Technologies
iOS 16.4 Is Out. How to Download the Latest iPhone Update
Added features include new emoji, voice isolation for better cellular calls, Safari website notifications for the lock screen and more.
This story is part of Focal Point iPhone 2023, CNET’s collection of news, tips and advice around Apple’s most popular product.
Apple has just released iOS 16.4. The latest software update for the iPhone brings several new features to iOS 16, including 21 new emoji, including the pea pod, light blue heart and jellyfish, and voice isolation for cellular phone calls, which blocks out ambient noises to make your voice clearer.


iOS 16.4 also adds Safari-based push notifications, duplicates album support for the iCloud Shared Photo Library, crash detection optimizations for the iPhone 14 series, VoiceOver support for maps in the Weather app, bug fixes, security updates and more.
Read on for a step-by-step guide to the process of putting iOS 16.4 on your compatible iPhone. You can also check out some of the best existing features on iOS 16 and a few hidden features we were surprised to find. And if you recently got a new iPhone, here are the best iPhone 14 cases so far.
Before you start, is your iPhone even compatible?
Not every iPhone will receive the iOS 16.4 update. You need at least an iPhone 8, which was released back in 2017, to run iOS 16. That also includes the iPhone X, iPhone 11, iPhone SE (second generation and up) and the new iPhone 14.


The iPhone 14 comes preinstalled with iOS 16.
James Martin/CNETNext, back up your iPhone
Getting your hands on new software can be exciting, but there are precautions you should take before updating. You may not be happy with some of the features that iOS 16.4 has to offer (although you can fix some of the most annoying ones), so you need to be able to downgrade back to an earlier version of iOS 16 for whatever reason — and that requires you to back up your iPhone before you update.
By default, your iPhone should back itself up every time it’s connected to power and Wi-Fi during your regular sleep hours. However, if this backup feature is disabled, you can go to Settings > Your Name > iCloud > iCloud Backup and then hit Back Up Now to back up your device.


You can (and should) also back up your iPhone on your Mac.
Screenshot by Nelson Aguilar/CNETAdditionally, you can back up your iPhone via Finder on your Mac. Simply connect your device to your computer, open Finder, choose your device and then create a backup. Apple also recommends archiving your backup, so that it’s not overwritten by other backups.
Also, make sure to do these three things
You want the download and installation process to go as smoothly as possible, and the best way to do that is to do the following:
- Make sure your iPhone is connected to power. You won’t be able to download iOS 16.4 if you’re under 50% battery, so it’s best to just plug in your phone while you update. And even when you’re plugged in, the battery needs to be over 20%.
- Connect to Wi-Fi. You also won’t be able to download iOS 16.4 with cellular data, so connect to a stable Wi-Fi network.
- Clear up enough storage space. If you’re running out of storage, you’ll need to clear some up before you can download and install iOS 16.4. Go to Settings > General > iPhone Storage to delete large files and apps.
Here’s our guide on how to get more iPhone storage.
How to download and install iOS 16.4
Now once you have all that set, open your iPhone and go to Settings > General > Software Update, wait a few seconds (or minutes) for the update to appear and then hit Download and Install for iOS 16.4.


