How do I update to iOS 18?

Are you a registered developer with Apple? If yes, contact the support site for developers.

Otherwise, Apple invites some users to test the new software. If you did not receive an invitation, I'm sorry but you won't have access to the new software for another 3-4 months when it is released to the public.

Khan_sahab5087 wrote:

I did not get ios 18 in my iPhone 11

[Re-Titled by Moderator]

As iOS 18 has not been released, that would be expected.

Check again in 3-4 months.