Here is a list of major updates to the library:

  • 2022-07-05: Added package LOGDFL which is a penalty-barrier derivative-free algorithm for the solution of constrained black-box minimization problems
  • 2022-04-14: Added package DFMOINT which is a derivative-free approach to mixed integer constrained multiobjective nonsmooth optimization
  • 2021-03-12: Added (reference for) package ORD, optimize refine and drop, which is a derivative-free solver for structured optimization and black-box adversarial attacks problems
  • 2020-11-30: Added the python version of package DFLINT kindly provided by D.M. Pinto and F. Dominici
  • 2020-07-15: Fixed a (minor) bug in package DFO-TRNS which caused an error at run time with Matlab R2020a
  • 2019-06-10: Added package DFO-TRNS which is a derivative-free trust-region algorithm for unconstrained optimization of non-smooth black-box functions
  • 2019-03-22: Fixed a (minor) bug in package DFLgen 
  • 2018-12-06: Added package TESTINT containing test problems for black-box integer programming
  • 2018-05-18: The new DFL web page is finally online: www.iasi.cnr.it/~liuzzi/DFL
  • 2018-05-22: Added matlab implementation for the package SDPEN
  • 2018-05-22: Added matlab implementation for the package DFLBOX
  • 2018-05-08: Fixed a bug in package DFLINT which could cause loss of integrality during optimization
  • 2018-04-10: Added package DFLINT which is an algorithm for inequality constrained integer optimization problems with box constraints
  • 2017-11-14: Added package MOIF which is an implicit filtering algorithm for multiobjective optimization problems with box constraints
  • 2017-10-02: Added Python version of the algorithm in package ACRS
  • 2017-09-21: Added Python version of the algorithm in packages SDBOX and DFBOX_IMPR
  • 2017-09-20: Added package DFBOX_IMPR and improved version of SDBOX code
  • 2017-05-29: Added package MODIR which is a DIRECT-type algorithm for multiobjective global optimization
  • 2017-01-20: Fixed a bug in the C version of SDPEN that occurred when dynamically allocating data structures
  • 2016-11-23: Added Matlab version of the algorithm in the package SDBOX
  • 2016-11-22: Added Matlab version of the algorithm in the package ACRS
  • 2016-09-22: Added package DIRDFN which is a DiRect algorithm with derivative-free local searches for general constrained global optimization problems
  • 2016-04-01: Each user can choose to be notified upon important updates to the library
  • 2016-03-23: Added package TESTMO a collection of bound constrained problems for Multiobjective Optimization
  • 2016-03-15: Added package DFMO which is a Derivative-Free algorithm for Multiobjective Optimization problems with bound and general inequality constraints
  • 2015-10-01: Fixed a minor bug in the DFSA package
  • Added the package DFSA which is a Derivative-Free Simulated Annealing algorithm for general constrained global optimization problems
  • Added an interface for the Julia language to the DIRECT package
  • Added an interface for the Julia language to the SDBOX package
  • Added "All packages" functionality. It is now possible to require download of all the packages in the library by choosing "All packages" in the list of available packages. All the packages will then be delivered (as attachments to separate messagges) to the provided email address.
  • Fixed a bug in the DFN package
  • 2011-07-15: The DFL - Derivative-Free Library is online