Apple surprised many by releasing the latest iPhone software update early: having teased that iOS 18.4 would be released in early April, the general release dropped on March 31. Here’s all you need to know.

Apple this week began testing iOS 18.6, according to our website's visitor logs, which have been a reliable indicator of upcoming iOS

Apple has just pushed out iOS 18.4 and iPadOS 18.4, marking the fourth major update to its iOS 18 lineup. The new update comes roughly two months after the previous 18.3 release and brings a handful of new features along with performance tweaks and bug fixes.

A new report says that three iPhones won’t be compatible with the upcoming software due to be announced in June.

According to a private and anonymous X account with an impressive track record of accurate predictions (via 9to5Mac ), three iPhones that launched in 2018 and have had active software support until now will not be able to run iOS 19: the iPhone XR, XS, and XS Max.

We’re just over two months away from Apple announcing iOS 19 at WWDC25. A new rumor this week says that iOS 19 will drop support for three iPhone models: iPhone XR, iPhone XS, and iPhone XS Max. All three of those phones were released in September 2018.