Changelog

v1.4.0 (Sep. 19, 2025)

• Support Amplify Annealing Engine v1.0 on AmplifyAEClient.

• Support D-Wave Advantage2 System v1.6.

• Deprecate D-Wave Advantage2 Prototype v2.6.

• Rename AmplifyClient to BaseClient.

• Support D-Wave solver identification updates and update the dependent dwave-system package to v1.33.0.

• Update type hints for PolyArray and sum().

• Support DNP Annealing Software v1.0.4 on DASClient.

• Fix: Substitute method for high-order polynomials now correctly reduces the degree to 2.

• Fix: einsum() now correctly handles integer NumPy arrays.

• Fix: FujitsuDA4Client now correctly handles inequality constraints without constants.

v1.4.1 (Oct 16, 2025)

• Support Python 3.14, and Python 3.9 is no longer supported.

• Fix: Resolved error of transpose operation on an unassigned PolyArray class instance.

v1.3.0 (Nov. 01, 2024)

• Improve support for type annotations.

• Improve accuracy of upper and lower bounds estimates in constraint construction.

• Change advanced parameters of solve(), parallel_solve(), equal_to(), less_equal(), greater_equal() and clamp() functions to keyword-only arguments for usability.

• Support Hitachi CMOS annealing on HitachiClient.

• Support DNP Annealing Software v1.0.3 on DASClient.

• Support D-Wave Advantage2 Prototype 2.5.

• Support conversion from Variable to Poly.

• Support input/output of models with LP and QPLIB format files.

• Variable can be used as a mapping key for substitute(), substitute() and is_satisfied().

• Support conversion from real variables to binary variables.

• Add compress_qpu_problem_data attribute to DWaveSamplerClient, LeapHybridSamplerClient and LeapHybridCQMSamplerClient.

• Add support for Python 3.13, and Python 3.8 is no longer supported.

v1.3.1 (Nov. 18, 2024)

• Fix: Prevent segmentation fault when accessing variables through get_variables() or variables property on empty models.

• Fix: Correct total_elapsed_time in SolverTiming to reference the proper timing value.

• Fix: Update type hints for domain_wall() and array.

v1.2.0 (July 23, 2024)

• Support TOSHIBA SQBM+ v2.0.3 on ToshibaSQBM2Client.

• Support DNP Annealing Software v1.0.2 on DASClient.

v1.2.1 (Aug. 06, 2024)

• Change supported macOS to Monterey or later.

v1.1.0 (May 13, 2024)

• Support NEC Vector Annealing Service 2.0 on NECVA2Client.

• Improve the efficiency of the Substitute quadratization method and significantly reduce the number of auxiliary variables.

• Add support for Linux ARM64.

v1.1.1 (May 28, 2024)

• Fix type hints for Result class.

v1.0.0 (Jan. 27, 2024)

• Release version 1.0.

v1.0.2 (Feb. 20, 2024)

• Add documents in English.

• Fix redundant deprecation warnings.

• Add client.ocean namespace for legacy compatibility.

v1.0.3 (Mar. 01, 2024)

• Support D-Wave Advantage System 6.4.

• Support D-Wave Advantage 2 Prototype 2.2.

v1.0.4 (Mar. 15, 2024)

• Fix a problem where SQBM request data is not sent correctly on Windows.

v1.0.5 (Mar. 19, 2024)

• Support D-Wave Advantage 2 Prototype 2.3.