iOS 26.6 Beta 3 ― Bug Fixes, Changes, and Improvements

[Banglazed]

iOS 26.6 Beta 3​

Release Date ― June 29, 2026
Build Number ― 23G5052d
Darwin Kernel Version ―

iOS 26.6 Beta 2 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: 1.70.00
• iPhone Air: 2.05.04
• iPhone 16 series: 2.70.00
• 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

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
• 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]

IPSW is out

 

[roncron]

4.43gb on my 17 Pro.

Downloading & preparing took 9 minutes, installation took 3.

Getting incredible battery life so far. 😉

 

[sbailey4]

Wow only 2 posts? Alreighty then. Just updated. Who knows whats changed or better yet. Hopefully battery as mine has taken a hit with 26.6 it seems (maybe just the last beta). I never have any battery issues so not one of those who constantly complain about battery life. 🙂

 

[Miles Fu]

updated from B2, B3 make the phone warmer than B2.

My phone is ip 17

 

[Skylar.]

Only a handful of comments and it's been out for a day, wow.

EDIT: Misread the title and thought this was for iOS 27. My mistake. 🙂

 

[Cobold]

Only a handful of comments and it's been out for a day, wow.

You do know that there’s a new major version’s beta running, right?

 

[Skylar.]

You do know that there’s a new major version’s beta running, right?

I didn't realize it was 26, I read it as iOS 27 beta 3. My bad haha.

 

[cigz]

First day with this beta and unfortunately battery life doesn’t seem to be any better than previous. Wish I never updated from 26.3 🙃

At least it seems to be smooth.

 

[roncron]

First day with this beta and unfortunately battery life doesn’t seem to be any better than previous. Wish I never updated from 26.3 🙃

At least it seems to be smooth.

That sucks, I'm sorry.
But lucky for me, my battery on 26.3b3 is pretty good:

 

[cigz]

That sucks, I'm sorry.
But lucky for me, my battery on 26.3b3 is pretty good:

View attachment 2642110

Do you have regular 17 Pro or Max?
This looks like what I was getting on 26.3
Since 26.4 it went downhill

 

[roncron]

Do you have regular 17 Pro or Max?
This looks like what I was getting on 26.3
Since 26.4 it went downhill

17 Pro, not Max.

 

[tuntun]

iOS 26.6 Beta 3​

Release Date ― June 29, 2026
Build Number ― 23G5052d
Darwin Kernel Version ―

iOS 26.6 Beta 2 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:
• iOS 26 Overview
• iOS 26 Press Release
• iOS 26 Release Notes
• iOS Beta Release Notes
• iOS Security Updates

Spoiler: Modem Firmware

• iPhone 17 series: 1.70.00
• iPhone Air: 2.05.04
• iPhone 16 series: 2.70.00
• iPhone 16e: 2.02.03
• iPhone 15 series: 3.70.0
• 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 - 70.0
• 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

I posted Singtel and ip15 modem firmware. please update the lists @Banglazed

 

[Miles Fu]

I downgrade back to B2 from B3, phone becomes cooler

 

[gtmead09]

I downgrade back to B2 from B3, phone becomes cooler

Did you have a run away app? My iPhone 17 Pro is cool as a cucumber on this B3.