#10526)
• Removal of deprecated property num_ancilla_qubits (#10793)

Fixed

• Fix input normalisation of transpile(initial_layout=...) (#11031)
• Add base-gate callback to CUGate.params return (#11032)
• Fix build filter coupling map with mix ideal/physical targets (#11009)
• schedule() considers instruction map (#10988)
• Fix commutation analysis to group gates into blocks of pairwise commuting gates (#10618)
• NoiseAdaptiveLayout to consider inconsistencies in backend (#10859)
• Use only discrete-basis translations in GateDirection (#10786)
• Fix qpy for controlled UnitaryGate (#10809)
• Add global-phase support to control-flow builders (#10800)
• BackendEstimator support BackendV2 without coupling_map (#10956)
• Fix hash of Parameter and ParameterExpression (#10875)
• Fix IQX color schemes (#10941)
• Support dynamic circuit in BackendEstimator (#9700)
• Avoid useless deepcopy of target with custom pulse gates in transpile (#10973)
• Fix bug in qs_decomposition (#10850)
• Fix issues with ControlFlowOp displays (#10842)
• Fix Clifford.from_operator to fail with non-Clifford diagonal operators (#10904)
• Support passing empty lists to Pauli delete method (#10849)
• fix random statevector distribution (#10866)
• Allow dynamical decoupling pass to work on circuits with pulse gates (#10834)
• Fix GateDirection pass (#10825)
• Fix qpy for multiple controlled parametrized gates (#10758)
• Track Sabre decay heuristic on physical qubits (#10756)
• Handle final comments with no terminating newline in OpenQASM 2 (#10773)
• Support new-style Bit in Pauli convertor from QuantumCircuit (#10757)
• Add validation to Sampler if there are no measurements (#10642)
• Fix performance of Sabre rust<->Python boundary (#10652)
• Fix classical-synthesis label ordering with registerless=False (#9536)
• Reject bad values in SparsePauliOp.paulis setter (#10437)
• Fixing the tools for plotting Pauli vec (#10619)
• Fix open circles and visual circuit tests to .9999 (#10580)
• Fix multiple nested custom controlled gates in QPY (#10537)
• Implemented a type check in copy method of QuantumCircuit class (#10521)
• Force decimal points in OpenQASM 2 floats (#10532)
• limiting matrix-based commutativity check (#10495)
• Fix final_layout when VF2PostLayout finds a better layout (#10466)
• Fix empty-barrier handling in OpenQASM 2 (#10469)
• Fix Pulse channel index validation (#10476)
• raise an exception with a custom gate with clbits or no qubits (#10438)

Release notes: https://qiskit.org/documentation/release_notes.html#qiskit-0-44-3

Changelog

Fixed

• Fix input normalisation of transpile(initial_layout=...) (backport #11031) (#11058)
• Fix calling backend.name() for backendV2 (#11065) (#11076) (#11092)
• Fix build filter coupling map with mix ideal/physical targets (#11009) (#11049)
• Emit a descriptive error when the QPY version is too new (#11094)
• BackendEstimator support BackendV2 without coupling_map (#10956) (#11006)
• Support dynamic circuit in BackendEstimator (#9700) (#10984)
• Avoid useless deepcopy of target with custom pulse gates in transpile (#10973) (#10978)
• Fix bug in qs_decomposition (#10850) (#10957)

Changelog

Deprecated

• Pass manager refactoring: cleanup internals (#10127)
• Deprecate passing None to DAGCircuit appenders (#10752)
• Deprecate Unroller pass (#10607)
• Fix deprecation warning of unscheduled circuits in timeline drawer (#10851)
• Deprecation of algorithm utils (algorithm_globals and validation) (#10905)
• Deprecate bind_parameters in favor of assign_parameters (#10792)
• Move OpenQASM 2 exporter to qiskit.qasm2 (#10533)
• Deprecate qiskit.extensions (#10725)
• Deprecate duplicate circuit gate method (#10797)

Added

• Merging UnrollCustomDefinitions into HighLevelSynthesis as a single pass (#10965)
• Add UnitaryOverlap to the circuit library (#10734)
• schedule() considers instruction map (#10988)
• Pass manager refactoring: cleanup internals (#10127)
• Add display of expressions to circuit drawers (#10869)
• Singleton parameterless controlled gates (#10898)
• Starting layout analysis pass for sabre (#10829)
• Rewrite singleton handling including SingletonInstruction (#11014)
• Annotated operations (#9846)
• Add apply_layout method to SparsePauliOp (#10947)
• Fix hash of Parameter and ParameterExpression (#10875)
• Fix deprecated behaviour in timeline drawer (#10846)
• Improve the ergonomics of the TranspileLayout class (#10835)
• Add check_input option to UnitaryGate (#10660)
• Fix MergeAdjacentBarriers to scale with number of barriers (#10900)
• Add use_symengine option to qpy.dump (#10820)
• Update plot_gate_map() family to leverage graphviz for visualization (#10208)
• #10360 New sign feature in parameterexpression.py (#10571)
• adding an option to CouplingMap.reduce to allow disconnected coupling maps (#10863)
• Use singletons for standard library unparameterized, non-controlled gates (#10314)
• Optimise QuantumCircuit.assign_parameters for single-parameter binding (#10548)
• Add fast path to Parameter.assign (#10549)
• Add option to SabreLayout to specify starting layouts (#10721)
• Allow empty list default initialization for SparsePauliOp (#10765)
• Add fast-path construction to DAGCircuit methods (#10753)
• Use BasisTranslator for unroll 3q or more (#10776)
• Move OpenQASM 2 exporter to qiskit.qasm2 (#10533)
• Add display of internal circuits for ControlFlowOps to text drawer (#10414)
• Optimization stage as a plugin. (#10581)
• constructing cliffords from linear functions and permutation gates (#10423)
• Adding coupling-map and target to HighLevelSynthesis (#10477)
• Add draw method to Operator class (#10271)
• Add tests of Expr support through SabreSwap (#10511)
• Add full Expr support to StochasticSwap (#10506)
• limiting matrix-based commutativity check (#10495)
• Revert "Revert "Pass manager refactoring: add passmanager module (#10124)" (#10454)" (#10474)
• Add IGate rules to standard equivalence library (#7146)
• Add NormalizeRXAngle and RXCalibrationBuilder passes (#10634)
• Preparations to update the default MPL drawer style to "iqx" (#10950)

