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iOS 17.6 ― Bug Fixes, Changes, and Improvements

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Banglazed

Banglazed

macrumors 603
Original poster
Apr 17, 2017
5,003
9,456
Cupertino, CA
iOS 17.6

Release Date ― July 29, 2024
Build Numbers ― 21G80
Darwin Kernel Version ―

This update provides important bug fixes and security updates and is recommended for all users.

iOS 17.6 RC Release Notes


New Features & Changes
New Issues
Remaining Issues
Resolved Issues

Additional Notes
How to install beta via OTA?
  1. Enable Beta Updates (Settings>General>Software Updates>Beta Updates)
  2. Check and sign into the right Apple ID to access beta
  3. Select which beta you would like to receive (Public/Developer)
  4. Hit "Back" and pull down to refresh
  5. Do an encrypted backup or iCloud backup before installing the beta from release build
  6. Install the beta
If you no longer wish to receive beta updates:
  1. Turn off the Beta Updates (you can also sign out of your Apple ID to unlink your developer account)
  2. Wait for the next public release or follow the guide below to install the IPSW release build
Troubleshoot: Sometimes, the beta update will not show so you may need to enable/disable Airplane Mode or restart your device before rechecking for update.

How to install beta via IPSW on Mac?
  1. You will need to install either Xcode beta or MobileDevice.pkg which can be extracted from the Xcode beta (tap with two finger or right click to Show Package Content>Contents>Resources>Packages>MobileDevice.pkg - this will work on older Macs that do not support the latest macOS or Xcode beta)
  2. Do an encrypted backup in Finder in case you need to restore your device
  3. Hold down Option + Check for Update and select the appropriate IPSW file for your device (whether you're updating to a newer/beta firmware, reinstalling the same firmware or downgrading to previous firmware while retaining all your data) downloaded from Apple using your free developer account. Note: You must have an active internet connection as it will check the IPSW signing status before it will proceed with the update.
  4. Enter your iPhone passcode once prompted to proceed.
Notes/Tips:
  • Always keep a backup in case you need to restore your data if you restore your device
  • It may be better to close all apps before installing the updates and/or turn off your device for about a minute or restart a few minutes after your device is updated
  • You can also manually select the IPSW if you are restoring your device using Option + Restore iPhone. Restore will wipe all your personal data which you will need to restore your backup either using iCloud backup or Finder/iTunes backup
  • You do not need to install the MobileDevice.pkg from each Xcode beta version unless Finder does not recognize the new iOS beta
  • There is no MobileDevice.pkg equivalent to iTunes for PC which would require a new iTunes to support new/beta iOS
  • If you receive a new iPhone, you can connect to Mac to update or restore your device to the latest iOS before setting up your device.
  • You can also use the Recovery Mode/DFU to update or restore your device by manually selecting IPSW
  • iPhone 15/Plus/Pro/Max: 1.70.02
  • iPhone 14/Plus/Pro/Max: 2.60.02
  • iPhone 13/mini/Pro/Max/SE (3rd gen): 3.50.04
  • iPhone 12/mini/Pro/Max: 4.50.06
  • iPhone 11/Pro/Max/SE (2nd gen)/iPad Air (4th gen): 5.00.00
  • iPhone XR/XS/Max: 6.00.00
Australia
  • Optus - 51.0
  • Telstra - 55.0
  • Vodafone AU - 51.0
Belgium
  • BASE - 33.0
  • Orange B - 58
  • Proximus - 45.0
  • Telenet - 44.1
Brazil (updated 17.5 RC)
  • Claro Brasil - 58.1
  • Vivo - 58.0
  • TIM -
  • Oi -
Canada
  • Bell - 58.0
  • Fido - 56.0
  • Fizz - 53.0
  • Freedom/Shaw Mobile - 54.8.6
  • Mint Mobile - 58.0
  • Public Mobile - 54.8.4
  • Rogers - 58.0
  • Telus - 54.8.8
  • Videotron - 53.0
  • Virgin Mobile - 50.0
Denmark
  • 3 DK - 46.7.11
  • TDC 58.0
  • Telia 58.0
France
  • Bouygues Telecom - 40.0
  • Orange France - 58.0
Germany
  • Vodafone.de - 58.0
  • Telekom.de - 56.0
  • O2-DE - 58.0
Greece:
  • Cosmote - 38.0
Guatemala
  • TIGO GT - 49.0
India
  • Airtel - 54.10
  • Jio - 54.10.2 (iPhone) and 54.8.4 (iPad)
  • Vi India (Vodafone Idea) - 54.0
Ireland
  • Eir - 33.5
  • Vodafone IE - 38.0
Mexico
  • AT&T - 57.0
  • Telcel - 57.6
Morocco
  • Orange - 50.0
Netherlands
  • KPN - 58.1
  • Vodafone NL - 45.0
Poland
  • T-Mobile -
  • Orange - 49.6.3 (Voice & SMS)
  • Play - 31.0
Portugal
  • Vodafone P - 40.0
Romania
  • Orange RO - 55.0
Slovakia
  • Orange SK - 57.6
Southeast Asia
  • Singapore Singtel -
  • Philippines Globe - 58.0
  • Philippines Globe (iPad) - 38.0
  • Philippines Smart - 58.0
  • 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 - 58.0.1
  • DIGI ES - 54.8.4
  • Vodafone ES - 54.8.8
  • Movistar - 58.0
Sweden
  • Comviq -
  • Tre - 31.0
Switzerland
  • Salt - 58.0
  • Sunrise - 57.0
  • Swisscom - 58.0
Turkey
  • Turkcell (Lifecell) - 36.5.5
  • Vodafone TR - 32.0
  • Turk Telekom - 32.0
United Kingdom
  • EE - 58.0
  • BT-UK (EE MVNO)-
  • Three - 58.0
  • iD Mobile (Three MVNO) - 58.0
  • O2-UK -
  • Giffgaff (O2 MVNO) -
  • Sky (O2 MVNO) -
  • Vodafone UK -
  • Virgin Mobile (EE MVNO) -
  • Lebara (Vodafone MVNO) -
United States
  • AT&T - 58.1
  • Boost - 57.0
  • Cricket - 58.0
  • FirstNet - 55.0
  • FirstNet (iPad) - 41.7.6
  • Metro (TMO MVNO) - 58.0
  • Spectrum (VZW MVNO) - 58.0
  • T-Mobile - 58.1
  • TracFone/Straight Talk/Walmart Family Mobile - 58.0
  • U.S. Cellular - 46.7.24
  • Ultra/Mint Mobile (TMO MVNO) - 58.0
  • Verizon - 58.0.1
  • Verizon (iPad) - 41.0
  • Visible (VZW MVNO) - 51.0.1
  • Xfinity Mobile - 57.6.1
Finland
  • DNA - 57.6
Other
  • Docomo - 32.5.10
  • AlwaysOnline -

