Since the page went 404, I'll upload a screencap of what the page said before it went down:
Originally Posted by scitek
So, if any of you want to go ahead and download the texture pack and DX11 files, they're available. You still need to wait for patch 1.9 to be able to install them, though.
DX11 (546 MB)
High-Res Texture Pack (1.7 GB)
Despite what the links say, they aren't 4.5 and 5.7 GB.