Delve into the world of built-in app and system services available to developers. Discuss leveraging these services to enhance your app's functionality and user experience.

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TextEdit Behaving Odd on Big Sur Update
Hi, I'm an avid user of TextEdit to keep track of my thoughts and To-Do's through my work day. The result is, I end up with a fairly long text file, but not big on size in terms of storage. After updating to Big Sur 11.0.1, I'm noticing an odd behaviour. When every I press [Delete] more than thrice, the scroll bar jumps to the top of the text, i.e. the first line in the text file. This is very frustrating, especially, when you have lot of text and it scrolls all the way to the top. The only solution I have found is to press [Delete] slowly (may be one character per second) to avoid the scroll bar jumping to the first line of the text file. Also noticed, it does not happen in a full sentence, but only when when there's a short word and a line break [Enter] above and below the word. I'm continuing with the same file I had saved on Catalina and never had this issue. Looks like a bug to me. [PS: I am a user experience designer, not a developer and only have minimal knowledge of coding. ] Thanks, Anish
68
2
17k
Nov ’22
Bug: Screen Time (iOS 18 Developer Beta 1)
Hey, So I obviously downloaded the dev beta the second I could, and I didn’t notice any bugs. Except after the first reboot, the new Screen Time settings UI is replaced by the old one (see video below). This also has an effect on Remote Screen Time Management somehow, making any change (Downtime, App limit, etc) from the guardian’s device over the internet (as in not directly on the managed phone) not take effect at all. Rebooting does nothing, connecting to wifi does nothing, everything. I reported this to the Feedback Assistant so hopefully they catch wind of this soon. Anyone else experiencing this bug or does anyone have a workaround? Reply if so. Thanks, Mr. Sharky
63
45
17k
Jun ’24
iPhone 13 pro Apple CarPlay crashing as soon as music plays (Apple Music)
Hi. I just setup my iPhone 13 yesterday. I went to go somewhere, plugged in my phone with Apple carplay (I have a 2020 Honda Civic, same head unit from 2016-2021). It connects fine, but I soon as I go to play music, it crashes. My head unit says something along the lines of it’s not compatible. I tried everything from hard reset and resetting the head unit, nothing works. Tried looking it all my settings both iPhone and head unit, nothing works at all. I need help asap. Paid a lot of money for this phone and I’m very disappointed. RUNNING IOS 15
48
1
22k
Sep ’22
Could not launch app on watchOS downloaded from TestFlight
I have a app that has both mobile and watch versions. Recently some testers report that the watch app could not be launched if the put the app in the background and then resume. And if they kill the app and try to launch again, there is no any response when tapping the app icon. I managed to export some system logs by installing a sysdiagnose profile, and this info looks suspicious
43
5
3.7k
May ’26
Can't add card to search ads
So as Apple has just released their Search Advertising network I tried to set up my account but I'm encountering this error when trying to add my visa credit card (all correct details) "Error saving credit card information. Try again later." Does anyone else have this issue or know how it can be fixed?
55
1
24k
Mar ’22
Speech Recognition Problem in iOS 18.0
It looks like Apple has added some new API(s) to SFSpeechRecognition My app, which is currently listed on App Store does feature speech recognition. Yet, trying to use it under iOS 18.0 throws errors: -[SFSpeechRecognitionTask localSpeechRecognitionClient:speechRecordingDidFail:]_block_invoke Ignoring subsequent local speech recording error: Error Domain=kAFAssistantErrorDomain Code=1101 "(null)" What happens is that after several words are transcribed and displayed, the next sentence results in previous words disappearance. That's probably what that portion of the error text - "Ignoring subsequent local speech recording error: Error Domain=kAFAssistantErrorDomain Code=1101 "(null)" means. The problem occurs ONLY when the app is running under iOS 18.0 Even when it's compiled in Xcode 16.0 using iOS 17.5 everything works fine. Any suggestions?
