Version 2.4 includes a number of new features, but does not change the results of the simulation. It includes: the possibility to start a simulation from a binary file, which was created during another model run. the possibility to choose which model variables should be written to csv files and which not, thus reducing memory demand. proper interpolation between two model states, if the desired output datum is between two model steps. Before, the timestep was adjusted to meet the output datum, which caused the simulation results to (very slightly) depend on the output times. a progressbar showing what percentage of total simulation time has elapsed.