Modern Warfare 4 patch notes, in plain English
Specs and FPS · Best PC settings · Loadouts · Patch notes · WARDOGS hub
Official patch notes from callofduty.com, newest first, summarised in our own words with a focus on performance, crashes and stability on PC, console and Switch 2. Weapon tuning tables stay on the official page: follow the link for exact values.
| Date | Official notes | What it means for performance |
|---|---|---|
| 1 Sep 2026 | Modern Warfare 4 Beta patch notes (21 Aug to 1 Sep 2026) | PC: general performance and frame-rate stability work, lower memory use on high-VRAM cards and fixes for intermittent GPU hitching on all GPU brands (28 Aug), then further performance improvements (29 Aug). Also fixed an FPS drop when readying a Flash Grenade (23 Aug). Known issues at the start included a hitch in the first PC match, hitching with recording tools such as NVIDIA ShadowPlay, and frame drops in ADS with Quick Draw attachments. Switch 2 performance improvements were listed as a focus. |
Official notes are linked on callofduty.com/patchnotes. We find new ones through Activision's official Call of Duty announcements on Steam (Steam Web API), last checked 20 October 2026, 17:29 UK time. Summaries are ours; read the linked notes for the official wording. Season 1 for MW4 and Warzone starts on 6 November (Infinity Ward roadmap), and we aim to add each update here on the day it's published.
What we look for in each update
- PC: frame rate, hitching, shader compilation, memory and VRAM use, upscaler and frame generation fixes, driver notes.
- Consoles and Switch 2: performance modes, resolution and frame-rate changes.
- Crashes and stability fixes on any platform.
- Settings that are renamed, added or reset by an update.
RigFPS is independent and not affiliated with, endorsed or sponsored by Activision, Infinity Ward, Beenox or Digital Legends. Call of Duty and Modern Warfare are trademarks of Activision Publishing, Inc. We use the names only to describe the game; no logos or game art are used.