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iOS 26.6 Beta 1 ― Bug Fixes, Changes, and Improvements

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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 said:

iOS 26.6 Beta 1​

Public Release Date ― May 26, 2026
Build Number ― 23G5028e
Darwin Kernel Version ― 25.6.0: Fri May 15 00:04:35 PDT 2026; root:xnu-12377.160.49.0.1~39/

iOS 26.5 Beta Release Notes

New Issues
Remaining Issues
Resolved Issues
Features
Additional Notes
  • iPhone 17 series: 1.70.00
  • iPhone Air: 2.05.04
  • iPhone 16 series: 2.60.00
  • iPhone 16e: 2.02.03
  • iPhone 15 series: 3.50.08
  • iPhone 14 series: 4.51.04
  • iPhone 13 series and iPhone SE (3rd gen): 5.51.02
  • iPhone 12 series: 5.10.01
  • iPhone 11 series, iPhone SE (2nd gen) and iPad Air (Cellular, 4th gen): 6.50.00
Australia
  • Optus - 64.5.8
  • Telstra - 64.5.13
  • Vodafone AU - 70.0
Belgium
  • BASE - 33.0
  • Orange B - 58
  • Proximus - 45.0
  • Telenet - 66.0
Brazil (info updated 26.5RC, last change in 26.5RC)
  • Claro Brasil - 70.0
  • Vivo - 70.0
  • TIM -
  • Oi - declared bankrupt in Nov 10th 2025
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 - 70.0
  • Telus - 54.8.8
  • Videotron - 53.0
  • Virgin Mobile - 50.0
Denmark
  • 3 DK - 46.7.11
  • TDC 69.5
  • Norlys 69.5
Finland
  • DNA - 58.5.7
France
  • Bouygues Telecom - 40.0
  • Orange France - 70.0
  • Free - 70.0
  • SFR -
Germany
  • Vodafone.de - 70.0 and RCS enabled
  • Telekom.de - 70.0 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 - 69.0 (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 - 70.0
  • Vodafone NL - 68.0
  • Odido - 68.0
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 - 70.0
  • Philippines Globe (iPad) - 38.0
  • Philippines Smart - 70.0
  • 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 - 70.0
  • DIGI ES - 54.8.4
  • Vodafone ES - 54.8.8
  • Movistar - 70.0
  • Yoigo - 70.0
Sweden
  • Comviq -
  • Tre - 31.0
Switzerland
  • Salt - 58.0
  • Sunrise - 70.0
  • Swisscom - 70.0
Turkey
  • Turkcell (Lifecell) - 36.5.5
  • Vodafone TR - 32.0
  • Turk Telekom - 32.0
United Kingdom
  • BT-UK (EE MVNO) -
  • EE - 70.0
  • Giffgaff (O2 MVNO) -
  • iD Mobile (Three MVNO) - 70
  • Lebara (Vodafone MVNO) - 67.5.1
  • Lyca (EE MVNO) -
  • Mozillion (EE MVNO) - 67.0
  • O2-UK - 69.5.2
  • Sky (O2 MVNO) - 69.5.1
  • Three - 69.0
  • Virgin Mobile (O2 MVNO) -
  • Vodafone UK - 64.5.5
  • Smarty (Three MVNO) - v70.0
United States
  • AT&T - 70.0
  • Boost - 57.0
  • Cricket - 60.5.5
  • FirstNet - 55.0
  • FirstNet (iPad) - 41.7.6
  • Metro (TMO MVNO) - 70.0
  • Spectrum (VZW MVNO) - 70.0
  • T-Mobile - 70.0
  • TracFone/Straight Talk/Walmart Family Mobile - 63.5
  • U.S. Cellular - 46.7.24
  • Ultra/Mint Mobile (TMO MVNO) - 64.5.16
  • Verizon - 70.0
  • Visible (VZW MVNO) - 70.0
  • Xfinity Mobile - 67.5.1
Other
  • Docomo - 32.5.10
  • AlwaysOnline -

Historical beta release chart

iOS Version History Chart

iOS version history chart
www.thinkybits.com www.thinkybits.com
Click to expand...
PLEASE FOR THE LOVE OF CHRIST, FIX THE CONSTANT CONTACTS ISSUE!! I’m sick of having to back date my iOS to get my contacts back. I have reported it HUNDREDS of times in the “feedback” app and NOT one single response to my messages! I have a business to run and not being able to see my contacts because there is a serious issue with the app is getting OLD!
 
