After many years FisicaLab 0.4.0 is available. Comes with a new module for thermodynamics and a bug fixed in chalkboard. Most changes are internal, a reorganization of different solvers that will make easy, in future versions, save and load physics problems from a file. Due to a bug in GNUstep with Tool Tips, now there is an alternative interface based on IUP. Tool Tips are used in FisicaLab to show information of each element at chalkboard. For the moment there ins´t binary packages. But maybe later.