Don't Want to Upgrade to iOS 26? Here's How to Stay on iOS 18 [Update: Now Unavailable]

Since the beginning of December, Apple has been pushing iPhone users who opted to stay on iOS 18 to install iOS 26 instead.

iOS 26 Mandatory for Newer iPhones: Apple Disables iOS 18 Update Option

While iOS 18.7.3 is available with important security improvements, only older iPhones will receive it. Owners of newer devices must use iOS 26.2.

Is iOS 26.2 out yet? Why Apple recommends iOS 26 update for AI, security

Are you still running iOS 18? Apple recommends updating to the newest system. Here's when iPhone users can expect iOS 26.2 to drop and how to do it.
Forbes

iOS 26—Why You Need To Upgrade Your iPhone From iOS 18 And When

Forbes contributors publish independent expert analyses and insights. Kate O’Flaherty is a cybersecurity and privacy journalist. Apple’s iOS 26.1 has been out for a few weeks now, alongside an update ...