Owners of older iPhones who skipped recent software updates face a hard stop on Monday, Nov. 30. From that date WhatsApp requires iOS 15.5 or newer, and a phone still running iOS 15.0 through 15.4 will no longer be able to use the app. The cutoff covers WhatsApp Business as well as the regular messenger.
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For nearly everyone affected, the remedy is a free software download rather than a new handset. The iPhones that stop at iOS 15 can all reach a version well above the new floor, so the people who actually lose WhatsApp will mostly be those who Apple’s final release for those models, iOS 15.8.8, sits well above the cutoff, so the gap to close is a matter of minutes on a home network rather than a purchase decision.
The iOS 15.5 floor and the Nov. 30 date
WABetaInfo, the site that tracks WhatsApp builds before release, reported in June that after Nov. 30, 2026, WhatsApp will only work on devices with iOS 15.5 or newer. The same report says the Business app shares the deadline because both apps share the same underlying source code. WhatsApp keeps its list of minimum versions on its Help Center page about supported devices, which the coverage cited here points to as the origin of the date.
Notebookcheck described the change as a move of the minimum from iOS 15.1 to iOS 15.5, and noted that the iPhone date was published alongside an Android cutoff that drew most of the attention. Reports differ slightly on the old floor, but they agree on the line that matters: anything below 15.5 Owners who see the older number should treat Nov. 30 as the practical deadline, since no source read for this article describes a grace period or an extension.
The five iPhones that top out on iOS 15
Which handsets are in danger? Notebookcheck lists the iPhones that run iOS 15 as the iPhone 6s, 6s Plus, SE (first generation), 7 and 7 Plus. Legit.ng’s Sept. 18 report on the cutoff names the same five models and adds that older iPads such as the iPad Air 2 and iPad mini 4 are also affected. The Business app follows the same minimum, so shops running customer chats on these devices are in scope too. Each of these devices can install iOS 15.8.8 or its iPadOS equivalent, the last release available for them, and Notebookcheck dates that build to May 11, 2026.
Notebookcheck frames the consequence narrowly: because the hardware can run newer software, only people who skipped those updates will lose WhatsApp access in November. Legit.ng adds that no new phone is needed to stay on the service, and that the installed version can be confirmed under Settings, General, About.
Why WhatsApp raised the minimum
Business Today Malaysia reported on June 10 that WhatsApp considers compatibility with old operating systems increasingly challenging as new features rely on newer iOS capabilities. According to WABetaInfo, WhatsApp says supporting older iOS versions limits new features and slows development, and it expects few users to be affected.
The company has not published a statistic on how many iPhones sit below 15.5, so the size of the group is unknown. WhatsApp’s stated logic is that old operating systems lack current security updates and the system features that new functions depend on, and that those users are a small Because 15.8.8 is the last update these models will receive, installing it settles the question for as long as WhatsApp keeps 15.5 as its floor, and nothing newer is waiting for them.
Checking the iOS version before Nov. 30
The check takes under a minute. On an iPhone, open Settings, then General, then About, and read the iOS version number. If it reads below 15.5, go to Settings, General, Software Update and install what is offered. The 15.8.8 release is described by Legit.ng as the final update for the five older models, and it clears the new minimum with room to spare. Legit.ng recommends confirming the installed version under About once the update finishes, and doing it before Nov. 30 rather than waiting for the app to stop opening.
The timeline gave owners months of notice. WABetaInfo’s report is dated June, and Business Today Malaysia’s coverage ran on June 10, five months before the cutoff. Notebookcheck says the iPhone date appeared on the same WhatsApp help page as an Android cutoff, and that most coverage missed it. Legit.ng’s report on Sept. 18 was still repeating the warning, and the date has not moved in any of the four accounts, which is why Monday, Nov. 30 can be stated with confidence even without the original WhatsApp text in hand.
Business users face the same deadline for a practical reason. WABetaInfo says the Business app shares its source code with the consumer app, so a shop or clinic that runs customer chats from an old iPhone loses both at once. The site advises those owners in particular to update well before the date, since a business phone that goes dark on a Monday takes its customer conversations with it.
One caveat remains. WhatsApp’s own Help Center page was not retrievable for direct reading when this article was prepared, so the exact wording of its notice rests on WABetaInfo, Notebookcheck and Legit.ng, all of which agree on iOS 15.5 and Nov. 30. Whether WhatsApp will show an in-app warning to affected phones before Monday, Nov. 30 has not been stated in any of those reports.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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