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DjDanielWeaver said:
PLEASE FOR THE LOVE OF CHRIST, FIX THE CONSTANT CONTACTS ISSUE!! I’m sick of having to back date my iOS to get my contacts back. I have reported it HUNDREDS of times in the “feedback” app and NOT one single response to my messages! I have a business to run and not being able to see my contacts because there is a serious issue with the app is getting OLD!
Click to expand...

Contacts issue? Back date? What is this all about? First time I hear it, could you describe the issue?
 
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atton said:
Genuinely curious, how did this guy manage to analyse all this AND write up this article in such short time? Damn son
Click to expand...
Everyone’s favourite letters, say it with me: AI.
 

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idk why people aren’t happier about optimization updates.

This is setting things up for devs to make things compatible with whatever vision they have for OS27. Smart to go ahead and put these new binaries and structs in place now.

The only thing I hate dev’ing is tvOS apps and that’s primarily the struggle of making everything work around the remote with quality capture focus scenes. And that’s not Apples fault.
 
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ManuCH said:
FIX THE CONSTANT CONTACTS ISSUE!! I’m sick of having to back date my iOS to get my contacts back. I have reported it HUNDREDS of times in the “feedback” app and NOT one single response to my messages! I have a business to run and not being able to see my contacts because there is a serious issue with the app is getting OLD!
Click to expand...
ManuCH said:
Contacts issue? Back date? What is this all about? First time I hear it, could you describe the issue?
Click to expand...
I've also never come across this, but using a tool I did find this out:

This is a well-documented, ongoing iOS bug that's been plaguing users since at least iOS 18. After updating to iOS 18.6, many iPhone users noticed their contacts disappeared — for some only a handful remained, for others all names were gone leaving only phone numbers. Some users also lost their Apple Account picture and contact posters, and the problem affected people across different iPhone models, particularly those syncing via iCloud.


The technical root cause is typically an iOS indexing bug or authentication token failure. After an iOS update, the Contacts app needs to re-index data from iCloud and other accounts, and sometimes the "pointer" — the link telling the screen what to display — breaks. The contact data remains safe on the server, but nothing shows up on the phone. Major updates can also reset security tokens for third-party accounts like Google or Exchange.


Apple support escalated at least one user's inquiry to a supervisor who acknowledged that engineers are working on a solution and that an iOS update would be required to fix it. In the meantime, users report having to recreate contacts for people they've known for years, missing calls from unrecognized numbers, and losing email and mailing address data.


His workaround of downgrading iOS is a known (if painful) approach, and his frustration with the Feedback app going into a void is completely understandable — Apple doesn't respond individually to Feedback submissions, they just aggregate the data. The Apple Support Community thread on this has 483 "Me Too" votes as of late 2025, so he's far from alone.
 
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Skyuser said:
Read more carefully. Many of the updates are not security fixes, but actually security hardening. They are doing preventive work to make it even more difficult to hack an iPhone.

Software security works in layers; usually a single hole in one layer is not enough, you actually need to find multiple holes in multiple layers and somewhat connect them all together (a "chain" in security parlance) to have a successful exploit. That's why maintaining and hardening those layers is important.

Also, software written by human is known to have unintended bugs and flaws, especially complex software like an operating system. The important thing was that flaws are discovered and patched by the good guys before bad guys know them. AI like Mythos could accelerate this bug discovery process for both sides, that's why fixing things is urgent. It has nothing to do with the quality of software engineers. Even the best engineers money can buy are still people; and people make mistakes.
Click to expand...
You’re trying to explain something to someone who seems determined to complain.
 
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Brettka7 said:
View attachment 2632933

Any input here from the beta testers? I truly see zero difference with specular highlights in the screenshots. Haven’t hopped on beta yet because I want to backup to my Mac first with iOS 27 approaching.
Click to expand...
I don’t see any changes either.

