When is the next update for iOS 18 coming?

You are not asking Apple here. Apple will neither see nor respond to your question in this user-to-user setting.

When is the next update?

Next update for iOS 18? Only Apple knows and they are not telling. You will know when you see the update available on your phone.

Next major iOS update to iOS 26? September / October

"ios up to date on 18.5: iOS is up to date on 18.5"

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Having issues updating? If so, refer to the following...

Troubleshooting Updating an iPhone 14 Plus:

A. Use a Computer:

It appears the iPhone update is stalled. So, Force Restart your iPhone > Plug your iPhone in to a computer > and then update using the computer. Use my User Tip:  Update your iPhone Using a Computer - User Tip

IMPORTANT: If you have an option to update, however, then be certain you backup your iPhone first. That way, you will have something to restore your iPhone from should anything go wrong with the update.

B. Fixing a Boot Loop:

Your iPhone can at times be stuck in a Boot Loop. This typically occurs when you go abuut installing an update, and it stalled while in the process. Use my User Tip: How to Fix an iPhone in a Boot Loop - User Tip

Hello!

What is your question?

About iOS 18 Updates - Apple Support

Since iOS 18.5 is the latest release of iOS 18, what is the question?

Help_me_3678 wrote:

When is the next update

This fall is the new iOS 26 update. When there will be any smaller updates to iOS 18, I couldn’t say for sure.

The next iOS 18.X update will be released when it is ready. The new IOS 26 is set for sometime in the fall 2025.