Apple takes unexpected security step: Patches released for all devices, including older versions
Apple released new security-focused software packages for devices running older operating systems alongside the latest iOS 27 version. Here are the updates and adjustments released for other versions.
Apple released a comprehensive security update package covering nearly all devices across its ecosystem. For devices running the current operating system, iOS 27.2.1 began rolling out. Apple also simultaneously released the iOS 26.7.3 and iOS 18.7.12 updates for older versions, targeting users who have not yet upgraded to iOS 27 or whose hardware does not support this version. When it comes to security, Apple addresses both old and new devices.
The software deployment was not limited to smartphones. The company simultaneously released similar security patches for its other operating systems: macOS, watchOS, tvOS, and visionOS.

Critical patches also rolled out for older versions
In its release notes, Apple included its standard statement: "This update provides bug fixes and security updates for your iPhone." On the company's official security updates page, a detailed list of addressed vulnerabilities was not immediately available at the time of release. This list is expected to be updated shortly to provide a breakdown of the resolved vulnerabilities.
The released updates and the main systems they cover are listed below:
| Operating System | New Security Version | Scope |
|---|---|---|
| iOS (Current) | iOS 27.2.1 | Latest supported iPhone models |
| iOS (Previous generation) | iOS 26.7.3 | Devices that have not upgraded to or do not support iOS 27 |
| iOS (Older generation) | iOS 18.7.12 | iPhone models with older hardware |
| Other Platforms | Security Patches | macOS, watchOS, tvOS, visionOS |
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This article was translated from Turkish. Read the original article in Turkish.