Clarification on the planned removal of UIDesignRequiresCompatibility

Dear Apple Developer Support,

I am developing and maintaining an iOS application.

In iOS 26, we understand that setting UIDesignRequiresCompatibility to true in the Info.plist file allows an app to opt out of the Liquid Glass design.

However, we also understand that during WWDC25 Platforms State of the Union, Apple stated:

"We intend this option to be removed in the next major release."

We would appreciate clarification on the following points.

Questions

Should the phrase "next major release" be interpreted as iOS 27?

Is it currently Apple's plan to make UIDesignRequiresCompatibility unavailable or remove it in iOS 27? Or is the statement above only an intended direction, with the actual removal schedule still subject to change? If there is any publicly shareable information regarding the future availability or deprecation timeline of UIDesignRequiresCompatibility, could you please provide it?

Background

We develop and maintain a business application that contains a large number of custom screens and UI components.

Adapting the entire application to the Liquid Glass design system will require significant design review, implementation effort, and testing. As a result, the future availability of UIDesignRequiresCompatibility is a critical factor in our development planning and resource allocation.

For this reason, we would greatly appreciate any guidance you can provide regarding Apple's current plans for this compatibility option.

Thank you for your time and assistance.

Best regards, Toshiyuki

In some cases, liquid glass creates problems because buttons take a much larger space.

Here is an example with navigation items.

Prior LiquidGlass (UIDesignRequiresCompatibility = true)

Everything fits without problem.

With LiquidGlass (UIDesignRequiresCompatibility = false)

Text is clipped as there is no more room for it as buttons are much wider.

Adapting a lot of screens may require significant design changes.

In this case, there is an option (not optimal, but working), by adapting the font size (https://stackoverflow.com/questions/62589078/automatically-adjust-navigation-item-title-font-size-to-fit).

        let title = NSLocalizedString("xxx.xxx.xxx.title", tableName: "Main", comment: "") // Retrieve the original title
        let navbarTitle = UILabel()
            navbarTitle.text = title
            navbarTitle.minimumScaleFactor = 0.5
            navbarTitle.adjustsFontSizeToFitWidth = true
            navigationItem.titleView = navbarTitle

Thank you for sharing your experience with Liquid Glass.

I understand the UI issues you described, and they are certainly important for developers planning migration work.

However, my primary question is not about the migration effort itself, but about Apple's current plan for UIDesignRequiresCompatibility.

Specifically, I would like clarification from Apple on whether the statement

"We intend this option(UIDesignRequiresCompatibility)to be removed in the next major release."

still reflects Apple's current plan, and whether "the next major release" should be interpreted as iOS 27.

This information is important for planning the migration schedule of our application.

In fact, it is very clear in Xcode documentation:

Warning Temporarily use this key while reviewing and refining your app’s UI for the design in the latest SDKs.

The system ignores this key when you build for iOS 27 or later, iPadOS 27 or later, Mac Catalyst 27 or later, macOS 27 or later, or tvOS 27 or later.

Clarification on the planned removal of UIDesignRequiresCompatibility
 
 
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