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

3.0.0.dev0

Changelog

• 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 0.1.0 -> 0.1.1

  • 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->1.1.0

  • 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
  • Removed deprecated solver_features kwarg in DWaveSampler
  • Removed deprecated order_by kwarg in DWave(Clique)Sampler
  • Added LeapHybridDQMSampler

• 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

• 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==1.1.0
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

2.6.0

Changelog

• dwave-cloud-client 0.7.5 -> 0.7.7

  • New polling schedule control parameters (config & kwargs):
    poll_backoff_min and poll_backoff_max (#410)
  • Faster answer polling schedule: backoff time base reduced from 1s to 50ms
  • Problem offset parameter supported in Solver.sample_{ising,qubo},
    and implicitly (via BQM) in Solver.sample_bqm (#408)
  • Fixed: correct error handling during answer loading (#394)
  • Fixed: support BQM offset in Solver.sample_bqm (#408)
  • Fixed: support order by in solver features definition dict (#407)
  • Fixed: include package version in user-agent string (#420)

• dwave-inspector 0.2.2 -> 0.2.3

  • Infer and propagate SAPI solver topology if topology property missing (#91)
  • Reduce encoded solver data (#95)

• dwave-networkx 0.8.6 -> 0.8.7

  • Updated documentation for coordinate transformers
  • Fixed rotation in TSP algorithm

Package versions

dimod==0.9.5
dwave-cloud-client==0.7.7
dwave-hybrid==0.5.1
dwave-inspector==0.2.3
dwave-neal==0.5.4
dwave-networkx==0.8.7
dwave-qbsolv==0.3.0
dwave-system==0.9.9
dwave-tabu==0.3.0
dwavebinarycsp==0.1.2
minorminer==0.2.0
penaltymodel==0.16.3
penaltymodel-cache==0.4.1
penaltymodel-lp==0.1.3
pyqubo>=0.4.0

Extras, all

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

2.5.0

Changelog

• dimod 0.9.4 -> 0.9.5

  • BQM.normalize now returns the value the BQM was scaled by
  • SampleSet.relabel_variables no longer blocks for unresolved sample sets
  • FileView has a new parameter, ignore_variables that treats the BQM as integer-labelled
  • ScaleComposite no longer blocks
  • FileView.seek now works correctly with io.SEEK_END
  • Change: BinaryPolynomial support in ScaleComposite has been removed

• dwave-cloud-client 0.7.4 -> 0.7.5

  • User-Agent extended with platform-specific tags
  • CLI: dwave --platform
  • CLI: additive verbosity for install/setup commands
  • Fixed: order_by argument to Client.get_solver affected effective solver
    filters if used in isolation (#401)
  • Fixed: during problem multipart upload, individual part upload could fail on
    retry attempt if part data stream was exhausted in previous upload attempt

• dwave-hybrid 0.5.0 -> 0.5.1

  • All QPU samplers now use client-based QPU selection instead of solver feature-based,
    therefore allowing users to define the solver via Ocean configuration

• dwave-system 0.9.6 -> 0.9.9

  • Added DWaveCliqueSampler
  • Added order_by kwarg in DWaveSampler constructor
  • LeapHybridSampler uses BQM serialization version 2.0
  • Embedding composites no longer block
  • MockDWaveSampler now has the correct topology
  • Fix rounding in anneal schedule validation

• minorminer 0.1.9 -> 0.2.0

  • Added polytime clique embedder for chimera and pegasus graphs under minorminer.busclique
    (an implementation to compute biclique embeddings is also available but needs improvement)
  • Added layout and placement strategies under minorminer.layout
  • Improved restart behavior (controlled through tries parameter)

Package versions

dimod==0.9.5
dwave-cloud-client==0.7.5
dwave-hybrid==0.5.1
dwave-inspector==0.2.2
dwave-neal==0.5.4
dwave-networkx==0.8.6
dwave-qbsolv==0.3.0
dwave-system==0.9.9
dwave-tabu==0.3.0
dwavebinarycsp==0.1.2
minorminer==0.2.0
penaltymodel==0.16.3
penaltymodel-cache==0.4.1
penaltymodel-lp==0.1.3
pyqubo>=0.4.0

Extras, all

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

2.4.0

Changelog

• dimod 0.9.3 -> 0.9.4

  • assert_consistent_bqm to dimod.testing for testing different BQM implementations
  • Testing is now done with parameterized package - this does not affect installed packages
  • FileView version 2.0 with improved docs

• dwave-cloud-client 0.7.3 -> 0.7.4

  • Restore support for solvers without category property

Package versions

dimod==0.9.4
dwave-cloud-client==0.7.4
dwave-hybrid==0.5.0
dwave-inspector==0.2.2
dwave-neal==0.5.4
dwave-networkx==0.8.6
dwave-qbsolv==0.3.0
dwave-system==0.9.6
dwave-tabu==0.3.0
dwavebinarycsp==0.1.2
minorminer==0.1.9
penaltymodel==0.16.3
penaltymodel-cache==0.4.1
penaltymodel-lp==0.1.3
pyqubo>=0.4.0

Extras, all

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

2.3.0

Changelog

• dimod 0.9.2 -> 0.9.3

  • pack_samples kwarg for SampleSet.to_serializable() method that allows the user to not pack samples. This means bumping the sample set serialization version to 3.1.0
  • SampleSet.info is now correctly propagated through the ClipComposite
  • All .pyx and .pxd files are included in the MANIFEST which means that cimport dimod will now work correctly

