This is the last update for this year so we decided to make it more special. It includes three very important new features: super-large worlds, procedural asteroids and exploration! With super-large worlds we have increased the size of the world to 1,000,000,000 km in diameter; this means that practically there are no boundaries and you can travel as far as you want without experiencing shaky movements and rotations. The “procedural asteroids” feature adds an infinite number of asteroids to the game world - all these asteroids are fully destructible and don’t consume RAM/memory. The exploration feature adds a practically infinite number of ships and stations to the game world, so there will always be something to discover, explore, acquire and conquer. For more details about the new features, please read Marek's blog post: http://blog.marekrosa.org/2014/12/space-engineers-super-large-worlds_17.html

https://www.youtube.com/watch?v=ZF9Wnyss69k

Full list of new features and fixes: http://forums.keenswh.com/post?id=7217613