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

AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Friday April 18, 2025 5:16 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
iphone 17 air dummy unbox therapy

iPhone 17 Air's Extreme Thinness Demoed in New Video

Tuesday April 22, 2025 10:22 am PDT by
Apple plans to release an all-new super thin iPhone this year, debuting it alongside the iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max. We've seen pictures of dummy models, cases, and renders with the design, but Lewis Hilsenteger of Unbox Therapy today showed off newer dummy models that give us a better idea of just how thin the "iPhone 17 Air" will be. The iPhone 17 Air is expected to be ...
iphone 17 dummies sonny dickson

iPhone 17 Air Almost as Thin as Its Buttons, New Images Show

Thursday April 24, 2025 2:14 am PDT by
If you missed the video showing dummy models of Apple's all-new super thin iPhone 17 Air that's expected later this year, Sonny Dickson this morning shared some further images of the device in close alignment with the other dummy models in the iPhone 17 lineup, indicating just how thin it is likely to be in comparison. The iPhone 17 Air is expected to be around 5.5mm thick – with a thicker ...
ipad air windows 11 arm

M2 iPad Air Runs Windows 11 ARM via Emulation, Thanks to EU Rules

Tuesday April 22, 2025 5:01 am PDT by
A developer has demonstrated Windows 11 ARM running on an M2 iPad Air using emulation, which has become much easier since the EU's Digital Markets Act (DMA) regulations came into effect. As spotted by Windows Latest, NTDev shared an instance of the emulation on social media and posted a video on YouTube (embedded below) demonstrating it in action. The achievement relies on new EU regulatory...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday April 17, 2025 4:12 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
iOS 18

iOS 18.5 Includes Only a Few Changes So Far

Monday April 21, 2025 11:00 am PDT by
Apple seeded the third beta of iOS 18.5 to developers today, and so far the software update includes only a few minor changes. The changes are in the Mail and Settings apps. In the Mail app, you can now easily turn off contact photos directly within the app, by tapping on the circle with three dots in the top-right corner. In the Settings app, AppleCare+ coverage information is more...
iPhone 17 Air Pastel Feature

iPhone 17 Air Launching Later This Year With These 16 New Features

Thursday April 24, 2025 8:24 am PDT by
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the ultra-thin device. Overall, the iPhone 17 Air sounds like a mixed bag. While the device is expected to have an impressively thin and light design, rumors indicate it will have some compromises compared to iPhone 17 Pro models, including only a single rear camera, a...

Top Rated Comments

TheAppleFairy Avatar
108 months ago
Crap was hoping for 10.3 today or tomorrow.
Score: 10 Votes (Like | Disagree)
andy.ringwood Avatar
108 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
108 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
108 months ago
Best way to celebrate 10th year of iphone /s
Score: 4 Votes (Like | Disagree)
andrew5494 Avatar
108 months ago
Where's that theatre mode at?
Score: 4 Votes (Like | Disagree)
slimothy Avatar
108 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)