QuantumSoft today released pro Fit 5.6.2, an update to the company’s tool for the analysis and presentation of numerical data and mathematical functions. Version 5.6.2 offers various bug fixes, as well as Mac OS X 10.2 compatibility. QuantumSoft pro Fit 5.6.2 sells for US$95 and is a free upgrade for current owners of pro Fit 5.5.x or 5.6.x.