Apple has taken another step toward the official release of iOS 18.4 by seeding the third developer beta of the update to testers late on March 10, 2025.

This latest beta, identified by build number 22E5222f, arrives just one week after the release of iOS 18.4 Beta 2 and continues to refine the features introduced in earlier iterations.

Alongside iOS 18.4 Beta 3, Apple has also rolled out corresponding third betas for iPadOS 18.4, macOS Sequoia 15.4, tvOS 18.4, visionOS 2.4, and watchOS 11.4, signaling a synchronized push across its ecosystem ahead of the anticipated public launch in April.

Here’s a detailed look at what’s new in iOS 18.4 Beta 3, what has carried over from previous betas, and what iPhone users can expect as Apple fine-tunes this update.

What’s New in iOS 18.4 Beta 3?

While comprehensive release notes for iOS 18.4 Beta 3 are still trickling in as developers dig into the update, early reports suggest this release focuses on stability, bug fixes, and incremental improvements to features introduced earlier in the beta cycle.

Based on posts on X and initial developer feedback, no major new features have been spotlighted yet, but refinements to existing additions are likely.

Apple typically uses later betas like this one to polish performance and address issues reported by testers, such as the critical boot loop bug that affected iPhone 12 models in Beta 1 (since resolved by Beta 2).

Key areas of focus in Beta 3 are expected to include:

Enhanced Stability: Addressing lingering bugs from Beta 2, particularly for devices like the iPhone 12 series and the newly supported iPhone 16e.
Apple Intelligence Optimization: Further tuning of AI-driven features like Priority Notifications and Visual Intelligence, ensuring smoother integration across compatible devices.
Performance Tweaks: Improvements to system responsiveness and battery efficiency, common priorities in mid-cycle betas.

Developers and public beta testers are encouraged to explore the update and report findings, with outlets like 9to5Mac promising hands-on coverage as changes are uncovered.

Key Features Introduced in iOS 18.4 So Far

iOS 18.4 is shaping up to be a significant update, building on the foundation of iOS 18 with a mix of Apple Intelligence enhancements, quality-of-life improvements, and new user-facing features. Here’s a recap of what’s been introduced in the beta cycle up to this point:

1. Priority Notifications

Powered by Apple Intelligence, this feature highlights important notifications by displaying them prominently on the Lock Screen. Introduced in Beta 1, Beta 2 added the ability to disable it on a per-app basis, giving users more control. Beta 3 is expected to refine this further, ensuring the AI accurately identifies what matters most to each user.

2. Visual Intelligence Expands

First debuted with the iPhone 16 series, Visual Intelligence a visual search tool akin to Google Lens—arrived for iPhone 15 Pro models in Beta 2. It can now be triggered via the Action button, Control Center, or Shortcuts on supported devices.

This feature uses on-device AI to analyze images and provide contextual information, such as identifying objects or text in photos. Beta 3 may improve its accuracy and responsiveness.

3. New Emoji Characters

Beta 2 brought seven new emoji, including an exhausted face, marking the first emoji update in a year. These additions, part of the Unicode standard, are expected to remain unchanged in Beta 3 but will delight users looking for fresh ways to express themselves when iOS 18.4 goes public.

4. Apple Vision Pro App

A standalone app for browsing spatial content from the Apple Vision Pro debuted in Beta 2. This addition caters to Vision Pro owners, offering a dedicated hub on their iPhones for managing and exploring immersive media.

5. Ambient Music in Control Center

Introduced in Beta 1, new toggles for ambient music (Chill, Productivity, Sleep, and Wellbeing) allow users to play soothing tracks directly from Control Center. This feature enhances the iPhone’s utility as a relaxation or focus tool and is likely being optimized in Beta 3.

6. App Store Enhancements

Beta 2 introduced AI-powered Review Summaries, condensing user reviews into concise paragraphs for easier app evaluation, alongside a pause/resume button for downloads. These changes streamline the App Store experience and are expected to see minor refinements in this beta.

7. CarPlay and Maps Updates

For CarPlay users with large dashboard displays, iOS 18.4 now shows an extra row of app icons. Apple Maps also gained EV routing improvements and a Preferred Language option for directions in earlier betas, both of which should benefit from stability tweaks in Beta 3.

Availability and Installation

iOS 18.4 Beta 3 is currently available to registered developers through the Software Update section of the Settings app on enrolled iPhones (Settings > General > Software Update).

The public beta, typically released within a day or two of the developer version, is expected to follow shortly potentially by March 11 or 12, 2025 allowing non-developers in Apple’s Beta Software Program to test it as well.

Notably, Beta 2 resolved compatibility issues for iPhone 12 models and added support for the iPhone 16e, ensuring a broader range of devices can now participate in testing.

However, beta software carries risks, including potential bugs and performance hiccups, so users are advised to back up their devices before installing.

The Road to April Release

Apple has confirmed that iOS 18.4 will launch to the general public in April 2025, alongside iPadOS 18.4 and macOS Sequoia 15.4.

This timeline aligns with the debut of Apple News+ Food, a new section for subscribers featuring recipes and culinary content, announced in a recent press release.

The update will also expand Apple Intelligence language support to include French, German, Italian, Portuguese (Brazil), Spanish, Japanese, Korean, Chinese (Simplified), and localized English for Singapore and India.

While the much-anticipated Siri overhaul with personal context and in-app actions hasn’t appeared in iOS 18.4 betas yet (likely reserved for iOS 18.5), the current update still offers a robust set of features.

Beta 3’s release suggests Apple is on track, with one or two more betas likely before a release candidate emerges in late March or early April.

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