A new driver from NVIDIA hit the web, the GeForce Game Ready 397.31 WHQL provides optimizations for BattleTech and FrostPunk. This new release contains several new features, including support for NVIDIA RTX ray tracing technology, Vulkan 1.1, updates for HD Audio, some installer improvements, and the inclusion of the NVDECODE API. Do note that NVIDIA RTX is exclusively for Volta GPUs, so the only "gaming GPU" that can run it is the $2,999.99 NVIDIA Titan V.
There are some new or updated SLI and 3D Vision profiles, you can check those in the full changelog. I'm not listing them as these technologies are rarely used these days. Also worth mentioning is that this release no longer supports 32-bit operating systems, nor the NVIDIA Fermi GPU generation. But that was communicated weeks ago.
NVIDIA RTX Technology:
Developer preview for NVIDIA RTX ray tracing technology for DirectX 12. NVIDIA
RTX supports the Microsoft DirectX Raytracing (DXR) API on NVIDIA Volta GPUs.
In order to get started with developing DirectX Raytracing applications accelerated by
RTX, you'll need the following:
NVIDIA Volta GPU
NVIDIA driver version 396 or higher
Windows 10 RS4
Microsoft's DXR developer package, consisting of DXR-enabled D3D runtimes,
HLSL compiler, and headers
This driver release provides full support for the new Vulkan 1.1 API and passes the
Vulkan Conformance Test Suite (CTS) version 220.127.116.11.
This driver adds new sample rates 32 kHz, 88.2 kHz, and 176.4 kHz to the HDMI
device for all GPUs.
Display Driver Standalone Installer
The standalone display driver installer now removes extracted files after installing the
driver, leaving a smaller footprint on the hard drive.
Display Driver Libraries
Added new libraries (nvdlist.dll and nvdlistx.dll) to support Optimus and MSHybrid
Added a new API that lets the client reconfigure the decoder resolution and other post
processing parameters (such as the display resolution, cropping rectangle, and aspect
ratio of the decoded frame) without having to destroy and recreate the decoder
instance. This API is useful in scenarios where the decoder instance initialization time
takes up a significant portion of the overall decode execution time; for example, in
back-to-back decoding of multiple short clips of different resolutions.
The new API will be included in Video Codec SDK 8.2, which is expected to release in
late Q2 2018.
Fixed Issues in this Release
[GeForce GTX 1080 Ti][Doom]: The game crashes due to the driver reverting to
OpenGL 1.1 when HDR is enabled. 
[GeForce GTX 1060][Far Cry 5]: The game crashes after a few minutes of game play.
NvfbcPluginWindow temporarily prevents Windows from shutting down after
launching a Steam game. 
[Firefox]: Driver TDR error may occur when using Firefox. 
[GeForce GTX 1060][Rise of Tomb Raider]: Flickering/corruption occurs when
opening the in-game options UI. 
[NVIDIA Control Panel][SLI][Diablo III]: With V-Sync on and SLI enabled, the game
freezes after switching windows (ALT+TAB) a few times.