Changed

• Pass manager refactoring: cleanup internals (#10127)
• Deprecate Unroller pass (#10607)
• Singleton parameterless controlled gates (#10898)
• Pin Numpy < 2 in requirements (#10893)
• Update plot_gate_map() family to leverage graphviz for visualization (#10208)
• Use singletons for standard library unparameterized, non-controlled gates (#10314)
• Adding h, p and u to basic aer (#10673)
• qiskit-terra == qiskit, in version libraries (#10425)
• Keep resets at beginning of circuits (#10591)
• Migrate init stage to plugins (#10689)
• Migrate layout stage to plugins (#10622)
• Cleaning up U3 in the unitary extension (#10597)
• Update minimum Rust version to 1.64 (#10541)
• Revert "Revert "Pass manager refactoring: add passmanager module (#10124)" (#10454)" (#10474)

Removed

• Removed code deprecated in 0.22 [transpiler and providers] (#10872)
• Removed code deprecated in qiskit-terra 0.21, released on June 2022 (#10754)
• removed deprecated PauliTable, StabilizerTable and tests (#10815)
• Remove code deprecated in 0.15 (#10779)
• Remove deprecated x and z arguments to Pauli (#10717)
• Removed deprecated functions in qiskit.scheduler.utils (#10879)
• remove qiskit.utils.deprecation.deprecate_function, deprecated in terra 0.22 (#10881)
• Remove quantum_info deprecated code in 0.22 (#10861)
• Remove deprecated code in 0.19 (#10791)
• Removed code deprecated in 0.20 (#10767)
• Remove deprecated BIPMapping pass (#10526)
• Removal of deprecated property num_ancilla_qubits (#10793)

Fixed

• Fix input normalisation of transpile(initial_layout=...) (#11031)
• Add base-gate callback to CUGate.params return (#11032)
• Fix build filter coupling map with mix ideal/physical targets (#11009)
• schedule() considers instruction map (#10988)
• Fix commutation analysis to group gates into blocks of pairwise commuting gates (#10618)
• NoiseAdaptiveLayout to consider inconsistencies in backend (#10859)
• Use only discrete-basis translations in GateDirection (#10786)
• Fix qpy for controlled UnitaryGate (#10809)
• Add global-phase support to control-flow builders (#10800)
• BackendEstimator support BackendV2 without coupling_map (#10956)
• Fix hash of Parameter and ParameterExpression (#10875)
• Fix IQX color schemes (#10941)
• Support dynamic circuit in BackendEstimator (#9700)
• Avoid useless deepcopy of target with custom pulse gates in transpile (#10973)
• Fix bug in qs_decomposition (#10850)
• Fix issues with ControlFlowOp displays (#10842)
• Fix Clifford.from_operator to fail with non-Clifford diagonal operators (#10904)
• Support passing empty lists to Pauli delete method (#10849)
• fix random statevector distribution (#10866)
• Allow dynamical decoupling pass to work on circuits with pulse gates (#10834)
• Fix GateDirection pass (#10825)
• Fix qpy for multiple controlled parametrized gates (#10758)
• Track Sabre decay heuristic on physical qubits (#10756)
• Handle final comments with no terminating newline in OpenQASM 2 (#10773)
• Support new-style Bit in Pauli convertor from QuantumCircuit (#10757)
• Add validation to Sampler if there are no measurements (#10642)
• Fix performance of Sabre rust<->Python boundary (#10652)
• Fix classical-synthesis label ordering with registerless=False (#9536)
• Reject bad values in SparsePauliOp.paulis setter (#10437)
• Fixing the tools for plotting Pauli vec (#10619)
• Fix open circles and visual circuit tests to .9999 (#10580)
• Fix multiple nested custom controlled gates in QPY (#10537)
• Implemented a type check in copy method of QuantumCircuit class (#10521)
• Force decimal points in OpenQASM 2 floats (#10532)
• limiting matrix-based commutativity check (#10495)
• Fix final_layout when VF2PostLayout finds a better layout (#10466)
• Fix empty-barrier handling in OpenQASM 2 (#10469)
• Fix Pulse channel index validation (#10476)
• raise an exception with a custom gate with clbits or no qubits (#10438)

Changelog

This is a post release of 0.25.2 the library source code is identical
between this release and 0.25.2, it fixes some packaging issues that
occurred during the 0.25.2 release.