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iOS 18.6.1 ― Bug Fixes, Changes, and Improvements

Status
The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.
Banglazed

Banglazed

macrumors 603
Original poster
Apr 17, 2017
5,093
10,103
Cupertino, CA
iOS 18.6.1

Release Date ― August 14, 2025
Build Number ― 22G90
Darwin Kernel Version ―

This update provides a new Blood Oxygen experience for users in the United States with Apple Watch Series 9 and Series 10, and Apple Watch Ultra 2. Measurements are calculated on iPhone and viewed in the Health app.

iOS 18.6 Beta Release Notes

Remaining Issues
Resolved Issues
Features:

Additional Notes
To get the beta over-the-air:
  1. Enable Beta Updates (Settings > General > Software Updates > Beta Updates)
  2. Make sure you’re signed into the right Apple Account
  3. Select which beta you’d like to receive (public/developer beta)
  4. Hit "Back" and pull down to refresh
  5. Back up to a computer or to iCloud
  6. Install the beta
If you no longer wish to receive beta updates:
  1. Turn off the Beta Updates (you can also sign out of your Apple Account to reset this setting)
  2. Wait for the next public release or follow the guide below to go back to a release build
Troubleshooting: If the beta doesn’t show up on your phone, try turning on airplane mode, then turning it back off, or restart your device.

How to install using a Mac?
  1. You’ll need the Xcode beta itself or a MobileDevice.pkg somebody extracted from the beta (click with two fingers or control-click), then choose Show Package Contents. Go to Contents/Resources/Packages. - this will work on older Macs that do not support the latest macOS or Xcode betas)
  2. Back up to your Mac or to iCloud in case you need to go back to another version
  3. Hold down Option, then click on ‘Check for Update’/‘Restore iPhone...’ and select the IPSW file you downloaded from the Apple Developer site. Note: You must be connected to the internet to complete the restore.
  4. Enter your iPhone passcode if you’re prompted to do so.
Notes/Tips:
  • Always keep a backup in case you need to restore your phone
  • Restoring wipes your settings and all data on your iPhone
  • You only need to reinstall MobileDevice.pkg if your Mac stops recognizing your iPhone
  • There is no MobileDevice.pkg equivalent to iTunes for PC which would require a new iTunes to support new/beta iOS
  • Upgrading to a newer iPhone? You can update using your Mac before setting up the phone
  • iPhone 16 series: 1.70.02
  • iPhone 16e: 1.0.13
  • iPhone 15 series: 2.70.02
  • iPhone 14 series: 3.70.02
  • iPhone 13 series and iPhone SE (3rd gen): 4.70.01
  • iPhone 12 series: 5.10.01
  • iPhone 11 series, iPhone SE (2nd gen) and iPad Air (Cellular, 4th gen): 6.01.01
  • iPhone XS, XS Max and XR: 7.01.01
Australia
  • Optus - 51.0
  • Telstra - 55.0
  • Vodafone AU - 64.5.5
Belgium
  • BASE - 33.0
  • Orange B - 58
  • Proximus - 45.0
  • Telenet - 64.5.6
Brazil (updated 26b1r2, unchanged from 26b1)
  • Claro Brasil - 64.5.4
  • Vivo - 64.5.4
  • TIM -
  • Oi -
Canada
  • Bell - 62.8
  • Fido - 56.0
  • Fizz - 53.0
  • Freedom/Shaw Mobile - 54.8.6
  • Mint Mobile - 58.0
  • Public Mobile - 54.8.4
  • Rogers - 64.3
  • Telus - 54.8.8
  • Videotron - 53.0
  • Virgin Mobile - 50.0
Denmark
  • 3 DK - 46.7.11
  • TDC 64.0
  • Norlys 64.0.1
Finland
  • DNA - 58.5.7
France
  • Bouygues Telecom - 40.0
  • Orange France - 63.0
  • Free - 64.1.1
  • SFR -
Germany
  • Vodafone.de - 62.8.1 and RCS enabled
  • Telekom.de - 64.5.6 and RCS enabled
  • o2-de - 61.6.1 RCS enabled
Greece:
  • Cosmote - 38.0
Guatemala
  • TIGO GT - 49.0
India
  • Airtel - 58.5.18
  • Jio - 58.5.18 (iPhone) and 58.5.18 (iPad)
  • Vi India (Vodafone Idea) - 58.5
Ireland
  • Eir - 33.5
  • Vodafone IE - 38.0
Mexico
  • AT&T - 57.0
  • Telcel - 57.6
Morocco
  • Orange - 50.0
Netherlands
  • KPN - 61.0
  • Vodafone NL - 45.0
  • Odido -
Poland
  • T-Mobile - 64.5.4
  • Orange - 64.5.2
  • Play - 61.0
  • Plus - 61.0
Portugal
  • Vodafone P - 40.0
Romania
  • Orange RO - 55.0
Slovakia
  • Orange SK - 57.6
Southeast Asia
  • Singapore Singtel -
  • Philippines Globe - 62.0
  • Philippines Globe (iPad) - 38.0
  • Philippines Smart - 63.0
  • Thailand AIS - 53.0
  • Thailand DTAC - 53.0
  • Malaysia Umobile - 33.0
  • Malaysia Maxis -33.0
  • Malaysia Digi -
  • Malaysia celcom -
  • Hong Kong - 32.0
  • Taiwan -
Spain
  • Orange ES - 64.5.5
  • DIGI ES - 54.8.4
  • Vodafone ES - 54.8.8
  • Movistar - 58.0
  • Yoigo - 63.0
Sweden
  • Comviq -
  • Tre - 31.0
Switzerland
  • Salt - 58.0
  • Sunrise - 63.0
  • Swisscom - 63.0
Turkey
  • Turkcell (Lifecell) - 36.5.5
  • Vodafone TR - 32.0
  • Turk Telekom - 32.0
United Kingdom
  • BT-UK (EE MVNO) -
  • EE - 64.0
  • Giffgaff (O2 MVNO) -
  • iD Mobile (Three MVNO) - 64.2
  • Lebara (Vodafone MVNO) -
  • Mozillion (EE MVNO) - 63.5.1
  • Lyca (EE MVNO) -
  • O2-UK -
  • Sky (O2 MVNO) -
  • Three - 64.2
  • Virgin Mobile (EE MVNO) -
  • Vodafone UK -
United States
  • AT&T - 64.0.1
  • Boost - 57.0
  • Cricket - 60.5.5
  • FirstNet - 55.0
  • FirstNet (iPad) - 41.7.6
  • Metro (TMO MVNO) - 64.5.12
  • Spectrum (VZW MVNO) - 64.0.1
  • T-Mobile - 64.0.2
  • TracFone/Straight Talk/Walmart Family Mobile - 63.5
  • U.S. Cellular - 46.7.24
  • Ultra/Mint Mobile (TMO MVNO) - 64.0
  • Verizon - 64.0
  • Visible (VZW MVNO) - 62.0
  • Xfinity Mobile - 57.6.1
Other
  • Docomo - 32.5.10
  • AlwaysOnline -

