This update to ring in the new year is aimed at improving performance. A lot of subtle changes has been done, trimming and optimizing effects, reduce items rendered in the overview cam and many other things, while the larger parts are noted in the changelog below.
Full Changelog
* Introduced Mipmap streaming to reduce memory loads of large textures
* Repack all textures for streaming and improved compression, reducing build with around 25% in on-disc size
* Re-worked torches and flashlights to improve performance
* Tweaked performance-profile settings for Ultra, High and Low