Apple Seeds Third Beta of iOS 10.2.1 to Developers

Apple today seeded the third beta of an upcoming iOS 10.2.1 update to developers, three weeks after seeding the second iOS 10.2.1 beta and nearly a month after releasing iOS 10.2, the second major update to the iOS 10 operating system.

Registered developers can download the third iOS 10.2.1 beta from the Apple Developer Center or over-the-air with the proper configuration profile installed.

ios-10-2-1-beta
It isn't yet known what features are included in iOS 10.2.1, but as a minor 10.2.x update, it appears to focus on bug fixes and performance improvements rather than major outward-facing changes. No new features were discovered in the first two iOS 10.2.1 betas, but we'll update this post if any changes are found in the third beta.

iOS 10.2.1 follows the release of iOS 10.2, a significant update that brought Unicode 9 emoji, a new TV app, Messages Screen Effects, Music improvements, and a whole slew of bug fixes.

Update: The third public beta is also available.

Related Forum: iOS 10

Popular Stories

iOS 26 Battery Glass Feature

iOS 26.1 Beta Liquid Glass Battery Drain Test: Tinted vs Clear Mode

Friday October 24, 2025 2:30 pm PDT by
In the fourth iOS 26.1 beta, Apple added a "Tinted" option that reduces the translucency of Liquid Glass for those who prefer a more opaque look. I saw some comments wondering whether the setting might preserve battery life, so I thought I'd do some testing. Test Settings I did four separate tests using the iPhone 17 Pro Max, and I kept the parameters as similar as possible. Here are the...
iOS 26

iOS 26.1 Coming Soon: New Features for Your iPhone and Release Date

Monday October 27, 2025 7:55 am PDT by
The upcoming iOS 26.1 update includes a handful of new features and changes for iPhones, including a toggle for changing the appearance of the Liquid Glass design, "slide to stop" for alarms in the Clock app, and more. Below, we outline key details about iOS 26.1. Release Date Given that Apple has yet to seed an iOS 26.1 Release Candidate, which is typically the final beta version, the...
iOS 26 Maps Glass

Apple Reportedly Moving Ahead With Ads in Maps App

Sunday October 26, 2025 6:22 am PDT by
Apple Maps could feature integrated ads as soon as next year, Bloomberg's Mark Gurman reports. In his latest "Power On" newsletter, Gurman said that Apple's plan to bring more ads to iOS is moving "gaining traction," with the Maps app being next in line. The project will apparently give restaurants and other businesses the option to pay to have their details featured more prominently in...
maxresdefault

Apple TV 4K Could Still Launch Before 2025 Ends: All the Rumored Features

Monday October 27, 2025 4:51 pm PDT by
Apple is designing an updated version of the Apple TV 4K, and rumors suggest that it could come out sometime in the next couple of months. We're not expecting a major overhaul with design changes, but even a simple chip upgrade will bring major improvements to Apple's set-top box. Subscribe to the MacRumors YouTube channel for more videos. We've rounded up all the latest Apple TV rumors. ...
iOS 26

iOS 26.1 Coming Soon With These 8 New Features for Your iPhone

Wednesday October 22, 2025 6:15 am PDT by
The upcoming iOS 26.1 update includes a handful of new features and changes for iPhones, including a toggle for changing the appearance of the Liquid Glass design, "slide to stop" for alarms in the Clock app, and more. iOS 26.1 is currently in beta testing. The update will likely be released in the first half of November, and it is compatible with the iPhone 11 series and newer, but some...
M6 MacBook Pro Feature 1

M6 MacBook Pro: Release Date, Pricing, and What to Expect

Monday October 27, 2025 9:15 am PDT by
Apple this month refreshed the 14-inch MacBook Pro base model with its new M5 chip, and higher-end 14-inch and 16-inch MacBook Pro models with M5 Pro and M5 Max chips are expected to follow in early 2026. However, these machines will represent the final update to the current design, with Apple reportedly developing a completely new version of the MacBook Pro packed with next-generation hardware...
iPhone 17 Colors

iPhone 18 Rumored to Feature 50% More RAM

Saturday October 25, 2025 2:57 am PDT by
Apple's upcoming iPhone 18 could feature 50% more memory than its predecessor, according to Korea's The Bell. With its latest iPhone lineup, the iPhone Air, iPhone 17 Pro, and iPhone 17 Pro Max feature 12GB of memory. This is a significant increase of 4GB more their predecessors, largely driven by the demands of on-device artificial intelligence processing. The iPhone 17 is the only new...
swift for android

Developers Can Now Make Android Apps With Apple's Swift

Sunday October 26, 2025 4:23 am PDT by
The first preview release of the Swift SDK for Android was published this week, allowing developers to build Android apps in Swift with official tooling and making it easier to share code across iOS and Android. The SDK enables Android apps to be built in Swift using officially supported tooling rather than community workarounds. In June, it was announced that Apple's Swift programming...
ios 26 digital id passport wallet

Apple Says U.S. Passport Feature on iPhone is Coming Soon

Monday October 27, 2025 7:41 am PDT by
You will "soon" be able to add a digital version of your U.S. passport to your iPhone, according to Jennifer Bailey, vice president of Apple Pay and Apple Wallet. Bailey reiterated that the feature is coming soon during her keynote at the Money20/20 USA conference in Las Vegas on Sunday. On its iOS 26 page, Apple says the delayed feature will be "coming later this year." Apple's...

Top Rated Comments

TheAppleFairy Avatar
115 months ago
Crap was hoping for 10.3 today or tomorrow.
Score: 10 Votes (Like | Disagree)
andy.ringwood Avatar
115 months ago
Guys calm down all the 10.3 leak was from a random dude on twitter and us humans go crazy and make people go viral, there is no dark mode on ios 10 and ios 10.3 will be out in few months they haven't even finnished 10.2.1 yet so guys chill out
Sonny Dickson. Yeah, a "random dude".

As I mentioned just a minute ago, Apple don't work on one build at a time.

You're right. 10.3 will be out in a few months but before that we'll go through multiple beta phases which will probably start tomorrow.

Some people have no idea what they're talking about...
Score: 6 Votes (Like | Disagree)
Markarian421 Avatar
115 months ago
Hopefully it will have a fix for the Bluetooth stutter/skipping? Maybe they had to tack that on at the last moment now that AirPods are shipping and they can't blame everyone else's firmware anymore.
Score: 5 Votes (Like | Disagree)
thasan Avatar
115 months ago
Best way to celebrate 10th year of iphone /s
Score: 4 Votes (Like | Disagree)
andrew5494 Avatar
115 months ago
Where's that theatre mode at?
Score: 4 Votes (Like | Disagree)
slimothy Avatar
115 months ago
What does that have to do with my post? A developer is not just going to install 10.2.1 and then not update to 10.3 in order to continue testing and building their apps. They are going to want to run the latest builds to make sure everything is working properly.
I'm going to disagree. Developers want to run 10.2.1 on one device, and 10.3 on another. Not everyone updates. They will want to test on all firmware versions.
Score: 3 Votes (Like | Disagree)