You can also use Finder on your Mac to download iOS 16.4 on your iPhone.
Nelson Aguilar/CNETYou should then see a loading bar, along with a rough estimate of how long the download process will take. Once the download is complete, reboot your device and wait for iOS 16.4 to install. When your iPhone boots up, follow any prompts and you should then see iOS 16.4 downloaded on your device.
For more on the new OS, here’s a look at our iOS 16 cheat sheet and some of the most annoying features and settings on iOS 16 (and how you can fix them).
Technologies
Did You Download the White House App? Here Are Its Hidden Security Risks
Cybersecurity researchers have serious concerns about how the app was built.
The White House mobile app has been available for both Android and iOS users for over a week now, and the Trump administration is proudly touting that the app has received 2 million downloads on the White House Instagram page. However, the app’s threats to your personal data, online security and privacy concerns make it something you should think twice about downloading.
The White House announcement says the app’s goal is to deliver «unparalleled access to the Trump administration.» However, there are many security concerns, including location tracking and sketchy features. The White House has not responded to a request for comment.
The big question is, should you download it? I don’t recommend it. Here’s why.
What’s in The White House App?
When I downloaded it soon after its release, the app opened with music and a brief collage video of President Donald Trump. It has pages on affordability, including the prices of things like eggs and milk (but not gas). There’s an overtime calculator. And there are links to articles from Trump’s favored news outlets, like Fox News and Newsmax, along with White House press releases.
The app also features livestreams and videos of press briefings, links to the White House’s social feeds and photos of the president.
Why I deleted The White House app so fast
Behind all those tabs are hair-raising privacy and security issues that have the internet and experts alarmed.
One X user, @Thereallo1026, decompiled the White House app and blogged about it, reporting that the Android app tracks your location as often as every 4.5 minutes and shares a lot of other information, like your notifications and perhaps even your phone number, with a third-party server.
Another red flag is that the code for YouTube embeds comes from a personal GitHub account. Thereallo said that if that GitHub account gets compromised, it can affect every user of the White House’s app.
Another cybersecurity researcher, Atomic Computer Services, posted similar concerns about the iOS app. The researchers found that the app reported to the App Store that it did not collect location data, when in fact it included the capability to do GPS tracking. It’s unclear whether that tracking actually happens, but the code is there, Atomic Computer said.
Other concerns identified by Atomic Computer included the removal of privacy consent banners from third-party content viewed in the app and minimal security protections. «We’ve audited apps for startups with three employees that had better security than this,» Atomic Computer wrote.
Pieter Arntz, a researcher at the cybersecurity software provider Malwarebytes, said in an email to CNET that the White House app relies heavily on third-party sources for things like notifications and widgets.
«In practical terms, that means external providers can influence what data is collected and when features like location‑based messaging are enabled, because much of that logic is configured on their servers rather than baked into the app code itself,» Arntz said. «For a high‑profile government app, the more these decisions sit with outside companies, the harder it is to guarantee strict data‑minimization and full transparency to users about how their information is handled.»
Government-sponsored apps to inform people are commonplace, but this one poses significant risks, experts said. A spokesperson for the Center for Democracy and Technology, which advocates for transparency and privacy in government technology, told CNET that «mobile apps can be a helpful tool for making government more accessible. But this administration has given people a lot of reasons to worry about their privacy, and this app only raises more questions about what the federal government is doing with our personal data.»
For me, this app is a hard pass. I deleted it 10 minutes after downloading it.
Technologies
Amazon Is Pulling Support for Kindles From 2012 or Earlier. What to Do Now
If there’s a book you’ve been waiting to read on your old Kindle device, make sure you download it before May 20.
That Kindle device you’ve been holding onto for 15 years now has an expiration date, as Amazon will end support for Kindle models from 2012 or earlier on May 20. An Australian Kindle user first reported the change before Amazon confirmed the news to PCMag and said it will soon email users in the US.
The books that you already downloaded on your Kindle device won’t disappear after next month, but you won’t be able to connect to the network to buy, borrow or download new ones.
If you still have a book that you want to finish reading on one of these devices, make sure that you don’t deregister the device or do a factory reset. In the email shared by an Australian user on Reddit, Amazon says if you deregister or reset the device, you won’t be able to re-register the device or use it at all afterward.
A representative for Amazon has not yet responded to a request to comment from CNET.
The company also included a promo code in the email for 20% off select new Kindle devices and an ebook credit that’s added to your account after you purchase a new device. However, there’s no word on whether this discount is limited to Australia or if a version will be offered to US users.
Switching devices
Kindle devices released in 2012 or earlier will lose the ability to download books after May 20. The devices that will be affected are:
- Kindle 1st and 2nd Generation
- Kindle DX and DX Graphite
- Kindle Keyboard
- Kindle 4
- Kindle Touch
- Kindle 5
- Kindle Paperwhite 1st Generation
The first-generation model for Kindle was released in 2007, and e-readers have improved a bit in the time since. Amazon told Engadget that fewer than 3% of its users still use these old devices.
In the email to customers, the company said users will still be able to access their Kindle library and the Kindle store using the Android, iOS or desktop app. You can still read and download books by using the Kindle app on your phone or PC.
If this service loss feels like a good time to move on from the Kindle world, there are other e-reader options. Calibre is a free, open-source ebook manager that offers a range of features, like reading and organizing ebooks from multiple sources, as well as downloading news articles and websites.
If you’re looking for a newer Kindle model or a different reading tablet, check out the CNET list for this year’s best e-readers.
Technologies
Overwatch’s Next Hero Is Sierra, but Does That Mean the Rumors Were Wrong?
The new damage hero joins the roster next week, but lore and gameplay details are still under wraps.
After adding five new heroes in February, Overwatch just gave players another look at the new hero coming in season 2 next week. While we didn’t get gameplay details, the new hero trailer revealed that hero 51 is Sierra, and season 2 will be titled Summit.
The game dropped its first look at Sierra last week, and a few details in the new artwork seemed to be in line with expectations that she’s an ally of damage hero Ashe. Ashe’s Deadlock Gang is mentioned in the new trailer, although Sierra is working with Overwatch in trying to stop them. We don’t know yet whether Sierra has ties to other Overwatch heroes and factions.
Alec Dawson, Overwatch’s associate game director, said in February that the next hero would be another damage hero with a «really satisfying skill shot,» which we maybe glimpsed in the trailer when Sierra fires some kind of homing dart onto Emre after he steals something from Watchpoint: Grand Mesa. We also see her use a fully automatic rifle as well as tether to her drone for some aerial maneuvering, which could be hints at the rest of her kit.
While I do love a good skillshot, I also feel like the game has been struggling with damage hero releases over the past year — particularly heroes who have the ability to quickly eliminate someone out of nowhere. The newest damage heroes Anran and Emre didn’t have this problem, but the previous two, Freja and Vendetta, were consistently banned after release because of their quick time to kill, combined with their ability to consistently surprise enemies. I’m hoping Sierra’s skillshot is less bursty.
Even before the art was revealed last week, fans had started to speculate that Overwatch’s season 2 hero would be Frankie, a member of Ashe’s Deadlock Gang. She appeared in the Deadlock Rebels novel by Lyndsay Ely, which follows Ashe and the hero now known as Cassidy early in their outlaw careers. In the book, Frankie makes contact with the two characters by sending them a tiny fly-like drone — perhaps a smaller version of the drone in Sierra’s character art.
Respectfully… y’all aren’t ready for this one 😮💨🔥
Join us Apr 8 at 9am PT for the premiere of our latest Hero Trailer as we kick off the next chapter in the Reign of Talon 💪 pic.twitter.com/1Etxn68tax— Overwatch (@PlayOverwatch) March 31, 2026
The trailer shows Sierra working to stop the Deadlock Gang (who are helping Emre and Freja steal weapons for Talon), but it’s unclear whether Sierra is another character entirely or whether she’s Frankie after taking a different path.
The game’s Reign of Talon season 1 is wrapping up in the next week. The current season kicked off the year-long storyline about Vendetta taking over Talon and also introduced five new heroes into the roster. Devs have promised another new hero each season during the storyline, and today’s hero trailer gives us a few more hints about Sierra.
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