Changelog

Added

• Conjugate reduction in optimize annotated pass (#11811)
• Add star to linear pre-routing pass (#11387)
• Add enhancement to BitArray (#12158)
• Add ElidePermutations transpiler pass (#9523)
• Support standalone Var throughout transpiler (#12322)
• Add indexing and bitshift expressions (#12310)
• Support standalone Vars in OQ3 exporter (#12308)
• Add minimal support for standalone Var to visualisers (#12307)
• Support Var in circuit-substitution methods (#12215)
• Add representation of expr.Var to DAGCircuit (#12204)
• Promote arm64 macOS to tier 1 (#12102)
• Support standalone expr.Var in QPY (#11651)
• Extend the basis gates of BasicSimulator (#12186)
• Add reverse permutation for LNN connectivity (#12181)
• Add Rust-based SparsePauliOp.to_matrix and Miri tests (#11388)
• Finalise support for Numpy 2.0 (#11999)
• Rename show_idle and show_barrier to idle_wires and plot_barriers (#11878)
• Add fast-path construction to NLocal (#12099)
• Add mapping-like features to data_bin (#12129)
• Expose plugin options (#12107)
• Update gate dictionary in two_local.py (#12009)
• Add .apply_layout()method to Pauli class (#12066)
• Improve performance and randomness of QuantumVolume (#12097)
• Add copy keyword argument to QuantumCircuit.append (#12098)
• Added the ctrl_state param to the mcp() function & MCPhaseGate() class (#12094)
• Oxidize two qubit basis decomposer (#12010)
• Added the ctrl_state parameter to mcx() function (#12050)
• Compose multiple final_layout attributes in routing (#11399)
• Fix custom constraints in transpile with BackendV2 (#12042)
• Add BackendSamplerV2 (#11928)
• Add BackendEstimatorV2 (#11931)
• Oxidize TwoQubitWeylDecomposition (#11946)
• Adapt commutation checker to abstract circuits (#11948)
• Expose PauliList.noncommutation_graph in public API (#11795)
• Add ElidePermutations pass to optimization level 3 (#12111)
• replace CXCancellation with InverseCancellation (#11937)
• Add support for returning a DAGCircuit to TwoQubitBasisDecomposer (#12109)
• Assignment of parameters in pulse Schedule/ScheduleBlock doable through parameter name (#12088)
• Add SamplerPubResult (#12143)
• HLSConfig option to run multiple plugins and to choose the best decomposition (#12108)
• Update transpile() to convert BackendV1 inputs to BackendV2 with BackendV2Converter (#11996)
• Add commutative cancellation to preset passmanagers level 2 and 3 (#11929)
• Add RemoveFinalReset pass (#11266)
• ParameterVector support for pulse parameter assignment (#12045)
• Adding annotated argument to power methods (#12101)

Deprecated

• Deprecating Provider ABC, as abstraction is not very useful (#12145)
• pending deprecations from 0.21 (#11902)
• Deprecate Python 3.8 support (#12103)

Changed

• Increase heuristic effort for optimization level 2 (#12149)
• Improve performance and randomness of QuantumVolume (#12097)

Fixed

• Rework handling of instruction durations in preset pass managers (#12183)
• Improve performance of BackendSamplerV2 and EstimatorV2 (#12291)
• Treat Reset like Measure in ConstrainedReschedule (#11756)
• Support ECR gates in Pauli.evolve(QuantumCircuit) (#12095)
• Default init plugin was not properly raising when called with an invalid optimization level (#12170)
• Add copy keyword argument to QuantumCircuit.append (#12098)
• Update the code for decomposing MCX and MCPhase gates, so that the number of CX gates won't grow exponentially (#11993)
• Fix custom constraints in transpile with BackendV2 (#12042)
• fix typo in soft_compare (#12054)
• Fix incorrect signage in qDRIFT synthesis (#11321)
• Fix mpl circuit drawer with fold=-1 hanging with ControlFlow ops (#12016)
• Fix build() default alignment (#12029)
• Fix pulse parameter value formatter bug (#11972)
• Fix evolved operator ansatz (#11682)
• Remove old graph structure during EquivalenceLibrary.set_entry (#11959)
• Fix Instruction.repeat with conditionals (#11940)
• Fix performance issue in parsing bit indices in QPY (#11944)
• Bug Fix for missing qubit property (#11880)
• Fix improper handling of BindingsArray in SamplerPub.coerce() (#11913)
• Fix transpilation of control flow to no hardware (#11907)
• Fixing bug in qcstyle that modified custom style dict (#11874)
• Fix handling of control flow instructions in convert_to_target() (#11877)
• Fix improper handling of BindingsArray in EstimatorPub.coerce (#11871)
• Fix Observables.coerce() for 0-d inputs (#11868)
• Ensure that Parameters compare equal when they have the same hash (#11652)
• Fix an unchecked condition in InverseCancellation (#11834)
• Fix PropertySet re-use in BasePassManager.run (#11787)
• Fix custom pulse instruction conversion to Qobj. (#11829)
• Fix scheduling units (#11782)
• bug loading MPL style from the configuration (#11750)
• Fix qpy.dump()'s use_symengine when passed a truthy object (#11730)
• Update Commutation Checker to Support UTF-8 Encoded Gate Names (#12061)
• Fixing Operator.from_circuit for circuits with final layouts and a non-trivial initial layout (#12057)
• Avoid lossing precision when scaling frequencies (#12392)
• Fix unnecessary serialisation of PassManager in serial contexts (#12410)
• Handle huge integers in OpenQASM 2 expression evaluator (#12140)
• Fix a corner case of SparsePauliOp.apply_layout (#12375)
• Fix QuantumCircuit.compose with Index exprs (#12396)
• Fix {Pauli,SparsePauliOp}.apply_layout to raise an error with negative or duplicate indices (#12385)
• fix edge coloring bug in plot_coupling_map (#12369)
• Fix missing layout in Commuting2qGateRouter (#12137)