I also got the TU on Xbox One, here's some info I found on reddit, note that these are player observed and not official, there may be more info or other changes and this is for PS4 although I'm assuming most will be changed on all platforms:

Certain objective based game modes now reward +100 for general kills instead of +50, and kills in the hardpoint are +125 kills in domination spots are +150. Domination and Hardpoint captures are now +200

Kill Feed has more "word spacing", less compact

Player arrow is now white instead of blue

Challenges previously completed from last prestige unlock from a kill of the challenges description.
(Ex: If you have the marksman challenge completed, only one headshot with that weapon will unlock all further headshot challenges)
Edit: Before you had to get consecutive headshots or kills to complete the challenges, this patch improves that since if you were to get only one headshot or kill it would unlock ALL further challenges at once of that category.

>And it looks like challenges will not boost your camo progress anymore<

Players can now get kicked from Hardcore Matches from teamkilling >Post<

Combat knives have been removed from Create A Class so you will be able to have an extra slot if no secondary is chosen

SMG's overall have more damage at increased range and I have noticed that the ASM1 has an extraordinary increase in both damage and range, respectfully.

The BAL-27 has not been changed as much as I would've thought but then again I do not use that gun often.

The armory now has separated into categories for Redeemables and Non-Redeemables

New Assault Rifle (AE4-Energy Weapon) challenge page for added DLC - Twitter Picture link: [ Register or Signin to view external links. ]

Famous_Energy wrote I don't think AW had a TU yet. I have yet to see any tweets or info on there site. If you had a dashboard update, thats is completely different then a TU.

Yeah I don't think there was either.