40
9
9.9k
Oct ’25
CallKit does not activate audio session with higher probability after upgrading to iOS 18.4.1
Hi, We've noticed that this issue occurs more frequently after upgrading to iOS 18.4.1 and can result in one-way audio. Our app uses CallKit with WebRTC to establish VoIP connections. However, on iOS 18.4.1, CallKit no longer triggers: func provider(_ provider: CXProvider, didActivate audioSession: AVAudioSession) We're currently comparing the occurrence rate across different iOS versions to better understand the impact. Could you please help analyze the root cause of this issue?
40
1
5.7k
Sep ’26
Screen Time Crash. IOS 18 Dev Beta 1
I have experienced a consistent bug with screen time in IOS 18 DB1. It just doesn’t work, but the limits still function. I cannot access screen time settings (it just crashes) nor can I disable screen time from within a blocked app itself. Have not found any workaround. I have logged a feedback report, FB13932765 (Unable to open screen time settings, it just crashes) I Hope this can be looked at and resolved by the next update. Thanks, Felix
39
52
8.8k
Jun ’24
NFC Tags won't read after iOS 15.4 update
After updating to iOS 15.4 I can no longer read any NFC tags. I believe Apple Pay is working fine. Replication: Unlock iPhone, hold NFC tag to top back of phone (without case or other magnetic or metallic materials nearby). Default iOS behaviour should be to read the contents of a known working tag (works perfectly on an Android device) and display a popup to manage the tag information (e.g. Popup would ask permission to open Safari to open a web link programmed on a tag) 3rd Party Tools: Previous versions of iOS 15 beta allowed read and write of NFC tags using apps such as NFC and NFC Tools. I have used "normal" mode, compatibility mode, have attempted to (re)format the tag to no avail. When conducting a read or write using these tools a popup appears, but no tag can be read or written. "Ready to Scan" popup remains open. Further steps taken: Hard Reset: No effect
37
4
44k
Jun ’23
Widgets not working with TestFlight since Xcode 12 beta 3
I have noticed a strange problem today. I have uploaded a build of my app to TestFlight for internal testing using Xcode 12 beta 3. The app has widgets and if I run the app locally from Xcode widgets are working on device. However, when I install a beta from TestFlight the widgets are not suggested by iOS and I can see in the logs that the widgets are actually crashing (something is going on with WidgetKit in the crash logs). This has started only with beta 3, I have previously used TestFlight with widgets in beta 1 and beta 2. Does anyone else have this problem? My feedback number is FB8122742.
36
0
18k
Oct ’22
Debugging WidgetKit install error "Failed to get descriptors for extensionBundleID"
I'm trying to create an iOS 14 WidgetKit widget. It's compiling, but when I try to run it, on either simulator or device, I get the error below: Any suggestions on how to debug this? Details SendProcessControlEvent:toPid: encountered an error: Error Domain=com.apple.dt.deviceprocesscontrolservice Code=8 "Failed to show Widget 'com.myapp.dev.WidgetKitExtension' error: Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)}." UserInfo={NSLocalizedDescription=Failed to show Widget 'com.myapp.dev.WidgetKitExtension' error: Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)}., NSUnderlyingError=0x7fc0b0d12540 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)}}} Domain: DTXMessage Code: 1- System Information macOS Version 10.15.5 (Build 19F101) Xcode 12.0 (17177)
35
0
26k
Dec ’23
Developer APIs for AirTag integration in our apps and games?
