Apple Provides iOS 15.7 and macOS Monterey 12.6 Release Candidates to Developers - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Provides iOS 15.7 and macOS Monterey 12.6 Release Candidates to Developers

Alongside providing the first release candidate version of iOS 16 to developers, Apple today has also seeded new beta versions of iOS 15.7 for the iOS 15 operating system and macOS Monterey 12.6 for the Monterey operating system.

macOS Monterey 2
Both updates are release candidate versions, which means they could see a launch in the near future. The iOS 15.7 update has a version number of 19H12, while macOS Monterey 12.6 has a version number of 21G115.

Registered developers can download necessary profiles to install the updates from the Apple Developer Center, and can download the updates from there.

According to the iOS 15.7 release notes, the update provides security updates rather than new features.

Related Forums: iOS 15, macOS Monterey

Popular Stories

iOS 27 Next to iPhone

Here's When iOS 27 Rolls Out Today in Every Time Zone [Update: It's Out]

Sunday September 13, 2026 3:00 am PDT by
Update 10:04 a.m.: iOS 27 is rolling out now, though it may take a bit for all users to see it, so keep checking! Apple is about to release iOS 27, which will finally deliver more advanced Siri AI capabilities as well as a variety of other refinements, improvements, and new features to iPhones. It's Apple's biggest software update of the year, and Apple announced at Wednesday's iPhone event...
iOS 27 Icon iPhone

iOS 27 Available Now With These 8 New Features

Monday September 14, 2026 9:00 am PDT by
Update — 10 a.m. Pacific Time: Apple has released iOS 27. During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14. iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update. Below, we have highlighted eight new features and...
Apple iCloud Plus expansion hero

iCloud+ Now Includes Apple TV, Apple Arcade, and Curated Apple Music Stations in Over 100 Countries

Tuesday September 15, 2026 1:43 am PDT by
Apple today announced a new subscription initiative that turns paid iCloud+ subscriptions into a broader services bundle in more than 100 countries. In select countries, Apple says every paid iCloud+ plan, including the cheapest 50GB tier, now includes Apple TV and Apple Arcade "at no additional cost," while family sharing extends the storage, TV and Arcade access to up to five people....

Top Rated Comments

53 months ago

Is this for all iOS 15 devices or just the ones not getting iOS 16?
All.

I suspect this will be like iOS 14.8, and you'll be able to choose if you want to install 16.0 or 15.7.

The firmware codenames or "build trains" are:
...
14.5: AzulE
14.6: AzulF
14.7: AzulG
14.8: AzulSecuritySky
...
15.5: SkyF
15.6: SkyG
15.7: SkySecuritySydney
16.0: Sydney

So it seems like a similar pattern, 14.8 was "iOS 14 with security updates backported from iOS 15", and 15.7 is "iOS 15 with security updates backported from iOS 16".
Score: 5 Votes (Like | Disagree)
53 months ago
Is this for all iOS 15 devices or just the ones not getting iOS 16?
Score: 4 Votes (Like | Disagree)
Mr Todhunter Avatar
53 months ago

If anyone's wondering how to see the macOS 12.6 RC, install the Profile for Ventura, but then select Other Updates and it'll come up there. I was also offered a new Safari Seed, not the Tech Preview.

Once completed, remove the profile by reverting back to Default settings under Software updates. If there's a new build when it's officially released, you'd still get that, otherwise you'd be on it anyway...
Thank you. I’m installing it right now
Score: 1 Votes (Like | Disagree)
53 months ago

It'll be interesting to see if iOS 15.7 will be available in .ipsw form to allow downgrading from iOS 16 or if it'll only be available as an on-device alternate software update.
15.7 release candidate is already available in ipsw form.

It remains to be seen if the final build will be the same, if there will be an ipsw of the final build if it's not the same as the RC, and if there will be an ipsw for 15.7.1 and later ones...
Score: 1 Votes (Like | Disagree)
AjTee Avatar
53 months ago
I had iOS 16 and WatchOS 16 update.

iOS 16:


WatchOS 16:


Are these builds RC?

Attachment Image

Attachment Image
Score: 1 Votes (Like | Disagree)
PsykX Avatar
53 months ago

I see iOS 16 update on Public channel, is it RC?
Ventura will be in October along with a Mac event.
Score: 1 Votes (Like | Disagree)