Apple has just released iOS 18.4, and it brings some noteworthy features to the iPhone experience. As part of the company’s ongoing push into AI and user-focused enhancements, this update continues the evolution of iOS 18 with smarter notifications, better AI support, and accessibility improvements.

📲 Priority Notifications for What Matters Most

One of the headline features in iOS 18.4 is Priority Notifications. These are designed to intelligently surface time-sensitive or high-importance alerts, so users don’t miss what matters. Whether it's a critical email, a calendar event, or a reminder, iOS will now prioritize it more effectively in your lock screen and notification center.

🧠 Apple Intelligence Expands (But Still US-Only)

Apple is also continuing the slow rollout of its AI platform, Apple Intelligence. With iOS 18.4, the company has expanded access to more devices—although it’s still limited to users in the United States. If you're using an iPhone 15 Pro or Pro Max, you're among the lucky few who can tap into smarter Siri responses, AI-generated summaries, and on-device processing enhancements.

🎙️ Accessibility and Siri Improvements

Siri is getting smarter and more responsive thanks to iOS 18.4. The voice assistant can now handle more complex queries and respond more naturally. Accessibility also gets a boost with refined voice control and improved real-time captions for FaceTime.

📦 Additional Fixes and Enhancements

• Battery management has been optimized, especially for newer iPhone models.
• Stability improvements for third-party apps using Bluetooth and background location services.
• Bug fix addressing a rare issue where Face ID would randomly stop responding.
• Updated emojis and regional calendar formats.

If you haven’t already received the update, head to Settings > General > Software Update to grab it. The download size varies by device but generally weighs in around 1.5GB.

As always, it’s a good idea to back up your device before updating. While this rollout is smooth for most, it never hurts to be safe—especially when dealing with new AI-related features.