Historical beta release chart

iOS Version History Chart

iOS version history chart
www.thinkybits.com www.thinkybits.com
 
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Reverend Benny

Reverend Benny

macrumors 65816
Apr 28, 2017
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925
Europe
Last edited:
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Populus

Populus

macrumors 603
Aug 24, 2012
5,835
8,308
Spain, Europe
Reverend Benny said:
Edit2: That is a pile of security fixes.
Click to expand...
Indeed it is, just like I expected. I guess unless the battery life is disastrous or there is a memory leak, updating to iOS 17.6 is highly recommended.

EDIT: seems like even today’s Monterey update, which is macOS 12.7.6, comes with a ton of security fixes, including one affecting APFS file system. Not bad for one of the last security updates of good old Monterey.
 
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Dwalls90

Dwalls90

macrumors 603
Feb 5, 2009
5,504
4,567
Reverend Benny said:
Still nothing on Apples site of what the update fixes.

Apple security releases - Apple Support

This document lists security updates and Rapid Security Responses for Apple software.
support.apple.com support.apple.com

Edit: Fixed

About the security content of iOS 17.6 and iPadOS 17.6 – Apple Support (UK)

This document describes the security content of iOS 17.6 and iPadOS 17.6.
support.apple.com support.apple.com

Edit2: That is a pile of security fixes.
Click to expand...
I think you answered my question - thanks!
 
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Reverend Benny

Reverend Benny

macrumors 65816
Apr 28, 2017
1,174
925
Europe
17.6 is available in Intune so was able to install it on mycompany phone (iphone 14) and also installed it on my iPad pro 11” M1.
Might be placebo or that the iPad had a restart when installing, but it feels smoother and more responsive that i remember it. Could be that I haven’t used it for a few weeks and forgotten how well it works.

Will wait for a day or two for my daily driver (13 pro) as I need confirmation that some apps are fully compatible with 17.6
 
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Heymily

Heymily

macrumors member
Apr 5, 2023
60
39
Europe
I've just installed it, so we'll see how it goes, but normally it should

In the update's list of patches, I spotted fixes for two security flaws that allowed access to tabs in private browsing without authentication, as well as to the hidden album in Photos (again, without Face ID) ; so like someone above, I'd highly recommend installing it!
 
M

mazdamiata210

macrumors 6502a
Sep 28, 2014
933
556
15 pro max... IPSW on Windows like I always do, and this time it "bricked" my phone. It failed 3/4 the way through the update and my phone was stuck on the apple logo. DFU restoring as I write this

Edit: I'm fairly familiar with restoring and such from back in the day of jailbreaking and how things worked... It took me 3 hours to get my phone back up and running. Multiple failed restores, different cords, different ports, different pc entirely. Once it was back on it would not activate, after multiple times I finally got it working by doing a full restore again, then resetting the phone via settings to remove the icloud lock, then restoring my backup... ugh!
 
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