Operation Raccoon City has received a patch. Many fixes are for the multiplayer components and improvemnts to AI.
Capcom Unity's Brelston has posted a summary of some of the changes:
-Improved matching. Easier to connect and added each user's NAT info to main menu for easier troubleshooting.
-Matchmaking from invites improved.
-Ally AI improved
-Enemy AI and responses improved
-Adjusted various elements of weaponry, including ammo count, knockdown distance, weapon respawn times etc
-Improved aiming/fire accuracy
-Items can be picked up while dashing
-Infinite CQC combo addressed (can't string together endless attacks)
-Players can take cover immediately following a dive
-Also a fair number of bugs addressed