This release corrects the ISO 286 calculations. Results now match the published standard, so values differ from previous versions for most fit classes — interference fits especially. • Rebuilt the ISO 286 tolerance tables. Hole and shaft deviations, tolerance grades, and the finer nominal size ranges now follow ISO 286-1 and ISO 286-2 exactly. • Fixed inch mode, which showed millimetre values labelled as inches. Diameters entered in inches are converted properly, and results are shown to a useful precision. • Fixed press-fit contact pressure and assembly force, which read about 10% high, and the warnings now use the materials and friction you enter. • Corrected the shaft-basis interference recommendations, which suggested clearance fits. • English now appears as a supported language. • Added titles to the Reference and Settings tabs, localized the theme setting, and improved VoiceOver support. • Diameters outside the supported range, and tolerance classes ISO does not define at a given size, are now explained instead of showing a blank result.