Hi there, Novak, and welcome again to the forums!
Can you be a little more specific as to what model (tegra3 or S4/LTE) that you have, as well as if it's unlocked or carrier branded (and which carrier, if so)? That way we can help you figure out if you should have an update or not.
As BigCiX said above, us on at&t with carrier locked S4/LTE handsets are still waiting, but most other carriers have released the update, as far as we know. But, with more information, we should be able to track down whether you should have an update or not.