As announced on Twitter:
Also, they've detailed some of the changes and improvements future updates will bring:
http://assassinscreed.ubi.com/en-US/news/news_detail.aspx?c=tcm:152-184353-16&ct=tcm:148-76770-32
Please visit our Live Updates blog for info on how our team is addressing the issues #ACUnity players are reporting: http://assassinscreed.com/liveupdates
Also, they've detailed some of the changes and improvements future updates will bring:
In this blog post, we wanted to touch on the fixes to the game that were working on right now.
First, as a quick reminder, a Day 1 update has already been released which fixes a number of issues. Make sure your console or PC is connected to the internet to benefit from the updates fixes.
We are currently working on our next update that will help address some of the specific issues some players are having, including:
- Arno falling through the ground.
- Game crashing when joining a co-op session.
- Arno getting caught inside of hay carts.
- Delay in reaching the main menu screen at game start.
In addition, we are already looking into many of the other issues youve told us about and we have more updates planned. This list doesnt capture everything, but here are the most widely-reported problems weve heard about from you:
- Frame rate issues.
- Graphical and collision issues.
- Matchmaking co-op issues.
- Helix Credits issues.
We will be providing additional details in the coming days, so check back for updates. In the meantime, please continue to send us your feedback, and leave a comment if you have any questions for us.
-The AC Live Updates Team
http://assassinscreed.ubi.com/en-US/news/news_detail.aspx?c=tcm:152-184353-16&ct=tcm:148-76770-32