Apple Releases iOS 16.3 With Security Keys for Apple ID, New HomePod Support, Bug Fixes and More
Apple today released iOS 16.3, the third major update to the iOS 16 operating system that first came out in September. iOS 16.3 comes over a month after the launch of iOS 16.2, an update that added the Freeform app, Apple Music Sing, Advanced Data Protection, and more.

iOS 16.3 can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. It can take a few minutes for the updates to propagate to all users due to high demand. Apple has also released iOS 15.7.3 for iPhone users who have older devices, with the update offering security improvements.
Today's update introduces Security Keys for Apple ID, allowing for physical two-factor authentication that replaces the digital two-factor authentication used for Apple ID logins. There is a new Unity wallpaper, along with support for the second-generation HomePod. The update also rolls out Advanced Data Protection for iCloud to all users globally.
Apple tweaked Emergency SOS to prevent accidental emergency calls. You can still activate Emergency SOS when holding down the side button with the up or down volume button, but a call won't be placed until the buttons are released.
A number of bug fixes are also included, with Apple addressing an issue that could cause horizontal lines to temporarily appear on the iPhone 14 Pro Max, a bug that could result in the Home Lock Screen widget not accurately displaying Home app status, and Siri bugs related to music requests and CarPlay. Apple's full release notes for the update are below:
This update includes the following enhancements and bug fixes:
- New Unity wallpaper honors Black history and culture in celebration of Black History Month
- Security Keys for Apple ID allow users to strengthen the security of their account by requiring a physical security key as part of the two factor authentication sign in process on new devices
- Support for HomePod (2nd generation)
- Emergency SOS calls now require holding the side button with the up or down volume button and then releasing in order to prevent inadvertent emergency calls
- Fixes an issue in Freeform where some drawing strokes created with Apple Pencil or your finger may not appear on shared boards
- Addresses an issue where the wallpaper may appear black on the Lock Screen
- Fixes an issue where horizontal lines may temporarily appear while waking up iPhone 14 Pro Max
- Fixes an issue where the Home Lock Screen widget does not accurately display Home app status
- Addresses an issue where Siri may not respond properly to music requests
- Resolves issues where Siri requests in CarPlay may not be understood correctly
More information on all of the features in iOS 16 can be found in our roundup. Apple has also released an iOS 15.7.3 security update that is available for those who are still running iOS 15, as well as an iOS 12.5.7 update for those who have an even older device.
Popular Stories
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025:
Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Apple may have updated several iPads and Macs late last year and early this year, but there are still multiple new devices that we're looking forward to seeing in 2025. Most will come in September or October, but there could be a few surprises before then.
We've rounded up a list of everything that we're still waiting to see from Apple in 2025.
iPhone 17, 17 Air, and 17 Pro - We get...
Apple's upcoming foldable iPhone (or "iPhone Fold") will feature two screens as part of its book-style design, and a Chinese leaker claims to know the resolutions for both of them.
According to the Weibo-based account Digital Chat Station, the inner display, which is approximately 7.76 inches, will use a 2,713 x 1,920 resolution and feature "under-screen camera technology." Meanwhile, the...
A common complaint about the iPad Pro is that the iPadOS software platform fails to fully take advantage of the device's powerful hardware.
That could soon change.
Bloomberg's Mark Gurman today said that iPadOS 19 will be "more like macOS."
Gurman said that iPadOS 19 will be "more like a Mac" in three ways:Improved productivity
Improved multitasking
Improved app window management...
Apple in October 2024 overhauled its 14-inch and 16-inch MacBook Pro models, adding M4, M4 Pro, and M4 Max chips, Thunderbolt 5 ports on higher-end models, display changes, and more. That's quite a lot of updates in one go, but if you think this means a further major refresh for the MacBook Pro is now several years away, think again.
Bloomberg's Mark Gurman has said he expects only a small...
Apple is working on a new version of the Vision Pro with two key advantages over the current model, according to Bloomberg's Mark Gurman.
Specifically, in his Power On newsletter today, Gurman said Apple is developing a new headset that is both lighter and less expensive than the current Vision Pro, which starts at $3,499 in the U.S. and weighs up to 1.5 pounds.
Gurman said Apple is also...
On this week's episode of The MacRumors Show, we catch up on the latest iOS 19 and watchOS 12 rumors, upcoming devices, and more.
Subscribe to The MacRumors Show YouTube channel for more videos
Detailed new renders from leaker Jon Prosser claim to provide the best look yet at the complete redesign rumored to arrive in iOS 19, showing more rounded elements, lighting effects, translucency, and...
It was a big week for leaks and rumors in the Apple world, with fresh claims about iOS 19, the iPhone 17 Pro, and even the 20th anniversary iPhone coming a couple of years from now.
Sources also spilled the tea on the inner turmoil at Apple around the Apple Intelligence-driven Siri revamp that has seen significant delays, so read on below for all the details on these stories and more!
iOS ...
Apple and other electronics manufacturers have received a break from Trump's reciprocal tariffs, with the U.S. Customs and Border Protection agency sharing a long list of products excluded from the levies last night.
iPhones, Macs, iPads, Apple Watch, and other Apple devices will not be subject to the 125 percent tariffs that have been put in place on imported Chinese goods, nor will Apple...