The Ghost Recon: Wildlands day one patch notes are broke up into five sections, starting with a list of example of the hefty swathe of changes PC players benefitted from. Here are the details:

1. Ghost Recon: Wildlands PC build improvements
Vehicle improvements
Ramming debug and improvements
Destruction debug
Handling still ongoing
Graphic glitches
Several multi GPU graphical corruptions
Stability
Performance and graphic optimizations
Reduced crashes
Player experience:
Fluidity in game
Weapon optimizations
PC Control optimization
Anti-cheat protection optimization

2. Gameplay & Missions
Fixes for various progression blockers and immersion breakers for our missions.

3. Co-op & Connectivity
Various co-op fixes regarding missions synchronization, replication, and online mechanics.

4. Player experience
Vehicle improvements
Ramming debug and improvements
Destruction debug
Handling still ongoing
Weapon optimizations
Graphic glitches fixed
Exposition adjustments to ensure clarity and ergonomics:
Lobby
TacMap
Cartel Overview
Added pop-ups to document the player on the game progression

5. Stability
Various crash fixes
Performance improvements
Framerate improvement
Stream improvement