I'm very excited about the new AirTag product and am wondering if there will be any new APIs introduced in iOS 14.5+ to allow developers to build apps around them outside the context of the Find My network? The contexts in which I am most excited about using AirTags are: Gaming Health / Fitness-focused apps Accessibility features Musical and other creative interactions within apps I haven't been able to find any mention of APIs. Thanks in advance for any information that is shared here. Alexander
35
4
33k
Aug ’23
iOS 17.4.1 Safari extension issues
Since updating to iOS v17.4.1 our safari extension no longer functions as it used to We are experiencing issues where our content script is not getting initialized, On devices running iOS 17.4.1, the content script included in our extension does not appear to run. There are no logs from the content script in the console, whereas on other versions and devices, it operates as expected. Our Extension relies con communication between the background and content scripts in order for us to render various popups to our users, based on our logs as of iOS 17.4.1 this communication is not successful, we can see messages being sent from the background script but as mentioned above nothing on the content script side. This behavior happens majority of the time and on random sites, sometimes opening the same site in a new tab would work but not always. There are also times where we would only receive our popups after opening the safari menu and interacting with our extension via this menu. Please assist with a way forward
34
14
7.1k
Sep ’24
AirPlay Issues Since Switching to Big Sur on MacBook Pro
AirPlay seems to have been wiped out on my MacBook Pro since the move to Big Sur...The icon was no longer saved in the toolbar, so I went to the widgets to find it. Instead of saying "AirPlay" there was "Screen Mirroring" which was odd since screenshots online from other users still shows AirPlay. AirPlay worked just fine on my MacBook Pro before using Big Sur and it still works perfectly on both Apple TVs I have when I use my iPhone. This leads me to believe it might have to do with the upgrade since only my MacBook Pro is having this issue. I ended up calling Apple Support and spent over 3 hours troubleshooting the issue, but no solution yet. Spoke to 3 different techs and it seems like none of them have seen this issue before. I've been patient since I know Big Sur is new, but this is a bit frustrating to say the least. I've restarted my router, both Apple TVs, my MacBook Pro (multiple times each), and still no fix. The screen mirroring does not work, since the AirPlay display in System Preferences keeps switching to "Off" immediately after clicking which Apple TV I want to use it for. I've also made sure the network names match up, so I'm running out of ideas. Does anyone have any advice? I appreciate any help I can get. Thank you.
33
1
28k
Feb ’23
Tokens change without reason after updating to iOS 17.5.1
Some of our users encounter an issue after updating their iPhone/iPad to iOS 17.5.1. The tokens passed in the Shield Configuration extension don't match the tokens they selected in my app using the FamilyPicker before updating to iOS 17.5.1. It seems the tokens changed for no reason. My app can't match the token from the ShieldConfigurationDataSource to any tokens stored on my end, causing my shield screens to turn blank. The same applies to tokens in the Device Activity Report extension. The only workaround I've found is to tell affected users to unselect and reselect apps and websites to block in my app. This gets them new tokens from the FamilyActivityPicker, which solves the issue. However, for some users, the bug reoccurs a few days later. Tokens seem to change again, causing the same issue in the Shield Configuration extension. I am not able to reproduce the issue on my test devices so I have no sysdiagnose to attach. However, this issue is affecting other screen time apps: https://developer.apple.com/forums/thread/732845 https://forums.developer.apple.com/forums/thread/756440 FB14082790 FB14111223 A change in iOS 17.5.1 must have triggered this behaviour. Could an Apple engineer give us any updates on this?
32
7
5.5k
May ’26
iOS 26.2 RC DeviceActivityMonitor.eventDidReachThreshold regression?
Hi there, Starting with iOS 26.2 RC, all my DeviceActivityMonitor.eventDidReachThreshold get activated immediately as I pick up my iPhone for the first time, two nights in a row. Feedback: FB21267341 There's always a chance something odd is happening to my device in particular (although I can't recall making any changes here and the debug logs point to the issue), but just getting this out there ASAP in case others are seeing this (or haven't tried!), and it's critical as this is the RC. DeviceActivityMonitor.eventDidReachThreshold issues also mentioned here: https://developer.apple.com/forums/thread/793747; but I believe they are different and were potentially fixed in iOS 26.1, but it points to this part of the technology having issues and maybe someone from Apple has been tweaking it.
