Recent improvements to a version of the Wilson-Devinney program

We summarize recent improvements to a version of the Wilson-Devinney progra m that is widely used for the analysis of eclipsing binary data, and we des cribe the new WD95 program. WD95 contains the University of Calgary version of the Wilson-Devinney code, which supports the use of the Kurucz atmosphe re models; it provides options to use multiple epoch data and multiwaveleng th synoptic passbands. The WD95 program contains an improved input/output i nterface, simplex algorithms for initial searches and tests, and versions o f Wilson-Devinney DC and LC programs and options to switch to automatic dif ferential corrections or a damped least-squares solver using normal equatio ns that are modified as per the Levenberg-Marquardt scheme. This paper desc ribes some tests of the damped least-squares solver with simulated data.