iOS 26.6 RC ― Bug Fixes, Changes, and Improvements

[Banglazed]

iOS 26.6 RC​

Release Date ― July 20, 2026
Build Number ― 23G71
Darwin Kernel Version ―

This update includes bug fixes, security updates and optimizes the Spotlight index to prepare for iOS 27.

iOS 26.6 Beta 5 Release Notes

New Issues
Remaining Issues
Resolved Issues
Features
Additional Notes

• Developers and testers can report bugs using the Feedback app. If you put your settings back on “None” for the betas, you can still open the app by entering the following URL in Safari:
  

  applefeedback://

• iOS 26 Overview
• iOS 26 Press Release
• iOS 26 Release Notes
• iOS Beta Release Notes
• iOS Security Updates

Spoiler: Modem Firmware

• iPhone 17 series: 1.70.01
• iPhone Air: 2.05.04
• iPhone 16 series: 2.70.01
• iPhone 16e: 2.02.03
• iPhone 15 series: 3.70.01
• 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

Spoiler: Carrier Version

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 26.6b1, 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 - 70.1 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 - 70.0
• 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 - 70.0.1
• 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

 

[cigz]

If anyone's interested with this release - the change log says that this release "optimizes Spotlight indexing in preparation for iOS 27."

 

[ValerieDurden]

So far so good, time will tell lol.

 

[James6s]

Updated my Air and the only comments for the moment are it’s fast & fluid lol

 

[ValerieDurden]

Updated my Air and the only comments for the moment are it’s fast & fluid lol

For now lol.

 

[James6s]

For now lol.

For now, yes! It’ll all fall apart again lol

 

[Lyons00]

For some reason, I’m not seeing it yet to update.
Thanks

 

[ValerieDurden]

For some reason, I’m not seeing it yet to update.
Thanks

Make sure you’re still on the public beta, I had no issues with it showing up coming from 26.5.2.

 

[pw5a29]

If anyone's interested with this release - the change log says that this release "optimizes Spotlight indexing in preparation for iOS 27."

probably do some groundwork first to avoid people getting 3 days of indexing when they first update to iOS 27, like people on beta 1 did

 

[ValerieDurden]

Seems like everyone moved onto 27 it’s dead here.

 

[ahmede]

System Data increased by 16GB

 

[James6s]

Seems like everyone moved onto 27 it’s dead here.

Yep, like a ghost town in here! I’ll be sticking with iOS 26 for a while longer. iOS 27 is showing promising signs of being a good software version, IMO it’s too early in the beta cycle to install on a main device.

 

[Blue Hawk]

Is it worth to update from the last final version already?

 

[James6s]

Is it worth to update from the last final version already?

Yes! Much improved over 26.5.2 on my Air

 

[ValerieDurden]

Is it worth to update from the last final version already?

I’d say yes.

 

[podycust]

probably do some groundwork first to avoid people getting 3 days of indexing when they first update to iOS 27, like people on beta 1 did

More like over a week!

 

[TwoBytes]

RC does NOT fix the overheating issue people are experiencing with the phone, doing nothing; or simple web browsing and it getting hot and so the battery drains faster.

I’m reading reports of this being fixed in iOS 27.

 

[yeahtyeaht]

This is a really good update. Performance is great and battery life got better than 26.5.2 for me

 

[James6s]

First full day with iOS 26.6 RC coming from the crap iOS 26.5.2 on my iPhone Air.

Performance is great, very snappy and fluid with no problems like lag & freezing etc that I experienced randomly on 26.5.2.

Idle and active battery is drain is noticeably improved.

Much better thermals, running cooler where iOS 26.5.2 would be running warm with the most basic tasks.

Solid update and about time!

 

[alfon_sico]

It’s just me or Favourites sleeve in phone app is missing? My favourites are up in the recent list calls but not show the Star icon below

Other issue since first beta 26.6 is not handoff continuity or airdrop discover with macOS 26.6

 

[ValerieDurden]

First full day with iOS 26.6 RC coming from the crap iOS 26.5.2 on my iPhone Air.

Performance is great, very snappy and fluid with no problems like lag & freezing etc that I experienced randomly on 26.5.2.

Idle and active battery is drain is noticeably improved.

Much better thermals, running cooler where iOS 26.5.2 would be running warm with the most basic tasks.

Solid update and about time!

Still getting Home Screen lag, Apple is really trash at this point lol, the regret of buying the latest flagship.

 

[sjsharksfan12]

Seems like everyone moved onto 27 it’s dead here.

This is where I do kinda miss reddit. Get back on Iphone, excited to talk about it and this forum is really just dead. I'm still getting used to Liquid Glass and it's actually not as bad as what was shown at last year's WWDC.