Overview

• The cutoff took effect on June 1 after WhatsApp delayed its original May 5 deadline to give users extra time.
• iPhone 5s, iPhone 6 and iPhone 6 Plus are now incompatible because they cannot run iOS 15.1.
• Legacy Android models including Samsung Galaxy S III, HTC One X and Sony Xperia Z no longer meet the minimum Android 5.0 requirement.
• WhatsApp alerted affected users in-app with multiple reminders to update their operating systems or switch devices before support ended.
• Impacted users can still send standard SMS or use Apple’s iMessage, though these options lack WhatsApp features like group chats.