v0.3.3

Major changes

• add QuditCode.to_swel and .maybe_to_swel by @perlinm in #542
• Add QuditCode.get_destabilizer_ops by @perlinm in #543
• Add CSS.get_destabilizer_ops by @perlinm in #544
• Add PauliChannelSequence: sequence of independent Pauli-string errors by @perlinm in #545
• allow NoiseRule and PauliChannel to act on tsim circuits by @perlinm in #547
• Add confidence_ratio option to LookupDecoder by @perlinm in #552
• add GolayCode and QuantumGolayCode by @perlinm in #555

Minor changes

• Add drop_correlations option to PauliChannel.to_circuit by @perlinm in #541
• Add CSSCode.from_strings by @perlinm in #546
• Update to ruff=0.16.0 by @perlinm in #548
• Add DetectorErrorModelArrays.without_detectors by @perlinm in #549
• Use lazy module imports by @perlinm in #550
• Cheaper tests by @perlinm in #551
• Typing fixes by @perlinm in #553
• Consolidate SymPy polynomial handling into a single helper by @perlinm in #556
• Fix QTCode.eq and some typos by @perlinm in #557
• Documentation review by @perlinm in #558
• Clean up trivial code by @perlinm in #559

Full Changelog: v0.3.2...v0.3.3

v0.3.2

Major changes

• User-specified idling errors and treat one/two-qubit SPP/SPP_DAG as one/two-qubit Cliffords by @perlinm in #519
• Support multi-qubit noise rules by @perlinm in #521
• Condition errors on noiseless qubits by @perlinm in #446
• Support target- and tag-specific noise rules by @perlinm in #525
• Add PauliChannel.to_circuit by @perlinm in #529
• Transversal logical S gate for SWEL codes by @perlinm in #532
• Add option for the LookupDecoder to predict observable flips directly by @perlinm in #533
• Add CSSCode.is_self_dual and CSSCode.is_swel by @perlinm in #535
• Allow a LookupDecoder to ignore post-selected syndrome bits by @perlinm in #538
• Add SWEL (self-dual with equivalent logicals) support for CSS codes over arbitrary finite fields by @perlinm in #536

Minor changes

• Use galois.GF2 by @perlinm in #515
• Add tsim support to NoiseModel by @perlinm in #516
• Accept a pathlib.Path for disk cache path by @perlinm in #517
• Add ErrorTargets by @perlinm in #520
• Hygiene: enforce line width limit for docstrings by @perlinm in #522
• Rename ErrorTargets to FlipPattern by @perlinm in #523
• Minor notebook update by @perlinm in #524
• Minor bugfixes and cleanup in recent noise_model.py additions by @perlinm in #526
• Make NoiseModels serializable, when possible by @perlinm in #527
• Add NoiseModel.__repr__ by @perlinm in #528
• Add a missing guard + raise error for invalid inputs to circuits.get_logical_tableau by @perlinm in #531
• Allow tsim.Circuit inputs/outputs to qldpc.circuits.with_remapped_qubits by @perlinm in #534
• Allow initializing QubitIDs from integer qubit numbers by @perlinm in #537
• Fix decoder when post-selecting in get_logical_error_and_discard_rate by @perlinm in #539

Full Changelog: v0.3.0...v0.3.2

v0.3.0

Major Changes

• Cyclic Hypergraph Product Codes by @michaelontiveros in #431
• 4D Geometric Codes by @michaelontiveros in #433
• Add an example notebook for decoding tqec circuits by @HaoTy in #445
• Compute logical error rates of logical state preparation circuits by @perlinm in #444
• Add option to intercept the DEM to decode in get_logical_error_and_discard_rate by @perlinm in #453
• Human-readable RingArrays and Howell normal form by @perlinm in #455
• Add ErrorRateFunc class by @perlinm in #461
• Support post-selection in code-capacity error rate calculations by @perlinm in #464
• Add Wedderburn-Artin decomposition of semisimple Abelian rings by @perlinm in #465
• Add Howell normal form for matrices over semisimple rings by @perlinm in #467
• Add line operators for lifted product codes by @perlinm in #470
• Finish Wedderburn-Artin decomposition of non-commutative rings by @perlinm in #478
• Add candidate Howell normal form for matrices over non-commutative rings by @perlinm in #481
• Add erasure support to decoders by @perlinm in #483
• Identify most likely observable flips in a LookupDecoder by @perlinm in #486
• Clean up and refactor abstract module by @perlinm in #494
• Add abstract.linalg by @perlinm in #495
• Fix: DetectorErrorModelArrays ignores stim's ^ decomposition separator by @HaoTy in #462
• Add synthetic post-selection to DetectorErrorModelArrays by @perlinm in #507
• Add post-selection on observables by @perlinm in #511

