May 27th, 2011· Various minor bugfixes.
September 7th, 2010· Various fixes to compile under Microsoft Visual Studio, as well a bugfix to absolute tolerance settings.
July 16th, 2010· The SLSQP algorithm was added for gradient-based nonlinearly constrained optimization.
· Implicit per-dimension scaling is done in BOBYQA and COBYLA.
· Various bugs were fixed.
July 8th, 2010· This version corrects a configure check for Python include directories, missing version functions in the Guile interface.
June 17th, 2010· Bug fix in Fortran API (for nlo_get_ functions returning arrays).
· Fixed buggy compilation with MinGW.
December 3rd, 2009· Added Powell's BOBYQA algorithm for box-constrained optimization without derivatives, an improvement on NEWUOA.
· Added ISRES evolutionary algorithm, supporting nonlinearly constrained global optimization.
· New functions nlopt_{set/get}_stochastic_population to provide optional greater control over the random "population" sizes in stochastic algorithms (although it still has a sensible default).
· Bug fix: remove extraneous text accidentally included in nlopt.f Fortran include file.
· Bug fix: configure script now correctly handles Matlab installation when MEX_INSTALL_DIR is specified manually by the user.