Apple today provided developers and public beta testers who have an iPhone 11 with a new beta of iOS 26. Apple did not seed the iPhone 11 version

Apple has confirmed iOS 26’s public launch this fall, following the release of beta 4 to developers and testers with major UI and Apple Intelligence updates.

Looking at the home screens, the primary difference you'll find is that in iOS 26 the background of the dock and the search option that sits in between the dock and the home screen icons are more transparent and have a sheen to the edges, whereas in iOS 18, these are slightly darker.