iOS 26.4 Beta 3 ― Bug Fixes, Changes, and Improvements

[Banglazed]

iOS 26.4 Beta 3​

Release Date ― March 2, 2026
Build Number ― 23E5223f
Revised Release Date ― March 5, 2026
Revised Build Number ― 23E5223k
Darwin Kernel Version ― 25.4.0: Thu Feb 26 23:20:08 PST 2026; root:xnu-12377.100.630.502.1~1/RELEASE_ARM64_T8140

iOS 26.4 Beta 3 Release Notes

New Issues
Remaining Issues

• Redesigned App Store account panel doesn’t load in Lockdown Mode (since beta 1, carried over to betas 2 and 3)

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: 1.55.03
• iPhone Air: 2.02.03
• iPhone 16 series: 2.51.05
• iPhone 16e: 2.02.03
• iPhone 15 series: 3.50.06
• iPhone 14 series: 4.40.01
• iPhone 13 series and iPhone SE (3rd gen): 5.40.01
• 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 - 66.5.1

Belgium

• BASE - 33.0
• Orange B - 58
• Proximus - 45.0
• Telenet - 66.0

Brazil (info updated 26.4b3, last change in 26.4b2)

• Claro Brasil - 69.0
• Vivo - 69.0
• 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 - 69.0
• Telus - 54.8.8
• Videotron - 53.0
• Virgin Mobile - 50.0

Denmark

• 3 DK - 46.7.11
• TDC 68.5.1
• Norlys 68.5.1

Finland

• DNA - 58.5.7

France

• Bouygues Telecom - 40.0
• Orange France - 63.0
• Free - 68.0
• SFR -

Germany

• Vodafone.de - 69.0 RCS enabled, not encrypted
• Telekom.de - 67.5.3 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 - 68.0
• Philippines Globe (iPad) - 38.0
• Philippines Smart - 68.0
• 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 - 69.0
• DIGI ES - 54.8.4
• Vodafone ES - 54.8.8
• Movistar - 68.5.2
• Yoigo - 69.0

Sweden

• Comviq -
• Tre - 31.0

Switzerland

• Salt - 58.0
• Sunrise - 69.0
• Swisscom - 68.0

Turkey

• Turkcell (Lifecell) - 36.5.5
• Vodafone TR - 32.0
• Turk Telekom - 32.0

United Kingdom

• BT-UK (EE MVNO) - 69.0
• EE - 69.0
• Giffgaff (O2 MVNO) -
• iD Mobile (Three MVNO) - 68.0
• Lebara (Vodafone MVNO) - 67.5.1
• Lyca (EE MVNO) - 69.0
• Mozillion (EE MVNO) - 69.0
• O2-UK - 68.5.1
• Sky (O2 MVNO) - 68.5.1
• Three - 68.0
• Virgin Mobile (O2 MVNO) -
• Vodafone UK - 64.5.5

United States

• AT&T - 68.5.1
• Boost - 57.0
• Cricket - 60.5.5
• FirstNet - 55.0
• FirstNet (iPad) - 41.7.6
• Metro (TMO MVNO) - 69.0
• Spectrum (VZW MVNO) - 68.0
• T-Mobile - 68.0
• TracFone/Straight Talk/Walmart Family Mobile - 63.5
• U.S. Cellular - 46.7.24
• Ultra/Mint Mobile (TMO MVNO) - 64.5.16
• Verizon - 68.5.5
• Visible (VZW MVNO) - 68.0
• 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

 

[TL24]

Damn, beefy update coming from 26.4 B2, it's an 11.87GB update for my 17 Pro.

 

[arovik]

Damn, beefy update coming from 26.4 B2, it's an 11.87GB update for my 17 Pro.

Will they release the updated Siri for iPhone 17 only at first? Only 1,4 GB on my iPhone 15 pro

 

[Brettka7]

Can the beta testers here let us know if this Reduce Highlighting Effects setting has any apparent function in DB3?

If I can remove some of what I dislike about Liquid Glass, I will dive back into beta so fast.

 

[drak22]

Will they release the updated Siri for iPhone 17 only at first? Only 1,4 GB on my iPhone 15 pro

No, on my 17 Pro it's 1.86GB. Since iOS 26, the size of updates sometimes doesn't display correctly.

 

[Fraud Goblin]

Hopefully whatever was making the App Store act all slow was fixed.

 

[Broken Hope]

App Store is speedy again.

 

[jhuynh]

FindMy seems to be fixed on first check. Will keep an eye on it and report in a few hours.

EDIT: FindMy seems to do an auto refresh every 30 seconds while you're looking at the screen now.

 

[Hamsterhjulet]

Search bar is still placed at the top in App Store and Games but no other build in app. I hate the inconsistency.

 

[westerlu77]

I can’t call from favorite list, all calls are interupted and broken both on 26.4 beta 2 and now beta 3. Really annoying.

 

[iOSBry]

Hopefully whatever was making the App Store act all slow was fixed.

Now instant for me.

 

[Fraud Goblin]

Now instant for me.

First thing I noticed, it's great. I'm happy again.

 

[Hamsterhjulet]

New Emojis are here! Or at least they’ve made room for them…

 

[christian.terra]

I can’t call from favorite list, all calls are interupted and broken both on 26.4 beta 2 and now beta 3. Really annoying.

In unified or classic view? Working perfectly fine for me in unified view calling people in my favorites.

 

[Reeneman]

View attachment 2609134

Can the beta testers here let us know if this Reduce Highlighting Effects setting has any apparent function in DB3?

If I can remove some of what I dislike about Liquid Glass, I will dive back into beta so fast.

I will report. With Beta 2 I wasn’t able to see a difference with this setting. But letting the beta run on an base iPhone 13 with already reduced effects compared to newer phones.

 

[The Doctor11]

Does the gmail app for sending email again?

Is the horrific slowness of opening a link fixed?

 

[nortonandreev]

Feels snappier.

They’ve fixed the alignment.

 

[podycust]

Oh great my now iPad wants to confirm am over 18! Well my Apple is like at least 18 years 😂

 

[iLuddite]

View attachment 2609134

Can the beta testers here let us know if this Reduce Highlighting Effects setting has any apparent function in DB3?

If I can remove some of what I dislike about Liquid Glass, I will dive back into beta so fast.

I think it just makes subtler the highlighting effect when holding/moving finger over certain buttons and panels (such as the Apple Music search field or unified navigation bars) in the interface; seems more noticeable than in beta 2

 

[iOSBry]

Feels snappier.

They’ve fixed the alignment.

View attachment 2609144

Add money is still a smidge lower.

 

[westerlu77]

In unified or classic view? Working perfectly fine for me in unified view calling people in my favorites.

In both views. No difference.

 

[jdavid_rp]

Search bar is still placed at the top in App Store and Games but no other build in app. I hate the inconsistency.

I feel like installing the beta just to report this...

 

[d5aqoëp]

Finally enabled 6Ghz for Wifi7 use in India. My 17 Pro Max is latching on Band 37 of 6Ghz. Unfortunately, channel width is just 160Mhz which defeats the purpose of 6Ghz. But that is iPhone 17 series hardware limitation.

 

[Simacca]

1.84gb on my 16pro. Home screen swiping is back to being really smooth again.

Had the age check (uk), they used my Apple account details as proof.

 

[batrambo]

Added in Beta 3 for Australia