New Features:-

Uncapped framerates with optional vsync
Physx support with multi-threading
Ragdoll physics with force impact
Test game menu (realtime visual controls)
Unified shaders with fog and ambient lighting
Auto assign segment and entity shaders
Universe flashlight shader
HDR Bloom post process effect
Dynamic entity shadows
Static shadow volumes for dynamic entities
Advanced explosion and particle FX
Dynamic vegetation shader
Weapon wheel and flak camera
Extra blood mode and gibbing
ReShade support for additional DX9 effects
New launcher for auto updating and lots more

Improvements:-

Native 1080p rendering with 720p huds
Free memory on exit game
Lightmap resolution and compression
Shader compatibility for Nvidia and AMD
Xbox controller support
Player collision
Entity pickup physics
Fog and water rendering
Water physics
Planar shadow perspective
Lightrays shader effect
Updated gunspecs for stock weapons
Moving clouds with alpha blending
Optimised water performance
Minimum specs required:

CPU
: AMD Athlon 64 X2 5200+ Dual Core 2.60 GHz / Intel Core 2 Duo E6420 Dual Core 2.13 GHz
RAM: 4 GB
OS: Windows 8.1, Windows 10 or 11
Video Card: NVIDIA GeForce 8800 GT 512MB or better / ATI Radeon HD 4830 512MB graphics card or better