Today's update adds new game mode: Endless Night. In this mode there's no base building or shopping, only brainless zombie-shooting. It's designed as a short distraction so that a single playthrough takes just a couple minutes. There are also three new achievements related to this mode.
Other features included in this update:
- More responsive user interface
- Keyboard controls mapping
- Leaderboard anti-cheat tools
- Better multithreading support
- Option to adjust amount of blood
- Minor bug fixes
While it took quite a long time to release this update, the behind-the-scenes work done will allow future updates to be released more frequently - the next one will be released in few weeks.