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Apple today stopped signing iOS 26.2, which means that iPhone users who have updated to iOS 26.2.1 are no longer able to downgrade to the earlier version of iOS. Apple released iOS 26.2.1 last week with support for the AirTags 2.

iOS-26.2.1-Feature.jpg

Software "signing" means that it has passed the server-side verification check that Apple performs when a user downloads a new version of iOS on an iPhone. An update can't be installed unless it passes the verification check.

Apple does not show users earlier versions of iOS once an upgrade has come out, but when software is still signed, it is possible to downgrade using the macOS Finder on a Mac or the Apple Devices app on a Windows PC. Until today, users would have been able to downgrade from iOS 26.2.1 to iOS 26.2 if desired for some reason.

Unsigning software prevents Apple customers from installing outdated, less secure versions of iOS, and Apple typically stops signing an update a week or so after new software comes out.

Apple has also stopped signing several older versions of iOS provided for devices unable to update to iOS 26, including iOS 12.5.7, iOS 15.8.5, iOS 16.7.12, and iOS 18.7.3. iOS 12.5.8, iOS 15.8.6, and iOS 18.7.4 were released last week, while an updated version of iOS 16 came out today.

Article Link: Apple Stops Signing iOS 26.2, Blocking Downgrades From iOS 26.2.1
 
  • Wow
Reactions: Z-4195
I've been relatively happy with 26 so far, but 26.2.1 has broken audio in a way that wasn't broken in 26.0-26.2.
 
Installed 26.2.1 on my 256gb 14 PM. Battery health 97%. I’m sure there will be the odd bug but everything seems to work seamlessly so far and CarPlay is a massive improvement at least in my Toyota’s aftermarket touchscreen head deck. Waited months to update my phone based purely on all the negative opinions which had me thinking I’d need to switch to Android (I’ll rain check for the moment). Haven’t tried Mac OS 26 yet, but have to say I’m not entirely sold on TV OS 26. It does work but the OS Home Screen icons don’t line up properly on my TV and it refuses to connect to my EarPods Pro 2’s despite trying all the tricks.
 
Huge Pheewwww…

I managed to upgrade all my devices, all of them powered by A15 and M2 SoC (same gen chip) before they stopped signing it.

Why is such a relief? Because iOS/iPadOS 26.2 was extremely good regarding battery life on those devices. See the iPhone 13 here:

IMG_0105.jpeg


And I can confirm it: better battery life on 26.2 than on the latest iOS 18 releases… on A15/M2 devices.

Now with 26.2.1 this seems to have returned to the usual drain so I am sticking with 26.2 until a new release offers good battery life. Hopefully 26.3…
 
Huge Pheewwww…

I managed to upgrade all my devices, all of them powered by A15 and M2 SoC (same gen chip) before they stopped signing it.

Why is such a relief? Because iOS/iPadOS 26.2 was extremely good regarding battery life on those devices. See the iPhone 13 here:

View attachment 2601477

And I can confirm it: better battery life on 26.2 than on the latest iOS 18 releases… on A15/M2 devices.

Now with 26.2.1 this seems to have returned to the usual drain so I am sticking with 26.2 until a new release offers good battery life. Hopefully 26.3…
I don’t know, for me this looks like a placebo. Especially these small x.x.1 updates aren’t changing something on the OS that drastically that it impacts battery life so heavily.
26.2.1 was a security fix update as usual and it brought the support for the new AirTags, not more.
 
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