CQM.set_objective-speedup-05801899c467408d.yaml

---
features:
  - |
    Add ``BinaryQuadraticModel::lower_bound()`` and
    ``BinaryQuadraticModel::upper_bound()`` methods to the C++ code.
  - |
    Improve the performance of the ``QuadraticModel.update()`` method.
  - |
    Improve the performance of the ``ConstrainedQuadraticModel.set_objective()`` method.
  - |
    ``QuadraticModel.update()`` now accepts binary quadratic models in addition
    to quadratic models.