iOS 18.4.1 Released - What's New?

Summary

In this video, Brandon discusses the release of iOS 18.4.1, a minor update addressing bug fixes and security vulnerabilities. Notably, the update resolves issues with wireless CarPlay connections and patches two actively exploited security flaws related to Core Audio and RPAC. Brandon emphasizes that while there are no significant feature changes or performance improvements, the update is crucial for maintaining device security. He also mentions the upcoming iOS 18.5 and the first beta of iOS 19, expected in the coming months. Users on older versions should definitely update to iOS 18.4.1 to ensure their device remains secure and up-to-date.

Takeaways

• 😀 iOS 18.4.1 was released shortly after iOS 18.4, with updates for iPhone, iPad, Mac, tvOS, HomePod, and Vision OS.
• 😀 The update weighs around 553.6MB for iPhone 16, with the build number 22E252.
• 😀 iOS 18.4.1 mainly focuses on bug fixes and security patches rather than new features.
• 😀 The key bug fix addresses a rare issue preventing wireless CarPlay connection in certain vehicles.
• 😀 Other CarPlay-related issues, like problems with wired CarPlay, were not addressed in this update.
• 😀 The update includes two critical security patches: one for Core Audio (memory corruption) and another for RPAC (pointer authentication).
• 😀 Both security issues were actively exploited in sophisticated attacks, making it important to update.
• 😀 Performance on iOS 18.4.1 is similar to iOS 18.4, with no major improvements or changes.
• 😀 Battery life impact is expected to be minimal, though bug fixes may improve overall device performance.
• 😀 The next expected public release is iOS 18.5, which should arrive in early May, followed by iOS 19 beta in June.

Q & A

What is the size of the iOS 18.4.1 update on the iPhone 16?

The iOS 18.4.1 update is 553.6 MB on the iPhone 16, coming from iOS 18.4.

What is the build number for iOS 18.4.1?

The build number for iOS 18.4.1 is 22E252.

Are there any changes to the modem firmware in iOS 18.4.1?

No, the modem firmware remains the same at 1.54.03 for the iPhone 16 series in iOS 18.4.1.

What is the main bug fix in iOS 18.4.1?

The main bug fix in iOS 18.4.1 addresses a rare issue that prevents wireless CarPlay connection in certain vehicles.

Does iOS 18.4.1 address all CarPlay-related issues?

No, while the update fixes wireless CarPlay issues, other CarPlay problems, such as wired connection issues and CarPlay not appearing on the dash, have not been explicitly mentioned as fixed.

What security vulnerabilities are patched in iOS 18.4.1?

iOS 18.4.1 patches two security vulnerabilities: a Core Audio vulnerability that could lead to code execution and an RPAC vulnerability that could allow an attacker to bypass pointer authentication.

Were these security vulnerabilities actively exploited?

Yes, both vulnerabilities were actively exploited in sophisticated attacks targeting specific individuals.

Should users update to iOS 18.4.1 if they are on an older iOS version?

Yes, users on older iOS versions should update to iOS 18.4.1 to benefit from bug fixes and important security patches.

How does the performance of iOS 18.4.1 compare to iOS 18.4?

The performance of iOS 18.4.1 is expected to be similar to iOS 18.4, with no major changes in performance or battery life.

What update is expected after iOS 18.4.1, and when will it be released?

The next update expected after iOS 18.4.1 is iOS 18.5, which should be released in the first half of May.