31
8
7.8k
Aug ’26
TextEdit Behaving Odd on Big Sur Update
Hi, I'm an avid user of TextEdit to keep track of my thoughts and To-Do's through my work day. The result is, I end up with a fairly long text file, but not big on size in terms of storage. After updating to Big Sur 11.0.1, I'm noticing an odd behaviour. When every I press [Delete] more than thrice, the scroll bar jumps to the top of the text, i.e. the first line in the text file. This is very frustrating, especially, when you have lot of text and it scrolls all the way to the top. The only solution I have found is to press [Delete] slowly (may be one character per second) to avoid the scroll bar jumping to the first line of the text file. Also noticed, it does not happen in a full sentence, but only when when there's a short word and a line break [Enter] above and below the word. I'm continuing with the same file I had saved on Catalina and never had this issue. Looks like a bug to me. [PS: I am a user experience designer, not a developer and only have minimal knowledge of coding. ] Thanks, Anish
Replies
68
Boosts
2
Views
17k
Activity
Nov ’22
Bug: Screen Time (iOS 18 Developer Beta 1)
Hey, So I obviously downloaded the dev beta the second I could, and I didn’t notice any bugs. Except after the first reboot, the new Screen Time settings UI is replaced by the old one (see video below). This also has an effect on Remote Screen Time Management somehow, making any change (Downtime, App limit, etc) from the guardian’s device over the internet (as in not directly on the managed phone) not take effect at all. Rebooting does nothing, connecting to wifi does nothing, everything. I reported this to the Feedback Assistant so hopefully they catch wind of this soon. Anyone else experiencing this bug or does anyone have a workaround? Reply if so. Thanks, Mr. Sharky
Replies
63
Boosts
45
Views
17k
Activity
Jun ’24
iPhone 13 pro Apple CarPlay crashing as soon as music plays (Apple Music)
Hi. I just setup my iPhone 13 yesterday. I went to go somewhere, plugged in my phone with Apple carplay (I have a 2020 Honda Civic, same head unit from 2016-2021). It connects fine, but I soon as I go to play music, it crashes. My head unit says something along the lines of it’s not compatible. I tried everything from hard reset and resetting the head unit, nothing works. Tried looking it all my settings both iPhone and head unit, nothing works at all. I need help asap. Paid a lot of money for this phone and I’m very disappointed. RUNNING IOS 15
Replies
48
Boosts
1
Views
22k
Activity
Sep ’22
Could not launch app on watchOS downloaded from TestFlight
I have a app that has both mobile and watch versions. Recently some testers report that the watch app could not be launched if the put the app in the background and then resume. And if they kill the app and try to launch again, there is no any response when tapping the app icon. I managed to export some system logs by installing a sysdiagnose profile, and this info looks suspicious
Replies
43
Boosts
5
Views
3.7k
Activity
May ’26
Can't add card to search ads
So as Apple has just released their Search Advertising network I tried to set up my account but I'm encountering this error when trying to add my visa credit card (all correct details) "Error saving credit card information. Try again later." Does anyone else have this issue or know how it can be fixed?
Replies
55
Boosts
1
Views
24k
Activity
Mar ’22
Speech Recognition Problem in iOS 18.0
It looks like Apple has added some new API(s) to SFSpeechRecognition My app, which is currently listed on App Store does feature speech recognition. Yet, trying to use it under iOS 18.0 throws errors: -[SFSpeechRecognitionTask localSpeechRecognitionClient:speechRecordingDidFail:]_block_invoke Ignoring subsequent local speech recording error: Error Domain=kAFAssistantErrorDomain Code=1101 "(null)" What happens is that after several words are transcribed and displayed, the next sentence results in previous words disappearance. That's probably what that portion of the error text - "Ignoring subsequent local speech recording error: Error Domain=kAFAssistantErrorDomain Code=1101 "(null)" means. The problem occurs ONLY when the app is running under iOS 18.0 Even when it's compiled in Xcode 16.0 using iOS 17.5 everything works fine. Any suggestions?
