Barbarian behavior has been improved. They now choose their targets, attacking the player when possible or destroying wood to escape instead of trying to get through stone. When barbarians attack, they will shout as they come near to the player. Sometimes the barbarians will spawn in groups instead of one at a time. They can also attack while they are running. Additionally, we have added particle effects for weapons and tools including blood, splinters and sparks. Moreover, new roof blocks have been added for survival building - the wooden roof, hay roof and their variants (corner, inverted corner). Also if you kill a deer you can get meat from it. Lastly, players will start from now on with 55 food points when they respawn in the game.
https://www.youtube.com/watch?v=W7obruAmh_M
Full list of new features and fixes: http://forum.keenswh.com/threads/7366030/