Apple updates iOS 12 to extend iMessage and FaceTime support on older devices

Apple has released iOS 12.5.8 for a small group of older devices, to make sure they can continue using FaceTime and iMessage.
OS X Daily

Beta 3 of macOS Tahoe 26.3 & iOS 26.3 Released for Testing

Apple has moved on to the third beta version of iOS 26.3, iPadOS 26.3, and macOS Tahoe 26.3, which are now available for beta ...

Apple’s Crucial iPhone Update Decision Means Hundreds Of Millions Must Update Now

If your iPhone is one of the ones listed, you need to make sure you’re on the latest iOS software as soon as you can.