Apple Seeds Fourth Beta of iOS 12.4 to Developers [Update: Public Beta Available]

Apple today seeded the fourth beta of an upcoming iOS 12.4 update to developers, two weeks after seeding the third iOS 12.4 beta, and a month after releasing iOS 12.3, a major update that introduced a revamped TV app.

Registered developers can download the new iOS 12.4 beta from Apple's Developer Center or over-the-air once the proper configuration profile has been installed from the Developer Center.

ios12banner
There were no new features discovered in the first three iOS 12.4 betas, so it's not entirely clear what's coming in the update. As a more significant 12.x update, it's possible that the update is focusing on a feature that's not yet available -- the Apple Card.

Apple is planning to release the ‌Apple Card‌ in the summer, so iOS 12.4 could be the update that prepares the iOS operating system for that launch, adding hidden features that will be unlocked when the update becomes available to the public.

If we find new features in the fourth beta of iOS 12.4, we'll update this post.

iOS 12.4 may be one of the last updates to the iOS 12 operating system as Apple transitions to iOS 13, set to launch this September.

Related Forum: iOS 12

Popular Stories

iPhone 17 Pro Iridescent Feature 2

iPhone 17 Pro Clear Case Leak Reveals Three Key Changes

Sunday August 31, 2025 1:26 pm PDT by
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface. The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas. Image Credit: @MajinBuOfficial The images show three alleged changes compared to Apple's iP...
iPhone 17 Pro Dark Blue and Orange

iPhone 17 Release Date, Pre-Orders, and What to Expect

Thursday August 28, 2025 4:08 am PDT by
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall. At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
iphone 16 pro ghost hand

iPhone 17 Pro: 5 Reasons Not to Upgrade This Year

Monday September 1, 2025 4:35 am PDT by
Apple will launch its new iPhone 17 series this month, and the iPhone 17 Pro models are expected to get a new design for the rear casing and the camera area. But more significant changes to the lineup are not expected until next year, when the iPhone 18 models arrive. If you're thinking of trading in your iPhone for this year's latest, consider the following features rumored to be coming to...
iPhone 17 Pro 3 4ths Perspective Aluminum Camera Module 1

New iPhone 17 Pro Details: Brighter Display, Best Battery Life, and More

Wednesday September 3, 2025 5:33 am PDT by
Apple's iPhone 17 Pro and iPhone 17 Pro Max models will feature a number of significant display, thermal, and battery improvements, according to new late-stage rumors. According to the Weibo leaker known as "Instant Digital," the iPhone 17 Pro models will feature displays with higher brightness, making it more suitable for use in direct sunlight for prolonged periods. The iPhone 16 Pro and...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 and iPhone 17 Pro Prices Estimated Ahead of Apple Event Next Week

Tuesday September 2, 2025 1:50 pm PDT by
Just one week before Apple is expected to unveil the iPhone 17 series, an analyst has shared new price estimates for the devices. Here are J.P. Morgan analyst Samik Chatterjee's price estimates for the iPhone 17 series in the United States, according to 9to5Mac: Model Starting Price Model Starting Price Change iPhone 16 $799 iPhone 17 ...
xiaomi apple ad india

Apple and Samsung Push Back Against Xiaomi's Bold India Ads

Friday August 29, 2025 4:54 am PDT by
Apple and Samsung have reportedly issued cease-and-desist notices to Xiaomi in India for an ad campaign that directly compares the rivals' devices to Xiaomi's products. The two companies have threatened the Chinese vendor with legal action, calling the ads "disparaging." Ads have appeared in local print media and on social media that take pot shots at the competitors' premium offerings. One...
iOS 18 on iPhone Arrow Down

Apple Preparing iOS 18.7 for iPhones as iOS 26 Release Date Nears

Sunday August 31, 2025 4:35 pm PDT by
Apple is preparing to release iOS 18.7 for compatible iPhone models, according to evidence of the update in the MacRumors visitor logs. We expect iOS 18.7 to be released in September, alongside iOS 26. The update will likely include fixes for security vulnerabilities, but little else. iOS 18.7 will be one of the final updates ever released for the iPhone XS, iPhone XS Max, and iPhone XR,...

Top Rated Comments

HiVolt Avatar
81 months ago
I really do hope that they enable the ECG in this update for Canadians, now that Health Canada has given approval. I really hope we don't have to wait for iOS 13/WatchOS 6, for a feature that already works in other regions, just needs enabling for Canada.

Or can that be done remotely without an update?
Score: 3 Votes (Like | Disagree)
nicho Avatar
81 months ago
What's a Mini 4s?
Pretty sure it’s two (or more) of iPad Mini 4... how would you prefer it to be written? iPad Minis 4? iPads Mini 4?
Score: 2 Votes (Like | Disagree)
chucker23n1 Avatar
81 months ago
I'm confused. If it's supposed to add functionality which hasn't yet been enabled, then how are the beta users supposed to actually test it? :confused:
It's a developer beta. The main purpose is to test that your apps continue to work properly, not test new features.

(Developer betas also sometimes come with Release Notes calling out what in particular to test.)
Score: 2 Votes (Like | Disagree)
zarmanto Avatar
81 months ago
I'm confused. If it's supposed to add functionality which hasn't yet been enabled, then how are the beta users supposed to actually test it? :confused:
Score: 1 Votes (Like | Disagree)
poe diddley Avatar
81 months ago
1. What's a Mini 4s? ;)
2. Restore
3. Reset, If those doesn't resolve the problem then..go to 4
4. Contact Apple
sorry for not spelling it out kindergarten style

Our IPAD mini 4s- plural(notice there's not an apostrophe which would make it possessive)
lost wifi when the 12.3.1 update came out
20 devices had wifi, were updated and then had no wifi.
I work at a repair facility, so please watch your mouth about contacting apple;)
Score: 1 Votes (Like | Disagree)
Jason B Avatar
44 months ago
[HEADING=2]Wasn’t sure where to post this. I have an XS and I’m still on iOS 12.4 beta. It works good still. Is there any reason I should update?[/HEADING]
Score: 1 Votes (Like | Disagree)