Guys when z30 will get the update.

Posted via CB10

Take a look at the first part of this article:
From the Editor's Desk: Classic, 10.3.1, CES, MWC and more! | CrackBerry.com
Sometime this month we can expect the official roll-out, based on current official info. (Although there are many unsubstantiated rumours floating about.)
As we have too many threads discussing this already, thread closed.