Today, AMD released a new driver update for Call of Duty: Black Ops 4 and added Windows 10 October 2018 Update support with the latest driver. According to the press release, AMD Radeon Adrenalin 18.10.1 brings software improvements and driver optimizations.
AMD Radeon Adrenalin 18.10.1 driver update notes
You can find the patch notes for new update below:
Support For Windows® 10 October 2018 Update
Call of Duty®: Black Ops 4
Up to 5% faster performance in Call of Duty: Black Ops 4 using Radeon™ Software Adrenalin Edition 18.10.1 on the Radeon™ RX Vega 64 (8GB) graphics card than with Radeon™ Software Adrenalin Edition 18.9.3 at 1920×1080 (1080p).RS-258
Up to 6% faster performance in Call of Duty: Black Ops 4 using Radeon™ Software Adrenalin Edition 18.10.1 on the Radeon™ RX 580 (8GB) graphics card than with Radeon™ Software Adrenalin Edition 18.9.3 at 1920×1080 (1080p).RS-259
HDMI™ Audio Drivers may sometimes not upgrade during Radeon Software installation.
Fortnite™ may experience lighting corruption when effects quality is set to High or Epic.
System configurations with 16+ CPU cores may experience a random system reboot during installation when upgrading Radeon Software from a version older than RSAE 18.8.1.
Sea of Thieves™ may experience flickering textures in multi GPU system configurations.
When using Radeon Overlay on system configurations with the latest Windows®10 October 2018 Update some users may experience intermittent instability or game crashes.
Microsoft® Office applications may experience lag or stutter when dragging applications.
Radeon RX Vega Series graphics products may experience elevated memory clocks during system idle.