iOS 27 Beta 1 ― Bug Fixes, Changes, and Improvements

[Banglazed]

iOS 27 Beta 1​

Release Date ― June 8, 2026
Build Number ― 24A5355q
Darwin Kernel Version ―

iOS 27 Beta 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 27 Release Notes
• iOS Beta Release Notes
• iOS Security Updates

Spoiler: Modem Firmware

• iPhone 17 series: 2.07.05
• iPhone Air: 3.00.32-1
• iPhone 16 series: 2.60.00
• iPhone 16e: 2.02.03
• iPhone 15 series: 4.01.05
• 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 26.5RC, 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 - 71.5.20
• 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 - 71.5.14
• Giffgaff (O2 MVNO) -
• iD Mobile (Three MVNO) - 71.5.11
• Lebara (Vodafone MVNO) -
• Lyca (EE MVNO) -
• Mozillion (EE MVNO) -
• O2-UK - 71.5.15
• Sky (O2 MVNO) - 71.5.15
• Three -
• Virgin Mobile (O2 MVNO) -
• Vodafone UK -
• Smarty (Three MVNO) -

United States

• AT&T - 70.0
• Boost - 57.0
• Cricket - 60.5.5
• FirstNet - 55.0
• FirstNet (iPad) - 41.7.6
• Metro (TMO MVNO) - 71.5.17
• 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 - 71.5.32
• 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

 

[Skylar.]

Downloading now. Only 4.99 GB on my 15 Plus. Let the fun begin!

 

[rgeiger97]

Is it ready for my daily driver yet?

 

[Skylar.]

Is it ready for my daily driver yet?

Only if safari is snappier.

 

[Sal09]

Downloading on my 16+. Leaving 17 Pro on iOS26.

 

[Sal09]

Battery is amazing. Extremely Happy.

2 days battery life on 16+.

 

[bamf-hacker]

Installing on my m5 iPad Pro now...

 

[gtmead09]

So did I understand right, Siri AI will be available later this year in beta in the USA? Alternately did it launch in the USA later this year for everyone?

 

[iCrow]

Ready with Apple Devices ?

 

[Channelsurfer63]

About 15 mins for my 16PM. My Ultra 2 watch will not permit the download to start until ios 27 has finished installing on my iphone

 

[Dave.Inwood1988]

If you don’t have the beta/developer account I believe so.

And 15.6gn on my 17PM

 

[dmccombs]

Hey Wait!!! All the Siri and AI functions they just announced aren't here yet. 🤣

 

[murad_fourth]

 

[christian.terra]

would like to see what apps "break," if any. Hopefully none!

 

[Simacca]

16 pro. Going to hold off for a bit and see if there are any phone breaking bugs.

 

[Sal09]

So did I understand right, Siri AI will be available later this year in beta in the USA? Alternately did it launch in the USA later this year for everyone?

 

[hasanahmad]

Lets go!

 

[Simacca]

View attachment 2636055

That’s for the public beta. Developers get to test it today.

 

[Brettka7]

WWDC26 addressed basically every complaint I had. Downloading dev beta 1 for the first time ever!

 

[FILIPSN007]

Battery life?

 

[Dj64Mk7]

Can we get an All The Little Things thread again this year?

 

[Sal09]

That’s for the public beta. Developers get to test it today.

Yes.

 

[Joseph C]

Siri AI looks to be available in the UK. yay

 

[gtmead09]

would like to see what apps "break," if any. Hopefully none!

There is a working / non working app thread in the new iOS 27 branch of the forum.

 

[sdfox7]

Remember that if you have an iOS 18 device that is compatible with iOS 27/iPadOS 27, and you upgrade 18 to the 27 beta, you may not be able to downgrade back to 18 since there is no full IPSW available.