Historical beta release chart

iOS Version History Chart

iOS version history chart
www.thinkybits.com www.thinkybits.com
 
Last edited:
  • Like
Reactions: James6s and Hans300
And why an international update if it affects only US devices? Or is everyone getting the same solution?
 
Preparing to install this update. No other fixes etc and just to add blood oxygen?

Interesting to see how it runs, battery life etc
 
blood oxygen Not working on my update on my ultra 2. Am I missing something? Possibly automatic background recording. I cannot initiate a measurement manually.
 
Last edited:
3Rock said:
blood oxygen Not working on my update on my ultra 2. Am I missing something? Possibly automatic background recording. I cannot initiate a measurement manually.
Click to expand...

RingOfive said:
Same. Not working on my ultra 2 either.
Click to expand...
No issues on my UW2. When I opened the App, I was prompted that results would only appear in the Health app. It then gave me directions how to rest my wrist during a test. Finally a "Start" button appeared. 15 second test and then a notification on my phone that the results were ready.
 
Restarted both my watch and my iPhone 16 Pro and make sure all settings were on and still a no go.
 
Anyone else having a really annoying bug that every time you open messages after force closing it, contact names are not there but only phone numbers? Its only happening on two of my four devices. I've tried everything short of a restore as new. Its apparently been happening since iOS 18.0 beta, however, it only started for me on 18.6.

Here is a video of it:
https://www.reddit.com/r/ios18beta/comments/1f0rhjb/delayed_showing_of_contact_names
 
One thing I have noticed and I’ve reported to Apple in the past, is that my 16 Pro used to get noticeably warm when editing photos in the app and draining battery.

Editing some photos from today and it’s nowhere near as warm as it has been since using iOS 18.6 from the early betas.
 
3Rock said:
Restarted both my watch and my iPhone 16 Pro and make sure all settings were on and still a no go.
Click to expand...
Same things happened to me as well, but I double checked everything and tried a few minutes later and the watch started taking me through the tutorial.
 
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