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

iphone 17 models

No iPhone 18 Launch This Year, Reports Suggest

Thursday January 1, 2026 8:43 am PST by
Apple is not expected to release a standard iPhone 18 model this year, according to a growing number of reports that suggest the company is planning a significant change to its long-standing annual iPhone launch cycle. Despite the immense success of the iPhone 17 in 2025, the iPhone 18 is not expected to arrive until the spring of 2027, leaving the iPhone 17 in the lineup as the latest...
duolingo ad live activity

Duolingo Used iPhone's Dynamic Island to Display Ads, Violating Apple Design Guidelines

Friday January 2, 2026 1:36 pm PST by
Language learning app Duolingo has apparently been using the iPhone's Live Activity feature to display ads on the Lock Screen and the Dynamic Island, which violates Apple's design guidelines. According to multiple reports on Reddit, the Duolingo app has been displaying an ad for a "Super offer," which is Duolingo's paid subscription option. Apple's guidelines for Live Activity state that...
Low Cost A18 Pro MacBook Feature Pink

Apple's 2026 Low-Cost A18 Pro MacBook: What We Know So Far

Friday January 2, 2026 4:33 pm PST by
Apple is planning to release a low-cost MacBook in 2026, which will apparently compete with more affordable Chromebooks and Windows PCs. Apple's most affordable Mac right now is the $999 MacBook Air, and the upcoming low-cost MacBook is expected to be cheaper. Here's what we know about the low-cost MacBook so far. Size Rumors suggest the low-cost MacBook will have a display that's around 13 ...
govee floor lamp

CES 2026: Govee Announces New Matter-Connected Ceiling and Floor Lights

Sunday January 4, 2026 5:00 am PST by
Govee today introduced three new HomeKit-compatible lighting products, including the Govee Floor Lamp 3, the Govee Ceiling Light Ultra, and the Govee Sky Ceiling Light. The Govee Floor Lamp 3 is the successor to the Floor Lamp 2, and it offers Matter integration with the option to connect to HomeKit. The Floor Lamp 3 offers an upgraded LuminBlend+ lighting system that can reproduce 281...
Belkin 25W Battery magnetic

CES 2026: Belkin Announces Magnetic Ring Power Bank, Modular Dock, and More

Sunday January 4, 2026 3:02 pm PST by
Belkin today announced a range of new charging and connectivity accessories at CES 2026, expanding its portfolio of products aimed at Apple device users. UltraCharge Pro Power Bank 10K with Magnetic Ring The lineup includes new Qi2 and Qi2.2 wireless chargers, magnetic power banks, a high-capacity laptop battery, and USB-C productivity accessories, with an emphasis on higher charging...
airpods pro 3 glitter

AirPods New Year's Deals Include Up to $99 Off AirPods Max, AirPods Pro 3, and AirPods 4

Sunday January 4, 2026 8:04 am PST by
Now that the calendar has flipped over into January, steep discounts on popular Apple products have become more rare after the holidays. However, if you didn't get a new pair of AirPods recently and are looking for a model on sale, Amazon does have a few solid second-best prices this week. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a...
Low Cost MacBook Feature A18 Pro

Low-Price 12.9-Inch MacBook With A18 Pro Chip Reportedly Launching Early This Year

Friday January 2, 2026 9:08 am PST by
Apple plans to introduce a 12.9-inch MacBook in spring 2026, according to TrendForce. In a press release this week, the Taiwanese research firm said this MacBook will be aimed at the entry-level to mid-range market, with "competitive pricing." TrendForce did not share any further details about this MacBook, but the information that it shared lines up with several rumors about a more...
Clicks Communicator Feature

'Clicks Communicator' Unveiled — Will You Carry This With Your iPhone?

Friday January 2, 2026 6:35 am PST by
The company behind the BlackBerry-like Clicks Keyboard accessory for the iPhone today unveiled a new Android 16 smartphone called the Clicks Communicator. The purpose-built device is designed to be used as a second phone alongside your iPhone, with the intended focus being communication over content consumption. It runs a custom Android launcher that offers a curated selection of messaging...

Top Rated Comments

nwcs Avatar
51 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
51 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
51 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
51 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
51 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
51 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)