WhatsApp will cease functionality on certain older iPhone and iPad models starting November 30th. Meta, the parent company of WhatsApp, is updating its technical requirements, mandating iOS 15.5 or iPadOS 15.5 as the minimum operating system. Affected iPhones include the 6s, 7, and the first generation iPhone SE, while the iPad Air 2 and iPad mini 4 are also impacted. However, users are not immediately losing access; those with compatible updates available can continue using the app. WhatsApp encourages users to check for software updates in their device settings to ensure compatibility. Currently, the listed iPhones and iPads are still capable of receiving the necessary iOS/iPadOS updates. Maintaining updated software will allow continued use of WhatsApp after the November deadline.