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
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.

Related Forum: iOS 16

Popular Stories

iPhone 17 Pro Dark Blue and Orange

iPhone 17 Release Date, Pre-Orders, and What to Expect

Thursday August 28, 2025 4:08 am PDT by
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall. At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 Pro Clear Case Leak Reveals Three Key Changes

Sunday August 31, 2025 1:26 pm PDT by
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface. The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas. Image Credit: @MajinBuOfficial The images show three alleged changes compared to Apple's iP...
iphone 16 pro ghost hand

iPhone 17 Pro: 5 Reasons Not to Upgrade This Year

Monday September 1, 2025 4:35 am PDT by
Apple will launch its new iPhone 17 series this month, and the iPhone 17 Pro models are expected to get a new design for the rear casing and the camera area. But more significant changes to the lineup are not expected until next year, when the iPhone 18 models arrive. If you're thinking of trading in your iPhone for this year's latest, consider the following features rumored to be coming to...
xiaomi apple ad india

Apple and Samsung Push Back Against Xiaomi's Bold India Ads

Friday August 29, 2025 4:54 am PDT by
Apple and Samsung have reportedly issued cease-and-desist notices to Xiaomi in India for an ad campaign that directly compares the rivals' devices to Xiaomi's products. The two companies have threatened the Chinese vendor with legal action, calling the ads "disparaging." Ads have appeared in local print media and on social media that take pot shots at the competitors' premium offerings. One...
iOS 18 on iPhone Arrow Down

Apple Preparing iOS 18.7 for iPhones as iOS 26 Release Date Nears

Sunday August 31, 2025 4:35 pm PDT by
Apple is preparing to release iOS 18.7 for compatible iPhone models, according to evidence of the update in the MacRumors visitor logs. We expect iOS 18.7 to be released in September, alongside iOS 26. The update will likely include fixes for security vulnerabilities, but little else. iOS 18.7 will be one of the final updates ever released for the iPhone XS, iPhone XS Max, and iPhone XR,...

Top Rated Comments

Neepman Avatar
34 months ago
You have to be a real thrillseeker to install a new iOS on day one these days.
Score: 32 Votes (Like | Disagree)
sniffies Avatar
34 months ago
The one thing I want from Apple more than AR, VR, MR, iCar, and AirPower:

Fix the damn HomeKit disaster! My Philips Hue motion sensors are not working at all.
Score: 29 Votes (Like | Disagree)
Realityck Avatar
34 months ago
Finally all the improvements that iOS/IPadOS 16.3 offers to the pubic.

* Support for security keys for Apple IDs
* A redesigned HomePod Handoff prompt following the release of a new second-generation HomePod
* Tweaked wording for Emergency SOS in Settings

Safari changed from version 16.2 to 16.3.

Also numerous fixes

* [I]Fixes an issue in Freeform where some drawing strokes created with Apple Pencil or your finger may not appear on shared boards[/I]
* [I]Addresses an issue where the wallpaper may appear black on the Lock Screen[/I]
* [I]Fixes an issue where horizontal lines may temporarily appear while waking up iPhone 14 Pro Max[/I]
* [I]Fixes an issue where the Home Lock Screen widget does not accurately display Home app status[/I]
* [I]Addresses an issue where Siri may not respond properly to music requests[/I]
* [I]Resolves issues where Siri requests in CarPlay may not be understood correctly[/I]

Released today

* iOS 16.3 (20D47) - January 23, 2023
* iPadOS 16.3 (20D47) - January 23, 2023
* macOS 13.2 (22D49) - January 23, 2023
* watchOS 9.3 (20S648) - January 23, 2023
* tvOS 16.3 (20K650) - January 24, 2023
* iOS 15.7.3 (19H307) - January 23, 2023
* iPadOS 15.7.3 (19H307) - January 23, 2023
* Monterey 12.6.3 (21G419) - January 23, 2023
* Big Sur 11.7.3 (20G1116) - January 23, 2023
* audioOS 16.3 (20K649) - January 24, 2023
Score: 17 Votes (Like | Disagree)
twistedpixel8 Avatar
34 months ago

Does it fix the "upgraded Home" scenes, automations, etc???
Hilarious that Apple broke loads of people’s setups, pulled the upgrade and now just zero mention of any of it. No fix. Nothing.

This is how I expect a company like Eufy to behave, not a Trillion dollar tech giant.
Score: 16 Votes (Like | Disagree)
Jarutais Avatar
34 months ago
I hope this fixes the battery widget that always shows my AirPods Pro case with 0% battery
Score: 15 Votes (Like | Disagree)
TheYayAreaLiving ?️ Avatar
34 months ago
Excellent! Thank you, Apple. I have requested the updated.



Attachment Image
Score: 10 Votes (Like | Disagree)