Verified patch notes, affected platforms and developer-listed issues.

Call of Duty: Warzone
Call Of Duty Bo7 Warzone Season 03 Reloaded Patch Notes
Apr 1, 2026 · Developer update tracked by Buffs & Bugs
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PC has specific information in the official patch notes.
Official note“These changes do not apply until Season 04, at which point you can expect the following: New Security Requirement: Microsoft Azure Attestation (MAA) Microsoft Azure Attestation (MAA) will be required on PC to access…”
Official note“This system will help us verify that your PC environment hasn’t been tampered with, which is a key step in preventing cheating.”
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