As it generally does following the release of a new version of iOS, Apple this evening has stopped signing iOS 9.2.1 for all devices. This change comes two weeks after Apple released iOS 9.3 to the public and less than a week after the release of iOS 9.3.1, which squashed a handful of bugs that plagued the initial version.
Apple today has released a new version of iOS 9.2.1 that will remedy bricked iPhones affected by ‘error 53‘ after servicing hardware with Touch ID (via TechCrunch). iOS 9.2.1 is the same version number released last month, but the updated build from 13D15 to 13D20 reflects the resolution for bricked iPhones.
Three days ago Apple released an iOS 9.2.1 update with seemingly arbitrary ‘security updates and bug fixes’ listed in the release notes. As we’ve seen time and time again with these type of software updates, most often these small updates seem to go ignored by the general public. We stress how important it is to keep your device up to date, even with small security updates like this.
As is customary after Apple releases a security update version of iOS, the firms and people that discovered the vulnerabilities are coming out explaining how and why these security updates matter. Apple has already included a breakdown of what security issues were resolved in iOS 9.2.1, but it’s still nice to get a further detailed look into what made the vulnerabilities possible in the first place.
SkyCure, a company helping in threat defense in EMM and MDM solutions, released a blog post this week detailing their discovery while noting that Apple had finally resolved it.
There’s a new iOS 9.2.1 update within the Settings app awaiting all iPhone, iPad, and iPod touch users today. Apple released the first developer beta version of the software update in mid-December after shipping iOS 9.2 earlier in the month. The second iOS 9.2 beta was later released at the start of January. Apple has since started testing iOS 9.3 with developers and public beta testers.
As the version number suggests, iOS 9.2.1 so far hasn’t included any major feature changes or enhancements, and the official release notes only reference bug fixes, security improvements, and an MDM server issue fix.
Apple has released the first iOS 9.2.1 beta to developers for testing on iPhone, iPad, and iPod touch. The new software version features build number 13D11 which compares to last week’s iOS 9.2 release at 13C75. The update is available for registered developers currently through the iOS Dev Center.