If you buy Titanfall for the Xbox One, the first patch will be available to download as soon as you get the game on March 11. In fact, the patch is available now, for those players who get the game early. Respawn already confirmed that if you do manage to get an early (and legitimate) copy of Titanfall, you can play it without fear of being banned.
Respawn hasn’t released patch notes, so we don’t know for sure what the patch contains, but we do know that it’s 840 MB. We’ll keep you updated as we learn more.
About playing early: We won’t stop or ban legit copies. It is prelaunch, so there may be interruptions in service as we prep servers.
— Vince Zampella (@VinceZampella) March 7, 2014