• dwave-cloud-client 0.7.2 -> 0.7.3

  • Hybrid solvers support:
    • dwave.cloud.hybrid.Client is a new client type specialized
      for SAPI hybrid solvers
    • Solver.hybrid is a new derived property, also available for
      feature-based solver filtering
  • Client certificate SAPI authentication supported via client_cert and
    client_cert_key config/kwarg parameters
  • dwave install now supports --upgrade option to (re)install
    partially installed contrib packages, or upgrade stale requirements
  • qpu/sw/hybrid derived solver properties refactored to use the
    new SAPI solver property, category
  • Nested exception properly propagated by Future.exception()
  • dwave install now enforces the full requirement specifier for each
    contrib dependency
  • User home and environment variables are now expanded in
    config file path
  • Solver.is_* properties scheduled for removal in 0.8.0
  • Future.error deprecated in favor of Future.exception() and
    scheduled for removal in 0.9.0
  • Removed most of Python 2 constructs

• dwave-hybrid 0.4.3 -> 0.5.0

  • Added SubproblemCliqueEmbedder
  • Dropped Python 2.7 and 3.4 support
  • Loosened NumPy version requirements

• dwave-inspector 0.2.1 -> 0.2.2

  • Infer SAPI solver topology type if topology property missing

• dwave-system 0.9.5 -> 0.9.6

  • LeapHybridSampler now correctly chooses solvers that accept the bqm problem type
  • Biclique support for Pegasus

Package versions

dimod==0.9.3
dwave-cloud-client==0.7.3
dwave-hybrid==0.5.0
dwave-inspector==0.2.2
dwave-neal==0.5.4
dwave-networkx==0.8.6
dwave-qbsolv==0.3.0
dwave-system==0.9.6
dwave-tabu==0.3.0
dwavebinarycsp==0.1.2
minorminer==0.1.9
penaltymodel==0.16.3
penaltymodel-cache==0.4.1
penaltymodel-lp==0.1.3
pyqubo>=0.4.0

Extras, all

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

2.2.0

Changelog

• dimod 0.9.1 -> 0.9.2

  • BQM C++ headers are now in dimod/include/dimod/
  • Initialized ABC and accompanying parse_initial_states method for samplers that accept initial states
  • IdentitySampler that returns passed-in initial states
  • ising_to_qubo function now accepts an underspecified h arg
  • General performance and structural improvements to C++ bqms
  • cyBQMs are now pickleable and deepcopyable

• dwave-system 0.9.4 -> 0.9.5

  • unembed_sampleset now accepts multiple chain break resolution methods

• dwave-tabu 0.2.2 -> 0.3.0

  • dimod 0.9.x support (all BQM types)
  • Dropped Python 2 and 3.4 support

• dwave-inspector 0.1.5 -> 0.2.1

  • Console warnings filter and per-sample toggle
  • Sample indices in popover on console warnings
  • UX and edge cases handling improvements in console warnings
  • Increased node margin for graph views, addressing regression
  • Binning and correct logical sample index in console warnings
  • Add missing units in thermalization labels

• pyqubo 0.3.0 -> 0.4.0

  • Compilation is optimized and it has become about 10x faster

Package versions

dimod==0.9.2
dwave-cloud-client==0.7.2
dwave-hybrid==0.4.3
dwave-inspector==0.2.1
dwave-neal==0.5.4
dwave-networkx==0.8.6
dwave-qbsolv==0.3.0
dwave-system==0.9.5
dwave-tabu==0.3.0
dwavebinarycsp==0.1.2
minorminer==0.1.9
penaltymodel==0.16.3
penaltymodel-cache==0.4.1
penaltymodel-lp==0.1.3
pyqubo>=0.4.0

Extras, all

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

2.1.1

Changelog

• dwave-cloud-client 0.7.1 -> 0.7.2

  • StructuredSolver.sample_bqm was improperly handling QUBOs, now it
    correctly samples them as QUBO QMIs (#375)
  • some doctests were failing, and now they're skipped

• dwave-system 0.9.2 -> 0.9.4

  • Install dwave-tabu which is needed for the dwave.system.testing module
  • Fixed QUBO sampling bug in DWaveSampler introduced in 0.9.2 (#286)

• dwavebinarycsp 0.1.1 -> 0.1.2

  • Update introduction doc
  • Doctest fails

• penaltymodel-mip 0.2.2 -> 0.2.3

  • Will handle the case when all decision configurations are defined

• penaltymodel-maxgap 0.5.2 -> 0.5.3

  • Bump up pysmt to 0.8.0

Package versions

dimod==0.9.1
dwave-cloud-client==0.7.2
dwave-hybrid==0.4.3
dwave-inspector==0.1.5
dwave-neal==0.5.4
dwave-networkx==0.8.6
dwave-qbsolv==0.3.0
dwave-system==0.9.4
dwave-tabu==0.2.2
dwavebinarycsp==0.1.2
minorminer==0.1.9
penaltymodel==0.16.3
penaltymodel-cache==0.4.1
penaltymodel-lp==0.1.3
pyqubo>=0.3.0

Extras, all

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

2.1.0

Package versions

dimod==0.9.1
dwave-cloud-client==0.7.1
dwave-hybrid==0.4.3
dwave-inspector==0.1.5
dwave-neal==0.5.4
dwave-networkx==0.8.6
dwave-qbsolv==0.3.0
dwave-system==0.9.2
dwave-tabu==0.2.2
dwavebinarycsp==0.1.1
minorminer==0.1.9
penaltymodel==0.16.3
penaltymodel-cache==0.4.1
penaltymodel-lp==0.1.3
pyqubo>=0.3.0

2.0.1

Fixes

• dwavebinarycsp==0.1.1 which includes a fix for compatibility with dimod 0.9.0

New Features

• A new 'all' install flag that will install penaltymodel-maxgap and penaltymodel-mip