Minor Changes

• Add Ring.eval and Group.eval by @perlinm in #432
• Minor cleanup of CHGPCodes by @perlinm in #435
• Separately compute the X and Z distance of an HGPCode by @perlinm in #436
• Rename keyword argument: validate --> skip_validation by @perlinm in #437
• Minor revision of T4Code by @perlinm in #438
• Pass decoder_args through to RelayBP decoder construction by @perlinm in #439
• Allow setting only X-type or only Z-type logicals of a QuditCode by @perlinm in #441
• Sliding window decoder bug fix by @beitom in #442
• Factor out get_pauli_product_measurements to circuits.common by @perlinm in #443
• Allow initializing Records with dict[Hashable, int] by @perlinm in #447
• Add option to change target qubits in get_pauli_product_measurements by @perlinm in #448
• Add get_logical_error_and_discard_rate by @perlinm in #449
• Add example notebook for Knill QEC by @perlinm in #450
• Clean up post-selection options in circuit benchmarking methods by @perlinm in #451
• Minor typing improvements by @perlinm in #452
• Add a trivial decoder by @perlinm in #457
• Replace uint with uint64 for improved compatibility by @SpyroL7 in #456
• fix bug in DetectorErrorModelArrays.from_arrays by @perlinm in #459
• Allow HGPCode.get_canonical_logical_ops to accept/return abstract.RingArrays by @perlinm in #460
• Fix get_distance_bound() for large codes by @cduck in #458
• Reorganize abstract algebra module by @perlinm in #463
• Minor fixes to abstract/rings.py by @perlinm in #466
• Minor fix to RingArray.howell_normal_form by @perlinm in #468
• Fix and simplify WedderburnArtinComponentTransformer._get_embeddings by @perlinm in #469
• Some gap fixes by @perlinm in #471
• Save any constructed WedderburnArtinTransformer to its ring by @perlinm in #472
• Work towards supporting Wedderburn-Artin decomposition of non-commutative rings by @perlinm in #473
• Compute primitive idempotents of a ring by @perlinm in #474
• Recycle X and Z decoders if possible in CSSCode.get_logical_error_rate_func by @perlinm in #475
• Build standard basis for non-commutative Wedderburn-Artin components by @perlinm in #476
• fix bug introduced in #475 by @perlinm in #477
• Store raw importance-sampling data in ErrorRateFunc by @perlinm in #479
• Factor out dual basis calculation by @perlinm in #480
• Minor change to post-selection argument in code-capacity calculations by @perlinm in #482
• Cleanup: unit tests and typos by @perlinm in #484
• Some coverage fixes by @perlinm in #485
• Find logical stabilizers of state prep circuits more robustly by @perlinm in #487
• Fix bug in HNF for non-commutative rings by @perlinm in #488
• Add fixtures to some unit tests by @perlinm in #489
• Update readme by @perlinm in #490
• Add group lift to right-regular antirepresentation by @perlinm in #491
• Add WedderburnArtinTransformer.transpose by @perlinm in #492
• Add ErrorRateFunc.truncation_error_bound by @perlinm in #493
• Update stim and sinter dependencies by @perlinm in #496
• Typing cleanup in qldpc.decoders by @perlinm in #497
• Fix treatment of detectors in state prep circuit benchmarking methods by @perlinm in #499
• More robust code retrieval from the qecdb by @perlinm in #500
• Fix benchmarking circuit validation by @perlinm in #501
• Reorganize qldpc.circuits module by @perlinm in #502
• Allow passing fields to field arguments by @perlinm in #503
• Add the TrivialCode by @perlinm in #506
• Make get_state_stabilizers code-agnostic by @perlinm in #505
• Add DetectorErrorModelArrays.to_circuit by @perlinm in #508
• Encode into native stabilizer basis, if possible by @perlinm in #509
• Fix and simplify synthetic post-selection by @perlinm in #510
• Cheaper abstract algebra tests by @perlinm in #513
• Simplify permutation automorphism finding for non-self-dual CSS codes by @perlinm in #514
• version bump to v0.3.0 by @perlinm in #504

New Contributors

• @SpyroL7 made their first contribution in #456
• @cduck made their first contribution in #458
• @HaoTy made their first contribution in #445

Full Changelog: v0.2.9...v0.3.0

v0.2.9

Major changes

• Prevent Stim from merging scheduled gate layers by @abbrazi in #423
• Split logical error rate example notebook into multiple notebooks by @perlinm in #425
• Allow initializing a decoder from a DEM by @perlinm in #427
• [BREAKING CHANGE for Relay-BP] Clean up decoder retrieval and allow MWPM to ignore non-graphlike errors by @perlinm in #428
• Add AlphaSyndrome measurement strategy (arXiv:2601.12509) by @acasta-yhliu in #422

Minor changes

• update checks-superstaq version by @perlinm in #420
• Minor syndrome measurement test cleanup by @perlinm in #424

