Apple Seeds Fourth Beta of iOS 12.1 to Developers [Update: Public Beta Available]

Apple today seeded the fourth beta of an upcoming iOS 12.1 update to developers, one week after seeding the third beta and a month after releasing iOS 12, a major new version of the iOS software.

Registered developers can download the new iOS 12.1 beta from Apple's Developer Center or over-the-air once the proper configuration profile has been installed from the Developer Center.

groupfacetime
iOS 12.1 includes several new features that Apple promised would come to the iPhone XS and XS Max. The beta introduces support for the eSIM, which is a digital SIM that lets you activate a cellular plan from a carrier without the need to use a physical SIM card.

Carriers will need to implement support for eSIM, which is likely to happen after iOS 12.1 launches. In the U.S., AT&T, Verizon, and T-Mobile will support eSIM.

appleesim
The iOS 12.1 update brings a new real-time Depth Control feature, which lets you adjust the depth of field of your Portrait Mode photos before you capture them. Right now, in iOS 12, Depth Control is only available for post-capture editing.

If you tap on the "F" icon at the top of the screen while capturing a photo you use Depth Control to adjust the amount of background blur in an image.

iphonexsdepthcontrol
In addition to these iPhone XS and XS Max features, iOS 12.1 reintroduces the Group FaceTime feature that was removed from iOS 12 during the beta testing period. Group FaceTime was present in many early betas but was ultimately removed because Apple needed more time to test it.

Group FaceTime is designed to let iPhone and Mac users conduct video and audio chats with up to 32 participants at one time, with new camera effects features included.

The update also adds more than 70 new emoji to iPhones and iPads, with options that include red hair, gray hair, curly hair, cold face, party face, face with hearts, mango, kangaroo, peacock, lobster, cupcake, and tons more.

As for bug fixes, iOS 12.1 addresses a charging problem that could cause iPhone and iPad models running iOS 12 to fail to charge when connected to a Lightning cable while the screen is off and it fixes a bug that caused iPhone XS and XS Max models to prefer 2.4GHz WiFi networks to 5GHz networks, resulting in perceived slower WiFi speeds. Both of these bugs have also been addressed in the iOS 12.0.1 update, released last week.

If any additional new features are found in the fourth iOS 12.1 beta, we'll update this post with details.

Update: Apple has also seeded a new public beta of iOS 12.1 to its public beta testing group.

Update 2: As noted by Emojipedia, Apple tweaked the design of the bagel emoji in iOS 12.1 beta 4 to add cream cheese and more texture to the bread.

bagelemojiios121

Related Forum: iOS 12

Popular Stories

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 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...
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...
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...
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

Apple Seeds iOS 26.1, iPadOS 26.1, and macOS Tahoe 26.1 Release Candidates

Tuesday October 28, 2025 1:07 pm PDT by
Apple today provided developers and public beta testers with the release candidate versions of upcoming iOS 26.1, iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, watchOS 26.1, and visionOS 26.1 updates for testing purposes. The RCs betas come a week after Apple released the fourth betas. The new betas can be downloaded from the Settings app on a compatible device by going to General > Software...
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

Cankoda Avatar
92 months ago

Update 2:
As noted by Emojipedia, Apple tweaked the design of the bagel emoji in iOS 12.1 beta 4 to add cream cheese and more texture to the bread.


What a time to be alive
Score: 9 Votes (Like | Disagree)
WannaGoMac Avatar
92 months ago
Haven’t had a chance to try FaceTime till last night, now I know what everyone’s complaining about. How can they mess up an app so badly? Hoping the group version fixes the interface.
Yeah gotta wonder whose idea it was to make multiple steps what used to be single steps. Switching cameras is something people do a lot of with Facetime.
Score: 5 Votes (Like | Disagree)
aardwolf Avatar
92 months ago
12.0.1 was not released yesterday. I assume that’s a copy/paste error. :)
Yes, they have to copy/paste the exact same thing for all 11 builds... in case we forgot since last time. Apparently they have stopped reviewing it for accuracy.
Score: 4 Votes (Like | Disagree)
btrach144 Avatar
92 months ago
Why hasn't there been another public beta yet?
? Serious? I bet you the public beta 4 is released within 6 hours. chill out
Score: 4 Votes (Like | Disagree)
class77 Avatar
92 months ago
What if your slow wifi is NOT caused by connecting to the 2.4 range? What about addressing the poor LTE speeds? Anything done to address these problems
Score: 3 Votes (Like | Disagree)
brian3uk Avatar
92 months ago
Why hasn't there been another public beta yet?
it typically comes later in the day. just be patient.
Score: 3 Votes (Like | Disagree)