Hi Xaviour82, and welcome to AF
First question is, where are you? The update rolls out by country, so that's key - I'm assuming you bought a phone released for your country rather than an import.
4.2 is our for the One, but as gtbarry says not everyone gets it at the same time. It depends on where you are, plus it will almost certainly be slower if you have a network branded phone rather than unlocked/unbranded stock.