One of the reason why I prefer iPhones and iPads over Android smartphones and tablets is long support from Apple. I remember my phablet from Huawei, which came with Android 5 and I have never seen any Android updates. Later I had smartphone from Samsung, which came with Android 7 and later I got update to Android 8 – in times when Android 9 was already available! And yea, I haven’t seen any Android updates since then. Recently, Apple released new iOS version for older iOS devices which does not support iOS 12. It’s amazing that Apple support such old hardware.
This update addresses an issue that could impact GPS location performance and lead to the system date and time being incorrect. Apple says that starting in November 2019, some iPhone and iPad models introduced in 2012 and earlier will require this update to maintain an accurate GPS location due to the GPS time rollover issue.
Your older iOS device won’t be affected until November 3, 2019. If you don’t update your iOS device, your device won’t be able to maintain an accurate GPS position, and features that rely on correct date and time, like syncing with iCloud and fetching email, might not work.
You can update your device by going to Settings -> General -> Software Update.
Apple updated iOS 10 and iOS 9:
iOS 10 was updated to version 10.3.6 and it’s compatible with cellular version of the iPad 4 and the iPhone 5.
IOS 9 was udated to version 9.3.6 and it’s compatible with iPhone 4s and with cellular models of the original iPad mini, the iPad 2, and the iPad 3.