iOS 26.4.1 ― Bug Fixes, Changes, and Improvements

[Banglazed]

iOS 26.4.1​

Release Date ― April 8, 2026
Build Number ― 23E254
Darwin Kernel Version ―

This update provides bug fixes for your iPhone

iOS 26.4 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 26 Release Notes
• iOS Beta Release Notes
• iOS Security Updates

Spoiler: Modem Firmware

• iPhone 17 series: 1.55.04
• iPhone Air: 2.04.03
• iPhone 16 series: 2.51.06
• iPhone 16e: 2.02.03
• iPhone 15 series: 3.50.07
• 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 - 66.5.1

Belgium

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

Brazil (info updated 26.4, 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 - 69.1
• Telus - 54.8.8
• Videotron - 53.0
• Virgin Mobile - 50.0

Denmark

• 3 DK - 46.7.11
• TDC 68.0
• Norlys 68.0

Finland

• DNA - 58.5.7

France

• Bouygues Telecom - 40.0
• Orange France - 63.0
• Free - 69.0
• SFR -

Germany

• Vodafone.de - 69.0 and RCS enabled
• Telekom.de - 69.1 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 - 68.0
• 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 - 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 - 67.5.1
• 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) -
• EE - 67.5.1
• Giffgaff (O2 MVNO) -
• iD Mobile (Three MVNO) - 69.0
• Lebara (Vodafone MVNO) - 67.5.1
• Lyca (EE MVNO) -
• Mozillion (EE MVNO) - 67.0
• O2-UK - 68.0
• Sky (O2 MVNO) - 68.0
• Three - 69.0
• Virgin Mobile (O2 MVNO) -
• Vodafone UK - 64.5.5

United States

• AT&T - 69.0
• Boost - 57.0
• Cricket - 60.5.5
• FirstNet - 55.0
• FirstNet (iPad) - 41.7.6
• Metro (TMO MVNO) - 68.0
• Spectrum (VZW MVNO) - 69.0
• T-Mobile - 69.0
• TracFone/Straight Talk/Walmart Family Mobile - 63.5
• U.S. Cellular - 46.7.24
• Ultra/Mint Mobile (TMO MVNO) - 69.0
• Verizon - 69.0.2
• Visible (VZW MVNO) - 69.0
• 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

 

[Maloney~888]

Never give up on a possible 21:00 hour drop UK time.

 

[ValerieDurden]

Installed so far so good.

 

[Broken Hope]

Should be for the cloudkit sync bug.

iCloud Sync not working with iPhon… | Apple Developer Forums

developer.apple.com

 

[Banglazed]

IPSW up

 

[AnInanimateCarbonRod]

No fix for Wi-Fi 7 on N1 chips, still only connecting at Wi-Fi 6E on my network.

 

[awp69]

Wake me up when Siri finally becomes useful.

 

[James6s]

Updated my iPhone 17 & all good! Nice to see iOS 26 getting better and better. Absolutely flying and smooth as heck 👌🏻😅

 

[Reeneman]

Wake me up when Siri finally becomes useful.

Ok, see you in September at earliest 😀

 

[s2mike]

Wow — suddenly Apple Watch shortcuts created in iOS now show up on my watch. Finally.

 

[gardiboy]

has the home screen animation swipe / jittery lag after swiping up from an app been resolved?

 

[ValerieDurden]

has the home screen animation swipe / jittery lag after swiping up from an app been resolved?

I want to say yes but I thought 26.4 fixed that but I was wrong, so far it’s smoother though fingers crossed it stays this way.

 

[GP-SE]

No fix for Wi-Fi 7 on N1 chips, still only connecting at Wi-Fi 6E on my network.

I've been experiencing this too with my Ubiquiti gear.

 

[elementalwingma]

It did fix me not receiving a fully charged application for my Apple Watch. Feels like just about every other update breaks it. 🙄

 

[chrfr]

I've been experiencing this too with my Ubiquiti gear.

If you enable MLO on your network, the phone should then connect via Wifi7. I suspect this is a Ubiquiti bug, not an Apple one.

 

[pw5a29]

No fix for Wi-Fi 7 on N1 chips, still only connecting at Wi-Fi 6E on my network.

Thought the issue only affecting the first beta1 build of 26.5?

 

[AnInanimateCarbonRod]

If you enable MLO on your network, the phone should then connect via Wifi7. I suspect this is a Ubiquiti bug, not an Apple one.

This is happening on my eero network as well, not just Ubiquiti. I don't normally run with MLO enabled but will give it a shot tonight when I can freely restart the network and see what happens. MLO isn't known to be super stable on eero.

Thought the issue only affecting the first beta1 build of 26.5?

It's supposedly fixed in 26.5 beta 1. I was hopeful Apple would have backported it.

 

[AnInanimateCarbonRod]

Enabling MLO didn’t change anything for me. Neither my iPhone or iPad with the N1 chip will connect beyond Wi-Fi 6E.

 

[ValerieDurden]

As of now this might be the most consistent iOS 26 update so far, performance is great but time will tell I’ll give it a day or two to really judge but I am liking it.

 

[James6s]

Had an app redraw when I first started using my iPhone 17 this morning. Performance and fluidity seem excellent on this update and even more impressive after the 26.4 improvements. App opening time and content loading are extremely quick.


Done my usual hard reset following a software update, plus I’ve enabled adaptive power mode for the first time in a long time to see if this has seen any improvements over the last few 26.x versions.

 

[s2mike]

Yep the phone feels very fast and fluid and smooth and responsive so far. Enjoyable to use.

 

[drak22]

It's not specific to this version, but it's still not fixed. I don't understand why certain app icons continue to display in light mode even though dark mode is selected. For example, PayPal shows the light icon on my iPhone, but on my iPad it shows the dark icon with the same settings. El Corte Inglés is another app that does the same. And I also have apps that appear light when the folder is closed, but turn dark when you open them. Apple has really messed up the icons in this regard, and I don't know how to fix it.

 

[James6s]

iPhone 17 having numerous app redraws on this version when coming out of apps etc

 

[Tomas1988]

So far, everything is fast and great on the 17 Pro Max

 

[MOM20xx]

iphone 14 pro apple account my daughter under 18 part of family sharing group did not geht stolen device protection enabled. this is still disabled.
my iphone 17 pro gets stolen device protection enabled after update.
does anyone else have such experience with stolen device protection?