What’s New in iOS 15.3? Lots of Bug Fixes

What's New in iOS 15.3 Headers

Gadgetren – iOS is an operating system made by Apple that is presented on the iPhone with various features to support the daily activities of its users.

The first version of iOS itself was present in 2007 when the first generation iPhone appeared. In this version, there was no App Store application store, so iPhone users at that time could only enjoy default applications such as browsers, calculators, and music players.

Of course, iOS is growing from time to time to provide improved features, interfaces, application support, to security. Now iOS itself has entered version 15.3 which presents something new for iPhone users.

Compared to the previous version which brought several features, iOS 15.3 provides several security improvements and bug fixes for the iPhone to be used comfortably.

What’s New in iOS 15.3?

Bug Fixes on Safari Browser

On Safari on iOS 15 there is an issue with Apple’s WebKit implementation of the IndexedDB JavaScript API. Sites using IndexedDB can access the IndexedDB database names generated by other sites during the same browsing session.

Basically it allows malicious sites to spy on other sites that Safari Browser users visit. This Safari Browser bug was also patched via the iOS 15.3 update so that the vulnerability can no longer be used to collect browsing history and recent identities of users.

HomeKit Camera Thumbnail Repair

Previously the HomeKit Secure Video Camera added to the Home app had a thumbnail showing a snapshot of the most recent footage. Usually these thumbnails are automatically updated or refreshed periodically.

But in recent times, thumbnails failed to update or reload for some iPhone users causing the experience not to be as optimal as possible. This bug or problem has also been fixed in the iOS 15.3 update.

IOMobileFrameBuffer bug fix

Apple reports that iOS 15.3 fixed a memory corruption bug that allowed malicious apps to execute arbitrary code with kernel privileges. Meanwhile, the memory corruption issue was addressed with improved input validation.

According to Apple, this bug may have been actively exploited so hackers used it for evil. Some iPhone users have even felt the effects.

Other Bug Fixes

The upgrade of the iPhone operating system to iOS 15.3 has also addressed several other bugs and vulnerabilities such as ColorSync, Crash Reporter, iCloud, Kernel, I/O Model, WebKit, and WebKit Storage.

If you refer to the explanation above, it can be seen that the iOS 15.3 update is more towards fixing bugs than bringing up new features. Meanwhile, the iOS 15.3 operating system upgrade itself is compatible with several iPhones consisting of:

  • iPhone 6s
  • iPhone 6s Plus
  • iPhone SE
  • iPhone 7
  • iPhone 7 Plus
  • iPhone 8
  • iPhone 8 Plus
  • iPhone X
  • iPhone XS
  • iPhone XS Max
  • iPhone XR
  • iPhone 11
  • iPhone 11 Pro
  • iPhone 11 Pro Max
  • iPhone SE 2
  • iPhone 12 mini
  • iPhone 12
  • iPhone 12 Pro
  • iPhone 12 Pro Max
  • iPhone 13 mini
  • iPhone 13
  • iPhone 13 Pro
  • iPhone 13 Pro Max