The gleam around the icons are still there in 26.6 b1. I also feel it may use a bit of battery to show the effect, if so, we should be able to turn it off.
 
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ShawnyRHarvey said:
Anyone else get this message after updating to IOS 26.6?

View attachment 2632998
Click to expand...
I got it on 26.5 before I updated today. It’s because Alberta and British Columbia in Canada are no longer switching their clocks back like other parts of North America when DST ends later this year, it was recently approved. If other countries, provinces or territories did the same recently I’m sure it’s added as well.

I can’t find a way how to delete said update or to see if it’s installed. Anyone else find a way post update?
 
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Jakimo said:
I've also never come across this, but using a tool I did find this out:

This is a well-documented, ongoing iOS bug that's been plaguing users since at least iOS 18. After updating to iOS 18.6, many iPhone users noticed their contacts disappeared — for some only a handful remained, for others all names were gone leaving only phone numbers. Some users also lost their Apple Account picture and contact posters, and the problem affected people across different iPhone models, particularly those syncing via iCloud.


The technical root cause is typically an iOS indexing bug or authentication token failure. After an iOS update, the Contacts app needs to re-index data from iCloud and other accounts, and sometimes the "pointer" — the link telling the screen what to display — breaks. The contact data remains safe on the server, but nothing shows up on the phone. Major updates can also reset security tokens for third-party accounts like Google or Exchange.


Apple support escalated at least one user's inquiry to a supervisor who acknowledged that engineers are working on a solution and that an iOS update would be required to fix it. In the meantime, users report having to recreate contacts for people they've known for years, missing calls from unrecognized numbers, and losing email and mailing address data.


His workaround of downgrading iOS is a known (if painful) approach, and his frustration with the Feedback app going into a void is completely understandable — Apple doesn't respond individually to Feedback submissions, they just aggregate the data. The Apple Support Community thread on this has 483 "Me Too" votes as of late 2025, so he's far from alone.
Click to expand...

Interesting. My first instinct would be to check if the contacts are there in iCloud on the web. If yes, I'd disable contacts synchronization on the iPhone, delete all remaining/stale contacts, reboot and re-enable sync. I'm pretty sure this would fix it.

But then again, I never experienced this, so I'm not able to try.
 
DjDanielWeaver said:
PLEASE FOR THE LOVE OF CHRIST, FIX THE CONSTANT CONTACTS ISSUE!! I’m sick of having to back date my iOS to get my contacts back. I have reported it HUNDREDS of times in the “feedback” app and NOT one single response to my messages! I have a business to run and not being able to see my contacts because there is a serious issue with the app is getting OLD!
Click to expand...
Maybe don’t use beta software for your business?
 
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Fr this is why I'm so fed up rn. They act like we're renting our devices, not owning them outright.
They stop signing old IPSWs way too fast. You get barely a week to test a new OS, and by the time you notice it's slow, buggy, and breaks your favorite apps? The old versions are already unsigned. No going back.
 
Leonheartwang said:
Fr this is why I'm so fed up rn. They act like we're renting our devices, not owning them outright.
They stop signing old IPSWs way too fast. You get barely a week to test a new OS, and by the time you notice it's slow, buggy, and breaks your favorite apps? The old versions are already unsigned. No going back.
Click to expand...
That's why Beta Testing is useful, you can go back to the current public version and stay there if your essential apps break. Two phones, Beta Software, test, feed back, or blindly accept whatever Apple foist on us.
It sounds like you test your apps on public releases?
 
StumpyBloke said:
I am reading his post as he’s had this issue for a long time including full public releases. I might be wrong though.
Click to expand...
You may be right… but complaining so loudly on the beta thread seems odd. I hope he’s staying away from the betas since he “has a business to run.”

I’ve not heard of his issue and this “back-dating my device” workaround? (Maybe he means downgrading?) It’s hard to even look into something when a person comes in so hard like that.

As for his numerous feedback submissions, we’ve all been there. Best thing is to submit only the facts and leave the emotions out of it. Although since (and I’m just guessing here lacking any real specifics) that whatever is happening may be happening during the actual iOS upgrades. Contacts on device maybe? In a cloud service like google?
 
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