Replies
40
Boosts
9
Views
9.9k
Activity
Oct ’25
CallKit does not activate audio session with higher probability after upgrading to iOS 18.4.1
Hi, We've noticed that this issue occurs more frequently after upgrading to iOS 18.4.1 and can result in one-way audio. Our app uses CallKit with WebRTC to establish VoIP connections. However, on iOS 18.4.1, CallKit no longer triggers: func provider(_ provider: CXProvider, didActivate audioSession: AVAudioSession) We're currently comparing the occurrence rate across different iOS versions to better understand the impact. Could you please help analyze the root cause of this issue?
Replies
40
Boosts
1
Views
5.7k
Activity
Sep ’26
Screen Time Crash. IOS 18 Dev Beta 1
I have experienced a consistent bug with screen time in IOS 18 DB1. It just doesn’t work, but the limits still function. I cannot access screen time settings (it just crashes) nor can I disable screen time from within a blocked app itself. Have not found any workaround. I have logged a feedback report, FB13932765 (Unable to open screen time settings, it just crashes) I Hope this can be looked at and resolved by the next update. Thanks, Felix
Replies
39
Boosts
52
Views
8.8k
Activity
Jun ’24
NFC Tags won't read after iOS 15.4 update
After updating to iOS 15.4 I can no longer read any NFC tags. I believe Apple Pay is working fine. Replication: Unlock iPhone, hold NFC tag to top back of phone (without case or other magnetic or metallic materials nearby). Default iOS behaviour should be to read the contents of a known working tag (works perfectly on an Android device) and display a popup to manage the tag information (e.g. Popup would ask permission to open Safari to open a web link programmed on a tag) 3rd Party Tools: Previous versions of iOS 15 beta allowed read and write of NFC tags using apps such as NFC and NFC Tools. I have used "normal" mode, compatibility mode, have attempted to (re)format the tag to no avail. When conducting a read or write using these tools a popup appears, but no tag can be read or written. "Ready to Scan" popup remains open. Further steps taken: Hard Reset: No effect
Replies
37
Boosts
4
Views
44k
Activity
Jun ’23
Widgets not working with TestFlight since Xcode 12 beta 3
I have noticed a strange problem today. I have uploaded a build of my app to TestFlight for internal testing using Xcode 12 beta 3. The app has widgets and if I run the app locally from Xcode widgets are working on device. However, when I install a beta from TestFlight the widgets are not suggested by iOS and I can see in the logs that the widgets are actually crashing (something is going on with WidgetKit in the crash logs). This has started only with beta 3, I have previously used TestFlight with widgets in beta 1 and beta 2. Does anyone else have this problem? My feedback number is FB8122742.
Replies
36
Boosts
0
Views
18k
Activity
Oct ’22
Debugging WidgetKit install error "Failed to get descriptors for extensionBundleID"
I'm trying to create an iOS 14 WidgetKit widget. It's compiling, but when I try to run it, on either simulator or device, I get the error below: Any suggestions on how to debug this? Details SendProcessControlEvent:toPid: encountered an error: Error Domain=com.apple.dt.deviceprocesscontrolservice Code=8 "Failed to show Widget 'com.myapp.dev.WidgetKitExtension' error: Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)}." UserInfo={NSLocalizedDescription=Failed to show Widget 'com.myapp.dev.WidgetKitExtension' error: Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)}., NSUnderlyingError=0x7fc0b0d12540 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.myapp.dev.WidgetKitExtension)}}} Domain: DTXMessage Code: 1- System Information macOS Version 10.15.5 (Build 19F101) Xcode 12.0 (17177)
Replies
35
Boosts
0
Views
26k
Activity
Dec ’23
Developer APIs for AirTag integration in our apps and games?
