See the Compatibility Considerations subheading for each of these changes or new features:

• Enhanced Robustness in fminunc

• Levenberg-Marquardt Algorithm Tweak

• fmincon sqp Algorithm Tweak

See the Compatibility Considerations subheading for each of these changes or new features:

• Gauss-Newton Algorithm Removed

• DerivativeCheck Changes

• fmincon ScaleProblem Default Changed

• fsolve trust-region-dogleg Algorithm Change

• Conversion of Error and Warning Message Identifiers

See the Compatibility Considerations subheading for each of these changes or new features:

• New Quadratic Programming Algorithm

• New Defaults in DiffMinChange and DiffMaxChange Options

• Output Structure Tweak

See the Compatibility Considerations subheading for this change:

• lsqnonneg No Longer Uses x0

See the Compatibility Considerations subheading for each of these new features or changes:

• Enhanced Exit Messages in Selected Solvers

• Changes in quadprog

• Changes in linprog

• Multiobjective optimValues Changes

See the Compatibility Considerations subheading for each of these new features or changes:

• Enhanced Exit Messages in Selected Solvers

• Change in linprog Simplex Algorithm

• Change in fminunc Exit Flag

See the Compatibility Considerations subheading for each of these new features or changes:

• fsolve, lsqcurvefit, lsqnonlin Algorithm and Options Changes

• Finite Difference Algorithm Tweaked

• DerivativeCheck Tolerance Changed

See the Compatibility Considerations subheading for each of these new features or changes:

• New fmincon Solver, New Option Algorithm for fmincon, Option LargeScale Changed

• Default PrecondBandWidth = Inf in lsqcurvefit, lsqnonlin, and fsolve

• New Option TolConSQP with Incompatible Default Value

See the Compatibility Considerations subheading for this change:

• Changes to Outputs of Multiobjective Solvers

See the Compatibility Considerations subheading for this change:

• Changes to the Output Function