Interestng read, didn't know most of this. Not that it matters in the end: at one point we just needed something simple which would just work and MessagePack do

Interestng read, didn't know most of this. Not that it matters in the end: at one point we just needed something simple which would just work and MessagePack does just that :) Btw JSON is often a popular choice, but although this is not explicitly mentioned in the main article as a con which is an oversight imo, the actual JSON standard does not support NaN/+-Inf for floating point. That's insane, which is why most implementations have an option to allow that anyway, but not all, which can be quite the showstopper.