I'm very excited about the new AirTag product and am wondering if there will be any new APIs introduced in iOS 14.5+ to allow developers to build apps around them outside the context of the Find My network? The contexts in which I am most excited about using AirTags are: Gaming Health / Fitness-focused apps Accessibility features Musical and other creative interactions within apps I haven't been able to find any mention of APIs. Thanks in advance for any information that is shared here. Alexander
Replies
35
Boosts
4
Views
33k
Activity
Aug ’23
iOS 17.4.1 Safari extension issues
Since updating to iOS v17.4.1 our safari extension no longer functions as it used to We are experiencing issues where our content script is not getting initialized, On devices running iOS 17.4.1, the content script included in our extension does not appear to run. There are no logs from the content script in the console, whereas on other versions and devices, it operates as expected. Our Extension relies con communication between the background and content scripts in order for us to render various popups to our users, based on our logs as of iOS 17.4.1 this communication is not successful, we can see messages being sent from the background script but as mentioned above nothing on the content script side. This behavior happens majority of the time and on random sites, sometimes opening the same site in a new tab would work but not always. There are also times where we would only receive our popups after opening the safari menu and interacting with our extension via this menu. Please assist with a way forward
Replies
34
Boosts
14
Views
7.1k
Activity
Sep ’24
AirPlay Issues Since Switching to Big Sur on MacBook Pro
AirPlay seems to have been wiped out on my MacBook Pro since the move to Big Sur...The icon was no longer saved in the toolbar, so I went to the widgets to find it. Instead of saying "AirPlay" there was "Screen Mirroring" which was odd since screenshots online from other users still shows AirPlay. AirPlay worked just fine on my MacBook Pro before using Big Sur and it still works perfectly on both Apple TVs I have when I use my iPhone. This leads me to believe it might have to do with the upgrade since only my MacBook Pro is having this issue. I ended up calling Apple Support and spent over 3 hours troubleshooting the issue, but no solution yet. Spoke to 3 different techs and it seems like none of them have seen this issue before. I've been patient since I know Big Sur is new, but this is a bit frustrating to say the least. I've restarted my router, both Apple TVs, my MacBook Pro (multiple times each), and still no fix. The screen mirroring does not work, since the AirPlay display in System Preferences keeps switching to "Off" immediately after clicking which Apple TV I want to use it for. I've also made sure the network names match up, so I'm running out of ideas. Does anyone have any advice? I appreciate any help I can get. Thank you.
Replies
33
Boosts
1
Views
28k
Activity
Feb ’23
Tokens change without reason after updating to iOS 17.5.1
Some of our users encounter an issue after updating their iPhone/iPad to iOS 17.5.1. The tokens passed in the Shield Configuration extension don't match the tokens they selected in my app using the FamilyPicker before updating to iOS 17.5.1. It seems the tokens changed for no reason. My app can't match the token from the ShieldConfigurationDataSource to any tokens stored on my end, causing my shield screens to turn blank. The same applies to tokens in the Device Activity Report extension. The only workaround I've found is to tell affected users to unselect and reselect apps and websites to block in my app. This gets them new tokens from the FamilyActivityPicker, which solves the issue. However, for some users, the bug reoccurs a few days later. Tokens seem to change again, causing the same issue in the Shield Configuration extension. I am not able to reproduce the issue on my test devices so I have no sysdiagnose to attach. However, this issue is affecting other screen time apps: https://developer.apple.com/forums/thread/732845 https://forums.developer.apple.com/forums/thread/756440 FB14082790 FB14111223 A change in iOS 17.5.1 must have triggered this behaviour. Could an Apple engineer give us any updates on this?
Replies
32
Boosts
7
Views
5.5k
Activity
May ’26
iOS 26.2 RC DeviceActivityMonitor.eventDidReachThreshold regression?
Hi there, Starting with iOS 26.2 RC, all my DeviceActivityMonitor.eventDidReachThreshold get activated immediately as I pick up my iPhone for the first time, two nights in a row. Feedback: FB21267341 There's always a chance something odd is happening to my device in particular (although I can't recall making any changes here and the debug logs point to the issue), but just getting this out there ASAP in case others are seeing this (or haven't tried!), and it's critical as this is the RC. DeviceActivityMonitor.eventDidReachThreshold issues also mentioned here: https://developer.apple.com/forums/thread/793747; but I believe they are different and were potentially fixed in iOS 26.1, but it points to this part of the technology having issues and maybe someone from Apple has been tweaking it.
Replies
31
Boosts
8
Views
7.8k
Activity
Aug ’26