Apple Seeds iOS 12 Golden Master to Developers and Public Beta Testers Ahead of September 17 Launch Date

Apple today seeded the golden master (GM) version of iOS 12 to developers. The golden master represents the final version of iOS 12 that will be released to the public, and it comes after a beta testing period that saw Apple release 12 betas over the course of the beta testing period.

Registered developers can download the iOS 12 golden master from the Apple Developer Center or over-the-air once the proper configuration profile has been installed, while public beta testers can download the update over-the-air.


iOS 12 is a significant update for the operating system designed for the iPhone, iPad, and iPod touch. It introduces multiple new features, with with Apple revamping the operating system from top to bottom to make iPhones and iPads, especially the older models, faster and more responsive.

On the iPhone X, there are new Animoji characters (Ghost, Koala, Tiger, and T-Rex) along with "Memoji," which are customizable, personalized, humanoid Animoji that can be used both in Messages and in FaceTime, plus there are fun new camera effects in both of those apps.

iOS 12 Memoji
Apple originally planned to introduce Group FaceTime support in iOS 12, but the feature was removed in iOS 12 beta 7 and will not be reintroduced until later this fall in a future iOS 12 update.

Siri is smarter than ever in iOS 12 with a new Shortcuts feature designed to let you create multi-step customized automations using first and third-party apps that can be activated with Siri voice commands. Shortcuts can be created through the Shortcuts app, which will be released alongside iOS 12, and Siri will offer up Shortcuts suggestions.

shortcutsgalleryoptions
Apple built comprehensive time management and monitoring tools into iOS 12 with Screen Time, allowing you to keep track of how much time you're spending in apps on your iPhone and iPad. App limits can help you cut back on iOS device usage, and robust parental controls are included for families.

ios 12 screen time
Updated Do Not Disturb options make activating Do Not Disturb more intuitive and simple, and a new Do Not Disturb at Bedtime feature cuts down on nighttime distractions and sleep interruptions by hiding notifications at night.

ios12donotdisturb
Grouped Notifications make incoming notifications easier to view and manage, while a new Instant Tuning feature lets you tweak your notification settings right on the Lock screen on a notification-by-notification basis to cut down on the number of notifications you receive.


Apple News has a new Browse feature, the Stocks app has been redesigned and brought to the iPad, iBooks has been overhauled with a new look and a new name - Apple Books - and Voice Memos has been revamped with iCloud support and an iPad app.

ARKit 2.0 introduces new capabilities like shared experiences that let two people see the same AR environment on separate devices, and persistence, which allows AR experiences to be saved across multiple sessions. There's also a new Apple-built Measure app for measuring objects using AR functionality.

iOS 12 includes a revamped and rebuilt Maps app that uses a new Apple-designed Maps engine that displays foliage, pools, buildings, pedestrian pathways, and other map elements more accurately. The new Maps also includes significant improvements to traffic, real-time road conditions, construction, and more, plus it lets Apple push out changes and fixes more quickly.

ios12newmapssf
The updated Maps app is available in the Northern California area during beta testing and at launch. Following iOS 12's public release, Apple plans to continue rolling out the new Maps app to additional U.S. locations.

iOS 12 will be released to the public on Monday, September 17, four days ahead of the official launch date of the new 2018 iPhones. For more details on all of the new features included in iOS 12, make sure to check out our iOS 12 roundup.

Related Forum: iOS 12

Popular Stories

iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Monday December 1, 2025 2:40 am PST 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 at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Johny Srouji

Apple Chip Chief Johny Srouji Could Be Next to Go as Exodus Continues

Sunday December 7, 2025 10:41 am PST by
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports. Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
Johny Srouji

Apple's Chipmaking Chief Johny Srouji Responds to Report About Him Potentially Leaving

Monday December 8, 2025 9:23 am PST by
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future. "I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman. Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
top stories 2025 12 04a

Top Stories: iOS 26.2 Coming Soon, Apple Execs Depart, and More

Saturday December 6, 2025 6:00 am PST by
You'd expect things to be starting to wind down for the holidays by now, but that doesn't seem to be the case yet in the world of Apple news, with Apple just about ready to release iOS 26.2 and other operating system updates to the public. There was also a flurry of news this week about Apple executive departures, some expected and some not so expected, while we also learned that Apple and...
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 ...

Top Rated Comments

newtestleper Avatar
95 months ago
You’d have thought twelve months would have been enough time for you to change “iOS 11” to “iOS 12” in this template.
Score: 8 Votes (Like | Disagree)
lostpee Avatar
95 months ago
If you are on Beta 12, you will notice Beta 12 and GM share the same build, with the exception of Beta 12 having an "a" at the end. As such, GM is Beta 12, and if you are running Beta 12, you will not see an update, since you're running the same version of iOS 12 already.
Well .. that is not true ..


Attachment Image
Score: 5 Votes (Like | Disagree)
AppleFan91 Avatar
95 months ago
If you are on Beta 12, you will notice Beta 12 and GM share the same build, with the exception of Beta 12 having an "a" at the end. As such, GM is Beta 12, and if you are running Beta 12, you will not see an update, since you're running the same version of iOS 12 already.
Incorrect. I am running beta 12 and I have an update. The GM removes a the feedback app as well as some other background stuff. Beta 12 is NOT the GM
Score: 4 Votes (Like | Disagree)
newtestleper Avatar
95 months ago
If you are on Beta 12, you will notice Beta 12 and GM share the same build, with the exception of Beta 12 having an "a" at the end. As such, GM is Beta 12, and if you are running Beta 12, you will not see an update, since you're running the same version of iOS 12 already.
Except you were wrong.
Score: 3 Votes (Like | Disagree)
HikariYuki Avatar
95 months ago
If anyone is curious, the build number for the GM is 16A366.
Score: 3 Votes (Like | Disagree)
eVasilis Avatar
95 months ago
You sound like my dad. He formats and reinstalls his OS once a month.
Unlike your dad I want my apple gear to be in top shape; I format and reinstall 3 times a day!
Score: 3 Votes (Like | Disagree)