What’s New in iOS 15.3 RC [VIDEO]

Apple on Thursday released iOS 15.2 Release Candidate (RC) for developers and public beta testers, along with RC builds for macOS 12.2, iPadOS 15.3, watchOS 8.4, and tvOS 15.3.

A Release Candidate build is the final version of an update that is all but ready for public release — unless Apple finds a problem that needs to be fixed. If an issue is found, Apple rolls out another RC build (like it did with iOS 15.2 last month) to remedy it.

In a YouTube video published earlier today, zollotech breaks down what’s new in iOS 15.3 RC.

YouTube video

iOS 15.3 RC does not bring a modem update for users who are currently on iOS 15.3 beta 2, but those updating from iOS 15.2.1 will get one.

The release notes for iOS 15.3 RC have not really been populated, and simply say the update “includes bug fixes and security updates.” Take a look at some of the most important things zollotech found to be new in the update:

  • Wording changes in first-time iPhone setup.
  • A bug that caused Apple Music to use unusually high amounts of CPU and battery when streaming audio has likely been fixed.
  • The update also seems to fix cellular connectivity issues.

An IndexedDB vulnerability in Safari that can leak users’ browsing activity to visited websites has also presumably been patched in iOS 15.3 RC. The YouTuber theorized that a fix for this issue, which Apple engineers were already hard at work on, could be the reason why iOS 15.3 is being released this early and focuses mainly on security updates instead of new features.

The update also fixed a bug for zollotech that displays incorrect storage and has been plaguing iPhones since Apple started rolling out iOS 15, but there have been reports from users who continue to experience it.

Battery life on iOS 15.3 appears to be more stable by consensus as compared to older iOS versions, and performance is notably smoother as well. Benchmarks tell a similar story, with numbers improving over those from iOS 15.3 beta builds.

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