3.0.0

Changelog

• dimod 0.9.5 -> 0.9.7

  • Structured.to_networkx_graph mixin method
  • .min, .max, and .sum methods on BQM views
  • nonblocking_sample_method decorators for asynchronous samplers
  • anti_crossing_loops, anti_crossing_clique, and doped problem generators
  • BQM.to_file and BQM.from_file methods for cyBQMs
  • VartypeView.relabel_variables no longer sometimes returnes models with the wrong vartype
  • BQM.relabel_variables_as_integers now works correctly when inplace=False
  • New DISCRETE vartype for sample sets
  • DiscreteQuadraticModel class
  • New parallel constructor for dense c++ BQMs

• dwave-cloud-client 0.7.7 -> 0.8.1

  • Client instance defaults via defaults constructor argument (#425)
  • Client class defaults in Client.DEFAULTS
  • Parsing of boolean options in configuration files. on/off, true/false, 1/0 all work as expected (#113)
  • @deprecated utility decorator
  • aliasdict utility dict subclass enabling lazy access to alias keys
  • Removed legacy config file format (.dwrc) support (#138)
  • Removed some of the deprecated Solver.is_* properties
  • Removed support for deprecated formats: bqm-ref and bq-zlib.
  • Removed support for more than first three positional arguments in Client constructor (endpoint, token and solver). Positional arguments in the constructor will be deprecated eventually.
  • Client.solvers scheduled for removal in 0.9.0
  • Deprecated Future.occurrences in favor of Future.num_occurrences
  • Deprecated samples and occurrences keys in Future/Future.result()
  • A discrete quadratic model solver, dwave.cloud.solver.DQMSolver
  • New name for binary quadratic solver, dwave.cloud.solver.BQMSolver
  • Client.get_solver has been known to mutate the default_solver (#428). Now we make sure it doesn't.
  • Setting kwargs explicitly to None in Client.from_config could overwrite config values (#430). Now that too is fixed.

• dwave-greedy 0.1.1

  • greedy.SteepestDescentSolver, a steepest descent greedy solver for binary quadratic models
  • greedy.SteepestDescentComposite, a greedy descent post-processing composite

• dwave-hybrid 0.5.1 -> 0.6.0

  • Option to retry if embedding fails in QPUSubproblemAutoEmbeddingSampler (#114)
  • ComponentDecomposer for iterating over problem graph components (#209)
  • greedy-based SteepestDescentProblemSampler/SteepestDescentSubproblemSampler
  • SplatComposer was producing numpy.float64 samplesets (#235). Now it inherits dtype from input.

• dwave-inspector 0.2.3 -> 0.2.4

  • Stop using hierarchical requirements include
  • Support changes in latest dwave-cloud-client and dwave-system

• dwave-neal 0.5.4 -> 0.5.6

  • Accept samples-like for initial_states (use dimod.Initialized ABC)
  • Updated Windows tests to work with latest AppVeyor setup
  • Stopped using hierarchical requirements include
  • Skip deploying linux/py39 package, as not all dependencies are available for py39.

• dwave-networkx 0.8.7 -> 0.8.8

  • Rearranged requirements files to follow Ocean style

• dwave-qbsolv 0.3.0 -> 0.3.1

  • Test with dimod 0.9.x by default
  • Stop using hierarchical requirements include
  • Simplified and updated Windows tests to work with latest AppVeyor setup
  • Skip deploying linux/py39 package, as not all dependencies are available for py39.

• dwave-system 0.9.9->1.1.1

  • DWaveSampler.to_networkx_graph method
  • A faster implementation of embed_bqm
  • A EmbeddedStructure class.
  • Improved chain strength in DWaveCliqueSampler
  • DWaveCliqueSampler now correctly supports legacy software solvers
  • New chain strength tuning methods, uniform_torque_compensation and scaled
  • Embedding composites now use uniform_torque_compensation to set the default chain strength
  • MockDWaveSampler.sample now accepts **kwarg for greater flexibility when testing
  • All samplers now strongly prefer either a QPU or a hybrid solver. Please see Sampler behavior changes in 1.0.0 for details.
  • Removed deprecated solver_features kwarg in DWaveSampler
  • Removed deprecated order_by kwarg in DWave(Clique)Sampler
  • Added LeapHybridDQMSampler

• minorminer 0.2.0 -> 0.2.3

  • Fix for the false K_4 embeddings

Package versions

dimod==0.9.7
dwave-cloud-client==0.8.1
dwave-greedy==0.1.1
dwave-hybrid==0.6.0
dwave-inspector==0.2.4
dwave-neal==0.5.6
dwave-networkx==0.8.8
dwave-qbsolv==0.3.1
dwave-system==1.1.1
dwave-tabu==0.3.0
dwavebinarycsp==0.1.2
minorminer==0.2.3
penaltymodel-cache==0.4.1
penaltymodel-lp==0.1.3
penaltymodel==0.16.3
pyqubo>=0.4.0

Extras, all

penaltymodel-mip==0.2.3
penaltymodel-maxgap==0.5.3