Apple Releases watchOS 8.4.2 With Bug Fixes

Apple today released watchOS 8.4.2, a minor update to the watchOS 8 operating system that launched in September. watchOS 8.4.2 comes two weeks after the release of watchOS 8.4, an update that added a fix for an ongoing charging issue.

watchOS 8 on Apple Watch feature
‌‌watchOS ‌8.4.2 can be downloaded for free through the dedicated Apple Watch app on the iPhone by going to General > Software Update. To install the new software, the Apple Watch needs to have at least 50 percent battery, it needs to be placed on a charger, and it needs to be in range of the ‌‌‌‌‌‌iPhone‌‌‌‌‌‌.

According to Apple's release notes for the update, watchOS 8.4.2 introduces unspecified bug fixes and security updates for the Apple Watch. There is no additional information available on the new software, but if we find out what's addressed, we'll update this article.

Related Roundup: watchOS 26
Related Forum: Apple Watch

Popular Stories

iOS 26

When Will Apple Release iOS 26.2?

Monday December 1, 2025 4:37 pm PST by
We're getting closer to the launch of the final major iOS update of the year, with Apple set to release iOS 26.2 in December. We've had three betas so far and are expecting a fourth beta or a release candidate this week, so a launch could follow as soon as next week. Past Launch Dates Apple's past iOS x.2 updates from the last few years have all happened right around the middle of the...
iPhone Pocket Short

iPhone Pocket is Now Completely Sold Out Worldwide

Tuesday November 25, 2025 7:16 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. However, it is now completely sold out in all countries where it was released. iPhone Pocket became available to order on Apple's online store starting Friday, November 14, in the United States, France, China, Italy, Japan, Singapore, ...
Sad Siri Feature

Apple AI Chief John Giannandrea Retiring After Siri Delays

Monday December 1, 2025 2:16 pm PST by
Apple AI chief John Giannandrea is stepping down from his position and retiring in spring 2026, Apple announced today. Giannandrea will serve as an advisor between now and 2026, with former Microsoft AI researcher Amar Subramanya set to take over as vice president of AI. Subramanya will report to Apple engineering chief Craig Federighi, and will lead Apple Foundation Models, ML research, and ...
Netflix Smaller 4

Netflix Kills Casting From Its Mobile App to Most Modern TVs

Monday December 1, 2025 4:36 am PST by
Netflix has quietly removed the ability to cast content from its mobile apps to most modern TVs and streaming devices, including newer Chromecast models and the Google TV Streamer. The change was first spotted by users on Reddit and confirmed in an updated Netflix support page (via Android Authority), which now states that the streaming service no longer supports casting from mobile devices...
Cyber Week Deals 2025

Best Cyber Week Apple Deals Include Big Discounts on AirPods, Apple Watch, and More

Sunday November 30, 2025 7:33 am PST by
Cyber Week is here, and you can find popular Apple products like AirPods, iPad, Apple Watch, and more at all-time low prices. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. Specifically,...
maxresdefault

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Monday December 1, 2025 3:00 am PST by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Subscribe to the MacRumors YouTube channel for more videos. Below, we've collated an updated set of key details that ...
studio display purple february

M5 iPad Pro Could Hint at New Studio Display Feature

Sunday November 30, 2025 10:30 am PST by
The updated specs of the M5 iPad Pro may point toward a major new feature for Apple's next-generation Studio Display expected in early 2026. Apple's latest iPad Pro debuted last month and contains one display-related change that stands out: it can now drive external monitors at up to 120Hz with Adaptive Sync. The feature should deliver lower latency, smoother motion, and fewer visual...
Touchscreen MacBook Feature

Here Are the Four MacBooks Apple Is Expected to Launch Next Year

Monday December 1, 2025 5:00 am PST by
2026 could be a bumper year for Apple's Mac lineup, with the company expected to announce as many as four separate MacBook launches. Rumors suggest Apple will court both ends of the consumer spectrum, with more affordable options for students and feature-rich premium lines for users that seek the highest specifications from a laptop. Below is a breakdown of what we're expecting over the next ...
New Intel Logo

Apple and Intel Rumored to Partner on Mac Chips Again in a New Way

Friday November 28, 2025 7:33 am PST by
While all Macs are now powered by Apple's custom-designed chips, a new rumor claims that Apple may rekindle its partnership with Intel, albeit in a new and limited way. Apple supply chain analyst Ming-Chi Kuo today said Intel is expected to begin shipping Apple's lowest-end M-series chip as early as mid-2027. Kuo said Apple plans to utilize Intel's 18A process, which is the "earliest...
iphone black friday gold

The Best Black Friday iPhone Deals Still Available

Friday November 28, 2025 6:24 am PST by
Cellular carriers have always offered big savings on the newest iPhone models during the holidays, and Black Friday 2025 sales have kicked off at AT&T, Verizon, T-Mobile, and more. Right now we're tracking notable offers on the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air. For even more savings, keep an eye on older models during the holiday shopping season. Note: MacRumors is...

Top Rated Comments

nwcs Avatar
50 months ago
I wish they would let us update without having to put the watch on the charger if we are on wifi and battery > 80%.
Score: 17 Votes (Like | Disagree)
Will Tisdale ? Avatar
50 months ago

watchOS ‌8.4.2 can be downloaded for free
I’ve noticed this on various occasions.

Has Apple ever charged for a watchOS update? (Or any other OS update in the last 10 years for that matter). No.

Why point out that it’s available for “free” then? Very odd.
Score: 8 Votes (Like | Disagree)
iamasmith Avatar
50 months ago

I wish they would let us update without having to put the watch on the charger if we are on wifi and battery > 80%.
yeah, just being very cautious in case the thing drops over a long download... downside of no tethered recovery mode is that you have to be ultra conservative in the update approach.
Score: 5 Votes (Like | Disagree)
Will Tisdale ? Avatar
50 months ago

I wonder what security issues are being fixed.
[S]https://support.apple.com/en-gb/HT201222

Nothing that has a CVE (yet) seemingly.[/S]

Ignore me. Seemingly I can’t tell the difference between a 1 and a 2 these days. ;)
Score: 3 Votes (Like | Disagree)
jrath1 Avatar
50 months ago
Hope this fixes my NHL team no longer showing up in the Siri watch face. ?

**After the update my NHL team returned to the Siri watch face. Hoping it stays this time.
Score: 2 Votes (Like | Disagree)
iamasmith Avatar
50 months ago
First stop usually is to do an iPhone update check before these and it looks like iOS 15.3.1 is up too. Didn't see an artical covering this.
Score: 2 Votes (Like | Disagree)