r3.0.0

• constraints handling with an Augmented Lagrangian, see cma.fmin_con
• x0 and sigma0 cannot be a string anymore, but x0 may be a callable (a function)
• injections are excluded from negative covariance matrix updates addressing #124
• improved generic Logger, see cma.logger.Logger
• a wrapper as scikit optimizer, use import cma.wrapper
• plotting works now interactively also in a Jupyter notebook
• logger.plot(addcols=1) plots additionally correlation and precision matrices (experimental)
• new tolflatfitness termination option (replaces warnings/errors)
• new tolfunrel termination option (deactivated by default)
• "signals" file is active by default but ignored in verbose=-9 setting
• various other fixes and small improvements

available at PyPI.

r2.7.0

• CMADataLogger code moved to its own logger module
• output files go into a separate folder outcmaes by default
• improved matplotlib 3 compatibility
• contour_data and semilogy_signed helper functions
• fitness_transformations.EvalParallel2 class (different interface)
• fitness_models.LQModel introduced

available at PyPI.

r2.6.1

Nothing special here, some fixes, some small things added.

r2.6.0

The initial solution x0 can be a callable now, which is useful e.g. for the restarted IPOP version.