YALMIP is free of charge to use and is openly distributed, but note that

1. Copyright owned by Johan Lfberg.

2. YALMIP must be referenced when used in a published work (give me some credit for saving your valuable time!)

3. YALMIP, or forks or versions of YALMIP, may not be re-distributed as a part of a commercial product unless agreed upon with the copyright owner (if you make money from YALMIP, let me in first!)

4. YALMIP is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE (if your satellite crash or you fail your Phd due to a bug in YALMIP, your loss!).

5. Forks or versions of YALMIP must include, and follow, this license in any distribution.

Something like this could be a suitable general reference (to write , use \"{o})

YALMIP : A Toolbox for Modeling and Optimization in MATLAB. J. Lfberg. In Proceedings of the CACSD Conference, Taipei, Taiwan, 2004. (URL) (BIB)

If you use the sum-of-squares module, a reference to the associated paper might be in place

Pre- and post-processing sum-of-squares programs in practice. J. Lfberg. IEEE Transactions on Automatic Control, 54(5):1007-1011, 2009. (URL) (PDF) (BIB)

Similarily, if you rely on the automatic dualization,

Dualize it: software for automatic primal and dual conversions of conic programs. J. Lfberg. Optimization Methods and Software, 24:313 - 325, 2009. (URL) (PDF) (BIB)

or the robust optimization framework

Automatic robust convex programming. J. Lfberg. Optimization methods and software, 27(1):115-129, 2012. (URL) (BIB)

Latest release

YALMIP R20140221 (Release announcement)

Installation

Please read this.

Previous releases

YALMIP R20140217 (Release announcement)

YALMIP R20131220 (Release announcement)

YALMIP R20131002 (Release announcement)

YALMIP R20130628 (Release announcement)

YALMIP R20130405 (Release announcement)

YALMIP R20130322 (Release announcement)

YALMIP R20130213 (Release announcement)

YALMIP R20130201 (Release announcement)

YALMIP R20130128 (Release announcement)

YALMIP R20130124 (Release announcement)

YALMIP R20130111 (Release announcement)

YALMIP R20121126 (Release announcement)

YALMIP R20120926 (Release announcement)

YALMIP R20120830 (Release announcement)

YALMIP R20120830 (Release announcement)

YALMIP R20120806 (Release announcement)

YALMIP R20120609 (Release announcement)

YALMIP R20120607 (Release announcement)

YALMIP R20120420 (Release announcement)

YALMIP R20120309 (Release announcement)

YALMIP R20120109 (Release announcement)

YALMIP R20111128 (Release announcement)

YALMIP R20111118 (Release announcement)

YALMIP R20111111 (Release announcement)

YALMIP R20111014 (Release announcement)

YALMIP R20110930 (Release announcement)

YALMIP R20110608 (Release announcement)

YALMIP R20110408 (Release announcement)

YALMIP R20110318 (Release announcement)

YALMIP R20110314

YALMIP R20110201

YALMIP R20101208

YALMIP R20101208

YALMIP R20101122

YALMIP R20100903

YALMIP R20100813

YALMIP R20100702

YALMIP R20100611

YALMIP R20100512

YALMIP R20100507

YALMIP R20090505

YALMIP R20080415

YALMIP R20080414

YALMIP R20070810

YALMIP R20070523

YALMIP R20070302

YALMIP R20061208

YALMIP R20061025

YALMIP R20060519

YALMIP R20060516

YALMIP R20060329

YALMIP R20060313