As of September 11th, Apple will no longer allow users to sign into Epic Games accounts using “Sign in with Apple.” If you’re using the Apple sign-in feature, make sure to update your Epic Games account email and password before Friday.

Apple will no longer allow users to sign into Epic Games accounts using “Sign In with Apple” as soon as September 11, 2020. If you used “Sign In with Apple”, please make sure your email and password are up to date. https://t.co/4XZX5g0eaf

— Epic Games Store (@EpicGames) September 9, 2020

This change is the latest petty move in the Apple versus Epic battle. For those just tuning in, last month, Epic began offering Fortnite discounts to players who bypassed the Android and iOS app stores — Epic has long complained about the commission fees those stores charge. Apple responded by removing Fortnite from the App Store. Now, the two are going back and forth in court.