Apple made an unexpected decision in December 2025 that directly affects hundreds of millions of iPhone users around the world. The company limited the iOS 18.7.3 update exclusively to iPhone XS, XS Max and XR models, preventing newer devices from receiving new security fixes in this version.
This change means that owners of iPhones released in 2019 and later must install iOS 26 to remain protected against vulnerabilities. Especialistas highlight that remaining on old versions exposes devices to greater risks.
The measure reinforces Apple’s strategy of prioritizing the most recent version of the operating system for full security patch deliveries. Usuários who still resist the upgrade now face the immediate need to migrate.
Models affected by the change
The iPhones XS, XS Max and XR, launched in 2018, are the only ones that still receive updates in the iOS 18 line.
All later models, from iPhone 11 onwards, lost access to iOS 18 security fixes after the release of version 18.7.3. Apple adopted this restriction to concentrate resources on the current operating system.
Chronology of recent updates
Apple continued the pattern of offering parallel updates between versions for a few months after the annual release. In September 2025, iOS 26 arrived alongside new iPhones, while iOS 18 continued to receive temporary support.
Versions iOS 18.7, 18.7.1 and 18.7.2 were made available for devices compatible with iOS 26. As of December 12, 2025, however, iOS 18.7.3 was restricted to the three older models.
This change caught some users by surprise, especially those who prefer to wait for stability before updating. The company did not previously communicate the specific limitation of this version.
Importance of security patches
Security updates fix flaws that can be exploited by cyberattacks. iOS 26.2, released in December 2025, included important patches that are not available in earlier versions of iOS 18 for recent models.
Remaining without these protections increases exposure to known threats. Analistas point out that Apple’s decision aims to encourage the rapid adoption of more advanced security features only present in iOS 26.
New iOS 26 Features
iOS 26 introduced the Liquid Glass design, a translucent material that dynamically adapts to the displayed content. Esse visual element appears in navigation bars, menus and icons, providing greater fluidity to the interface.
The update also expanded artificial intelligence functions on supported devices. Modelos from iPhone 15 Pro leverage advanced local processing capabilities.
List of iPhones compatible with iOS 26
Apple maintains broad support for recent devices. Confira models that receive iOS 26:
- iPhone 16, 16Plus, 16Pro, 16Pro Max and 16e
- iPhone 15, 15 Plus, 15 Pro and 15 Pro Max
- iPhone 14, 14 Plus, 14 Pro and 14 Pro Max
- iPhone 13, 13 mini, 13 Pro and 13 Pro Max
- iPhone 12, 12 mini, 12 Pro and 12 Pro Max
- iPhone 11, 11 Pro and 11 Pro Max
- iPhone SE (2nd generation) and SE (3rd generation)
These devices continue to receive full updates. Older Modelos remain limited to iOS 18.
How to perform the update
Go to Ajustes > Geral > Atualização from Software to check availability. The system automatically indicates the latest version compatible with the device.
It is recommended to connect to a stable Wi-Fi network and keep battery above 50% or connect to charger. The process lasts an average of 30 to 60 minutes, depending on the model and connection.
Reasons for upgrade resistance
Some users prefer to stay on previous versions due to proven stability. Alguns report difficulties adapting to the Liquid Glass design, especially people with low vision.
Others wait for initial bug fixes before migrating. However, the suspension of security patches in iOS 18 changes the balance between comfort and protection.
Benefits of immediate migration
iOS 26 offers performance improvements on supported hardware. Recursos like battery optimization and deeper integration with Apple ecosystem are only available in this version.
The update also ensures future compatibility with new applications. Desenvolvedores already prioritizes support for the latest operating system.
Expectations for upcoming versions
Apple is expected to release iOS 26.3 in the coming weeks with new fixes. A possible iOS 18.7.4 will likely be restricted to the XS, XS Max and XR models.
Analysts believe that the company will maintain the pattern of limiting parallel updates to a few months. Essa practice encourages rapid adoption of annual versions.
Typical support duration Apple
The company offers updates for approximately seven to eight years after each model is released. The 2018 iPhones XS, XS Max and XR reach this limit in 2026.
Newer devices continue to have a comfortable margin of support. The policy guarantees longevity greater than the market average Android.
Recommendations for old users
iPhone XS, XS Max, or XR owners should install iOS 18.7.3 immediately. Essa version includes the latest fixes available for these devices.
For those who have models compatible with iOS 26, migration is the safest option. The update protects against actively exploited vulnerabilities.
Global impact of the decision
Hundreds of millions of active iPhones were still running iOS 18 in early 2026. The measure accelerates the transition to the latest system on a global scale.
Users in different regions receive the same update policy. Apple applies restrictions uniformly across all markets.
The decision reinforces the company’s commitment to ongoing security. At the same time, it pressures owners of mid-range devices to consider upgrading their hardware in the medium term.