Seaching for ConTeXt tutorials and documentation I mostly found unfinished books older than 5 years, yet the last stable release was in 2015 and it seems widely used.
Is this the intended state? I know that ConTeXt is aimed at commercial users so online documentation might not be a priority; or maybe is it that in the last decade ConTeXt remained so stable and backward compatible that those tutorial are still valid despite the age?