Apple Stops Signing iOS 18.2.1, Preventing Downgrading
Apple today stopped signing iOS 18.2.1, which means that iPhone users who have upgraded to iOS 18.3 can no longer downgrade to the prior version of iOS 18. Apple released iOS 18.3 a week ago.
When new versions of iOS are released, Apple stops signing the prior version after a week or two. An update that is not signed is not able to be installed on an iPhone because there is a server-side software verification check. As of right now, iPhone models compatible with iOS 18 are only eligible to download and run iOS 18.3.
By preventing customers from downgrading to older versions of iOS, Apple ensures that devices are kept up to date with the newest security improvements.
Apple's iOS 18.3 update included a handful of Apple Intelligence updates and more than 20 security updates. One of those fixes addressed a vulnerability that may have been actively exploited on some devices, demonstrating why it is important to keep iOS software up to date.
Popular Stories
Apple's annual Back to School promotion is now live in select countries in Asia, including China, India, Malaysia, the Philippines, Singapore, Taiwan, Thailand, and Vietnam.
The offer provides college students and educational staff with a free item with the purchase of an eligible Mac or iPad model. The exact offer varies by country, with options including a pack of four AirTags, AirPods 4,...
Carrier-financed iPhones purchased from Apple will soon be locked to the carrier, ending a workaround customers used to purchase an unlocked iPhone on a payment plan.
Until the rule change, buying an iPhone from Apple and opting for financing through Verizon or T-Mobile meant you would get an iPhone not locked to either carrier's network. That's no longer the case, and now iPhones financed...
Apple's stores will be rolling out Back to School marketing materials this week, according to Bloomberg's Mark Gurman. This suggests that the offer will begin in the U.S. in the next few days.
Last year, college students and educational staff could receive a free accessory like AirPods 4 or an Apple Pencil Pro with the purchase of a qualifying Mac or iPad model. The Back to School offer is in...
