v2.5.0

• Switch from using Fraction to Decimal due to much better benchmarked speeds.

v2.4.0

• Add an optional allow_nan: bool kwarg for the Objective class with a default value of False. Refer to the docstring of Objective.__init__ for more info about it.

v2.3.2

• Improve the type annotations for ChoiceVar and Gridvar.

v2.3.1

• Use efficient imports from itertools and math.

v2.3.0

• Use an efficient encoding of length 0 for RandintVar when its lower and upper bounds are equal. Previously its encoding length was always 1.

v2.2.1

• Fix a bug to support duplicated variables.

v2.2.0

• Use an efficient encoding of length 0 for GridVar of length 1. Previously its encoding length was always 1.

v2.1.2

• Support dict input for ChoiceVar and GridVar via its explicit internal conversion to tuple.

v2.1.1

• Return NaN if a NaN is present in the encoded array. This was found to be the case with scipy.optimize.dual_annealing.

v2.1.0

• Update various variable bounds to use string representations when dividing and adding floats. This prevents errors such as for example with QuniformVar(0, 99.9, 0.1) decoding its encoded boundary values. It is unclear how best to address floating point issues.