New Contributors

• @abbrazi made their first contribution in #423
• @acasta-yhliu made their first contribution in #422

Full Changelog: v0.2.8...v0.2.9

v0.2.8

What's Changed

• Clarify duality between puncturing and shortening by @perlinm in #413
• Update workflows by @perlinm in #414
• Update relay-bp to fix build issues by @perlinm in #415
• Workflow test fixes by @perlinm in #416
• Update to fixed relay-bp version by @perlinm in #418
• version bump to v0.2.8 by @perlinm in #419

Full Changelog: v0.2.7...v0.2.8

v0.2.7

Major changes

• Sliding Window Decoding Support by @jviszlai in #398
• Streamline the human API to GAP/MAGMA by @perlinm in #397

Minor changes

• Minor fixes after mypy updates by @perlinm in #404
• Use uv build system by @perlinm in #405
• Use uv for workflows by @perlinm in #406
• Clean up SinterDecoder API by @perlinm in #411
• version bump to v0.2.7 by @perlinm in #412

Full Changelog: v0.2.6...v0.2.7

v0.2.6

What's Changed

• Add qldpc.math.block_matrix to simplify building block matrices by @perlinm in #381
• Fix python 3.10 support by @perlinm in #383
• Gap fix by @perlinm in #384
• Simplify cache keys and add option to delete cache entries by @perlinm in #388
• Add option to compute automorphism groups with MAGMA by @perlinm in #387
• Retrieve codes from qecdb.org by @perlinm in #392
• [BREAKING CHANGE] Pass sequences to some methods that previously accepted many arguments by @perlinm in #393
• Add "human API" to GAP, if GAP cannot be called automatically by @perlinm in #391
• Make workflows use python 3.10 by @perlinm in #395
• version bump to v0.2.6 by @perlinm in #394

Full Changelog: v0.2.4...v0.2.6

v0.2.4

What's Changed

• Change conventions for the IcebergCode by @perlinm in #364
• Clean up behavior of QuditCode.conjugated and QuditCode.deformed by @perlinm in #366
• Add [15, 1, 3] TetrahedralCode by @perlinm in #365
• Add CSSCode.classical by @perlinm in #367
• Add more helper circuits by @perlinm in #368
• allow segments to address the same observables in CompiledCompositeSinterDecoder by @perlinm in #369
• Rename QuditCode.get_dual_subsystem_code to QuditCode.dual by @perlinm in #370
• Add CSSCode.set_logical_ops_x, which automatically finds suitable Z-type logicals by @perlinm in #371
• Allow passing a cutoff to QuditCode.get_distance_exact by @perlinm in #373
• make circuits.Record a proper Mapping by @perlinm in #374
• Allow passing an error_channel to a LookupDecoder by @perlinm in #375
• [REVERTED] Allow excluding detectors from segments of a CompositeSinterDecoder by @perlinm in #376
• Add capability to post-select detector error models by @perlinm in #377
• Rename CompositeSinterDecoder to SubgraphSinterDecoder by @perlinm in #378
• Add SequentialSinterDecoder by @perlinm in #379
• Build the DetectorRecord after post-selection by @perlinm in #380

Full Changelog: v0.2.2c...v0.2.4

v0.2.2c

What's Changed

• Don't split noise-immune circuit operations by @perlinm in #360
• Merge LookupDecoder and WeightedLookupDecoder by @perlinm in #361
• Bugfixes for computing distance with GAP by @perlinm in #362
• Add QuditCode.to_css by @perlinm in #363

Full Changelog: v0.2.2b...v0.2.2c

v0.2.2b

What's Changed

• Pass log-likelihood priors to MWPM SinterDecoder by @perlinm in #341
• Add CardinalEdgeColoring syndrome measurement strategy by @perlinm in #339
• (EdgeColoring, CardinalEdgeColoring) -> (EdgeColoringXZ, EdgeColoring) by @perlinm in #342
• Move sinter_decoder to decoders module by @perlinm in #343
• Refactor syndrome measurement methods by @perlinm in #344
• Clean up memory experiments and related code by @perlinm in #347
• Add option to make operations immune to noise by @perlinm in #349
• Simpler all-0 encoding circuits by @perlinm in #350
• Add custom syndrome measurement circuits for QCCodes (and BBCodes) by @perlinm in #351
• Add capability to relabel qubits in a Stim circuit (circuits.with_remapped_qubits) by @perlinm in #352
• add circuits/bookkeeping.py by @perlinm in #353
• Add DetectorErrorModelArrays.from_arrays and .simplify by @perlinm in #354
• Add QuantumHammingCode by @perlinm in #355
• Support parallel decoding with Relay-BP by @perlinm in #357
• Identify the error rates of all logical operators in QEC memory cycles by @perlinm in #346
• version bump to v0.2.2 by @perlinm in #358

Full Changelog: v0.2.1...v0.2.2b