Changelog

Deprecated

• Deprecate Remaining Legacy Circuit Library Classes and Update References (#14511)

Added

• added num_physical_qubits to qasm3_load (#14470)
• Add qk_obs_apply_layout to apply layouts to QkObs (#14106)
• Improving default HLS synthesis methods for Clifford+T compilation (#14902)
• Add to_pauli and to_pauli_list conversion methods to qubit-sparse pauli classes (#14846)
• Adding PhasedQubitSparsePauli and PhasedQubitSparsePauliList (#14759)
• Allow to specify implicit defcal symbols in OpenQASM 3 export (#14800)
• Add QubitSparsePauliList.to_dense_array (#14791)
• Create option for measures without arrows in mpl and text circuit drawers (#14601)
• C API: Burn BasisTranslator (#14874)
• Add QuantumCircuit.ensure_physical (#14779)
• C API: Burn ConsolidateBlocks (#14751)
• Add angle bound support to target constraints (#14406)
• Add custom DAGCircuit.__deepcopy__ implementation (#14965)
• Add CommutativeCancellation standalone transpiler pass to C API (#14831)
• Add fast-path parameter binding (#14782)
• Transpile C API (#14760)
• C API: Burn Optimize1qGatesDecomposition. (#14710)
• Add UnitarySynthesis transpiler pass to C API (#14740)
• Burn inverse cancellation (#14840)
• Port ApplyLayout to Rust (#14904)
• Add Split2qUnitaries to C API (#14720)
• Add interoperation between TranspileLayout and PropertySet (#14826)
• Add SabreLayout to the C API (#14711)
• Add GateDirection and CheckGateDirection to C API (#14768)
• Litinski transform (based on Rustiq) (#14753)
• Add TranspileLayout to the C API (#14780)
• Add C release level + versioning docs (#14576)
• Add Van rentergem modular adder (better CX counts) (#14816)
• Add a new 'ps' variant to Duration for picoseconds. (#14588)
• Add RemoveDiagonalGatesBeforeMeasure to the C API (#14731)
• Add structural equality check for DAGCircuit (#14762)
• Add drop_qubits method to PauliLindbladMap (#14868)
• Add Python free path to inverse_cancellation (#14803)
• Add support for parameterized gates to the Target C API (#14832)
• Add the MCX synthesis algorithm by Huang and Palsberg (#14666)
• Set base-circuit properties on entry to PassManager.run (#14825)
• Add RemoveIdentityEquiv to the C API (#14717)
• improved QSD synthesis algorithm (#14721)
• Add ElidePermutations standalone function to the C API (#14708)
• Improve MCMT synthesis for XGate base gate (#14754)
• Add VF2Layout standalone function to the C API (#14668)
• Added circuit start table to the QPY file header (#14571)
• Add minimum QPY version to user config (#14505)
• Add DAGCircuit.make_physical (#14587)

Changed

• Updated SparsePauliOp.assign_parameters to cast coefficients to complex once all parameters are bound (#14611)
• Bump Faer to latest version and increase MSRV to 1.85 (#14873)
• Make cbindgen map usize to size_t (#14944)
• Set base-circuit properties on entry to PassManager.run (#14825)

Fixed

• Preserve registers in output TranspileLayout (#15024) (#15025)
• Fix variable remapping of Delay expressions in QuantumCircuit.compose (#15020) (#15023)
• Fix VF2PostLayout with uncoupled qubits in strict_direction=True (#14998) (#15001)
• Fix calls to VF2PostLayout after optimization loop at O3 (#14869)
• Un-provide standard_operation for PyGate (#14978)
• Fix global phase handling in CommutativeCancellation (#14956)
• Fix: Memory leakage in QkCountOps creation. (#14930)
• Fix PauliEvolutionGate.to_matrix to return exact matrix (#14934)
• Fix TranspileLayout.initial_index_layout with unordered virtuals (#14939)
• Fix VF2 layout allocation with idle qubits (#14938)
• Compute dense-layout Sabre trial only over virtual qubits (#14604)
• Fix composition of final_layout (#14919)
• Fix non-determinism in CommutativeCancellation (#14763)
• Fix memory leaks in qk_circuit_get_instruction. (#14884)
• Fix QASM3 export of Delay with 'ps' units. (#14895)
• Fix/improve control method for the gates in the MCX family (#14728)
• Read timing constraints from target when no backend is provided (#14405)
• Multi circui new (#14654)
• ObservablesArray fixes: stop over-identification as non-Hermitian, raise for empty observables (#14714)
• Clarify error message in qpy.dump (#14795)
• Fix a bug in Target::py_instruction_supported and remove the py token parameter (#14765)
• Fix IQFT drawing (#14767)
• Fix simplify to sum duplicates before applying tolerance (#14194) (#14425)
• Fix non-determinism VF2Layout with only 1q gates (#14730)
• Fixed a bug where nonequal boxes were considered equal (#14716)
• Fixing problems in CommutativeInverseCancellation transpiler pass (#14655)
• Restore correct max_trials behaviour for VF2Layout pass (#14667)
• fixing MCXSynthesis1DirtyKG24 and MCXSynthesis2DirtyKG24 plugins (#14670)
• Use Arc instead of Box for internal expression nodes in SymbolExpr (#14660)
• Add missing stacklevel to deprecation warning for 3.9 (#14651)
• Fix sympify() for expressions with vector element .subs() (#14641) (#14642)
• Fixes for dimacs-related boolean expression code (#14636)
• Fix sympify() for expressions with vector element .subs() (#14641)
• Extending rustiq synthesis plugin to work SparseObservables (#14582) (#14628)
• Extending rustiq synthesis plugin to work SparseObservables (#14582)
• Fix classical bit mapping in HLS pass (#14597) (#14625)
• Fix ElidePermutations pass in the presence of PermutationGates (#14603) (#14623)
• Fix classical bit mapping in HLS pass (#14597)
• Fix ElidePermutations pass in the presence of PermutationGates (#14603)
• Fix ApplyLayout with empty layout (#14606) (#14613)
• Raising an error when an invalid PauliEvolutionGate is constructed (#14585)
• Fix ApplyLayout with empty layout (#14606)
• Fix random number generator seed argument for quantum_volume (#14586) (#14592)
• Fix random number generator seed argument for quantum_volume (#14586)
• allows string values in assign_parameters with strict=False (#14365) (#14554)
• allows string values in assign_parameters with strict=False (#14365)