Today, Apple has unsigned watchOS 11.4 beta 1 for all Apple Watch Series 6 models, meaning it is no longer possible for those users to test out the new beta. This news comes from Aaron Perris on X. Theyve also unsigned iOS 18.4 beta 1 for some iPhone 12 models.watchOS 11.4 beta pulledApple released the watchOS 11.4 beta yesterday, alongside iOS 18.4 beta, visionOS 2.4 beta, and more. While those earlier betas had a number of new features, it isnt quite clear what changed with watchOS 11.4 beta.However, two users on the r/watchOSbeta subreddit reported that their Apple Watch bricked after installing the new update. One of them specified that they were using a Series 6, while the other didnt specify. As a result, Apple seemingly decided to pull the new beta.According to Aaron, this impacts all models of Series 6:Apple Watch Series 6 (GPS, 40mm) Apple Watch Series 6 (GPS, 44mm) Apple Watch Series 6 (GPS + Cellular, 40mm) Apple Watch Series 6 (GPS + Cellular, 44mm)iOS and iPadOS 18.4 beta pulledAdditionally, Apple has unsigned iOS 18.4 beta 1 for a number of iOS devices, including most of the iPhone 12 lineup, a few iPad models released in 2020, and cellular versions of the most recent iPad Air model. Its unclear what exactly the issue is here, but a number of users reported boot looping. Heres a full list of pulled models:iPhone 12 Pro iPhone 12 Pro Max iPhone 12 mini iPad 8 (Cellular) iPad Air 4 (Wi-Fi)iPad Air 4 (Cellular)iPad Air 11-inch (M2) (Cellular) iPad Air 13-inch (M2) (Cellular)Hopefully, it doesnt take too long for Apple to re-release the betas. Its interesting to me that most of the devices impacted were released during 2020.My favorite iPhone accessories on Amazon:Follow Michael:X/Twitter,Bluesky,InstagramAdd 9to5Mac to your Google News feed. FTC: We use income earning auto affiliate links. More.Youre reading 9to5Mac experts who break news about Apple and its surrounding ecosystem, day after day. Be sure to check out our homepage for all the latest news, and follow 9to5Mac on Twitter, Facebook, and LinkedIn to stay in the loop. Dont know where to start? Check out our exclusive stories, reviews, how-tos, and subscribe to our YouTube channel