After a delayed arrival of the first beta that didn’t arrive until February 16, more than three weeks after iOS 16.3 arrived, it appears that Apple is ready to release the latest version of iOS 16 to the masses. There are several new features in the latest update, along with standard bug fixes and security updates. Here’s everything you can expect when it arrives on your iPhone, likely on Monday, March 27, or Tuesday, March 28.

Update 3/21/23: The release candidate of iOS 16.4 has been released to developers. The final public release will almost certainly come next week.

iOS 16.4: New features

Here are some of the significant changes and additions in iOS 16.4. We will continue to update this section as more changes are discovered.

Apple ID for beta access: Apple is cracking down on loading beta versions through third-party sites and profiles, requiring verification of an Apple ID enrolled in either the public or developer beta program. With iOS 16.4, you’ll be able to designate an Apple ID with beta access that is separate from the one used for the rest of the device’s features.

New emoji: This release adds the emoji that are part of the Unicode 15.0 standard. They include a shaking face (side to side, like “no”), several heart colors including a pink heart that was strangely absent until now, left and right pushing hands, several new animals (moose, goose, jellyfish), and a few food items and musical instruments.

Web push notifications: This release adds support for web push notifications. Web apps saved to the home screen can send system notifications through the Push API, Notifications API, and Service Workers by using the standard HTML5 Web Push API. Websites have to ask for permission just as apps do, and it has to be in response to a user action (like tapping a “subscribe” button or the like).

Home architecture upgrade: The Home architecture upgrade that was pulled from the iOS 16.2 release is back in iOS 16.4. This is separate from the upgraded Home app, which has remained.

Voice Isolation for cellular calls: A new setting in the Phone app will prioritize your voice and block out ambient noise around you while on calls.

Apple Music Classical: Apple announced a new app dedicated to classical music that is available to preorder in the App Store, but it won’t officially arrive until March 28. It doesn’t require iOS 16.4, but it seems likely that the two releases will coincide.

New Podcasts app: The Podcasts app across iPhone, iPad, and CarPlay improves the Up Next queue and adds features like episode filtering and the ability to browse by season.

Widgets: A new Wallet widget to easily track orders. 

Books page-turning animation: The page-turning animation, where the corner of the page folds up, is back in Apple Books after being removed in the first iOS 16 release.

Mastadon support: Automatic previews for links in Messages as with Twitter.

New beta requirements: If your device is registered as a beta tester, you can open Settings > General > Software Updates and a new menu allows you to select whether you want no beta updates, Developer Beta updates (if applicable), or Public Beta updates. Also, developers will now need an authorized developer account to install updates rather than just a profile.

If you want to learn more about iOS 16 read about the new features (and problems) that have arrived in iOS 16 since it launched.

iOS 16.4: Release date

Apple Music Classical is referenced in the MusicKit framework of iOS 16.4, and recently appeared in the App Store as a preorder with a launch date of March 28. This makes it likely that Apple Music Classical is meant to launch after iOS 16.4 (though the app itself requires iOS 15.4 only).

That’s the best indication we have of a date so far–on or before March 28.

iOS 16.4 release notes

These are the official release notes from Apple for iOS 16.4:

• 21 new emoji including animals, hand gestures, and objects are now available in emoji keyboard
• Notifications for web apps added to the Home Screen
• Voice Isolation for cellular calls prioritizes your voice and blocks out ambient noise around you
• Duplicates album in Photos expands support to detect duplicate photos and videos in an iCloud Shared Photo Library
• VoiceOver support for maps in the Weather app
• Accessibility setting to automatically dim video when flashes of light or strobe effects are detected
• Fixes an issue where Ask to Buy requests from children may fail to appear on the parent’s device
• Addresses issues where Matter-compatible thermostats could become unresponsive when paired to Apple Home
• Crash Detection optimizations on iPhone 14 and iPhone 14 Pro models

iOS 16.4: How to install the public beta

Apple released the public beta for iOS 16.4 on Friday, February 17. Here’s how to get it on your iPhone:

1. Click Sign Up on the  and register with your Apple ID.
2. Log in to the Beta Software Program.
3. Click Enroll your iOS device. (If you signed up for a previous version’s beta last year you may need to uninstall the profile for that and then re-enroll for the new one.)
4. Go to  on your iOS device.
5. Download and install the configuration profile.
6. You may need to jump over to Settings to enable the profile. Go to General > VPN and Device Management and tap on the iOS 16 beta profile there.
7. That will make the beta version available in the Settings app, under General > Software Update.

iOS 16.4: How to install the developer beta

Each stage of iOS 16.4’s development cycle will be rolled out to developers first, and then to public beta testers afterward (typically within a day or so). If you’re a developer and need to test your apps against the most up-to-date version of the OS possible, this is the version to run. With iOS 16.4, Apple is requiring all testers to register with thefor $99 a year.

1. In Safari on your iPhone or iPad, go toand log in using your Apple ID.
2. Go to the Downloads section (you’ll find it in the lefthand menu), scroll down to iOS 16 or iPadOS 16 beta and tap Install Profile, then Accept.
3. Open the Settings app. You should see Profile Downloaded at the top of the main screen—tap this. If you can’t see it, go to General > VPN and Device Management and tap on the iOS 16 or iPadOS 16 beta profile there.
4. Tap Install in the top-right to install the iOS or iPadOS 16 beta profile.
5. Read the developer consent form and (assuming you’re happy with the terms) give your consent.
6. Restart your iPhone.
7. Now go to Settings > General > Software Update, where you should see the iOS or iPadOS 16 beta is available. Tap Download and Install.
8. Wait for your iPhone to finish downloading the update, then tap Install when prompted.

And if everything has worked the way it should, your iPhone will now be running the iOS 16 beta.

iOS 16.4: Risks and precautions

Note first of all that betas are test versions of upcoming software. They are by definition unfinished, and while they should include most or all of the features in the finished product, there will be cosmetic differences and, inevitably, some bugs and other issues that will need to be fixed during the development process.

In other words, don’t expect a perfect user experience. In particular, some existing apps (including ones that you may rely on) might not work perfectly with the new version. In extreme cases, you may even find that your device is bricked by the beta, and cannot be used until the next beta comes along. It’s not uncommon for early beta software to exhibit problems like excessive battery drain as well.

We can’t stress enough how important it is to back up your iPhone before you install a beta on your device, or better still, use a secondary device rather than your main iPhone or iPad.