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)