Starting November 30, 2026, WhatsApp will require iOS 15.5 or iPadOS 15.5. The change is far gentler than last year's cutoff, since every device that runs 15.1 can update to 15.5, but a handful of older models still need a software check.
Meta is tightening the minimum software requirements for WhatsApp again, and this round comes with a reassuring asterisk. Beginning November 30, 2026, the messaging app will require iOS 15.5 or newer on iPhone and iPadOS 15.5 or newer on iPad. If you have been keeping your device current, you almost certainly do not need to do anything. If you are holding onto an older iPhone or iPad, a quick trip to Settings could save your chat history from going dark.
What Meta actually announced
WhatsApp publishes these requirement changes well ahead of the enforcement date, and the company frames them as routine housekeeping. In its own words, Meta regularly reviews which operating systems it supports and retires the ones with the oldest software and the fewest active users. The reasoning is partly about security, since older OS releases stop receiving patches, and partly about capability, since newer WhatsApp features depend on frameworks that only exist in more recent versions of iOS.
The headline number is small but specific: iOS 15.5 and iPadOS 15.5. That is a minor point release, not a full version jump. Last year's change was the heavier lift, when WhatsApp moved its floor to iOS 15.1 and severed support for the iPhone 5s, iPhone 6, and iPhone 6 Plus. Those devices physically cannot install iOS 15, so they were left behind for good.
Why this cutoff is easier than the last one
The important detail this time is that the new requirement does not strand any hardware. Every iPhone and iPad capable of running iOS 15.1 or iPadOS 15.1 can also run 15.5. In other words, the dividing line is a software update, not a device replacement. Apple shipped iOS 15 across a wide range of models, and the final builds in that branch reached iOS 15.8.8 and iPadOS 15.8.8, both of which clear the new bar comfortably.
That distinction matters for anyone managing a household full of mixed-age devices. A phone that was about to be orphaned in 2025 is fine in 2026, as long as it gets the free update Apple already made available.
The devices to double-check
Most people reading this on a recent iPhone are running iOS 18 or newer and have nothing to worry about. The attention belongs on the models that topped out on iOS 15 and never advanced to iOS 16. If you or a family member still relies on one of these, open Settings, then General, then Software Update, and confirm the device is on the latest available release:
- iPhone 6s and iPhone 6s Plus
- iPhone SE (1st generation)
- iPhone 7 and iPhone 7 Plus
- iPad Air 2
- iPad mini 4
These are the units that live right at the threshold. They can run WhatsApp after November 30, but only if they are updated to iOS 15.8.8 or iPadOS 15.8.8 rather than sitting on an earlier 15.x build. Apple's iOS 15 update notes document the full history of that branch.
The ecosystem angle
This is a useful reminder of how platform lock-in and app support actually intersect. WhatsApp is not abandoning these devices because the hardware died. It is following the security and feature baseline that Apple's own software support sets. Once Apple stops shipping new iOS versions to a given chip, the apps running on top eventually inherit that ceiling. The iPhone 6s and 7 families are a textbook case: capable phones that simply aged out of the active update cycle, where the last patches available define what third-party software is willing to target.
For users invested in the Apple ecosystem, the practical takeaway is that keeping a device on its final supported OS version buys real longevity. An iPhone 6s updated to iOS 15.8.8 keeps WhatsApp working through this transition, while the same phone left on an older 15.x release would be cut off for no good reason. The update is free, and it is the difference between a phone that still messages and one that quietly stops.
Meta has not signaled an immediate move to iOS 16 as the next floor, but the pattern is clear enough. Each year the minimum creeps upward, and the devices closest to the edge are the ones worth watching. For now, the November 30 deadline asks very little: check for updates, install what Apple offers, and carry on chatting.
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