Overview

Subject: Inquiry Regarding Architectural Overhead and Buffer Access in the Push to Talk Framework for Real-Time Core ML Blind Source Separation Dear Apple Engineering Team, We are currently developing an Apple-native communication platform that utilizes the Push to Talk framework alongside Core ML to handle real-time, on-device audio processing. We are working to resolve the issue of single-channel, co-channel interference (overlapping voice streams) directly on the edge. Our current challenge lies in the pipeline latency and background lifecycle constraints when intercepting incoming audio buffers. To cleanly separate overlapping voices before they hit the audio output mixer, we need to process the raw PCM data immediately upon arrival. Could you please provide guidance on the following architectural questions: Low-Latency Buffer Interception: What is the recommended design pattern within the PTChannelManagerDelegate flow to pass raw incoming audio buffers directly to a Core ML model running on the Apple Neural Engine (ANE) before the system routes them to AVAudioEngine for playback? Background Thread Management: Given the strict background execution boundaries enforced by the Push to Talk framework, how can we best optimize thread scheduling to ensure our speech separation model completes its execution without triggering an OS background processing timeout or process termination? Dynamic UI Manifestation: Once a combined audio stream is separated into two clean, distinct voice vectors on-device, what is the best approach for registering multiple PTParticipant states simultaneously so that the native system UI (like the Dynamic Island) accurately reflects both speakers? Thank you for your time, insights, and continued support of developer innovation within the iOS and iPadOS ecosystems. Best regards, Ken Zakreski Founder, Marine Link Pro

I often struggle to see my own log data with the heavy stream of CloudKit updates. Is there an easy way to filter that our or turn it on/off?

Hi there, we deploy upwards of 12-15 hardware accessories containing BLE at a time, in a single system instal. Can AccessorySetupKit be used to streamline the pairing process for all of these accessories at once, so that the user isn't required to step through the process of pairing with each individual accessory?

Hello, does anyone have experience using Apple Vision Pro in countries where it has not yet been officially released? I work for a company in Austria, and we are interested in developing internal XR applications for Vision Pro. Since the device is not officially available in Austria, we are considering purchasing it in Germany. My main question is whether it is possible to develop and test Vision Pro apps using an Austrian Apple ID / developer account, or if there are any regional restrictions we should be aware of (e.g., related to App Store access, provisioning, or device functionality). Apple Support was unfortunately unable to provide a definitive answer and recommended asking here. Any insights or experiences would be greatly appreciated. Best regards, Don Appelonie

I’d like the ability to detect a users security role. This makes sense for detecting the roles assigned to named users for enabling workflows within an app. For example, user generated content and “moderators”. Instead of building an unlisted app, I’d prefer to just check permissions against the user. As a workaround, one could create record types with the same “security role” as the moderator actions, but to attempt to fetch a dummy record seems fragile and inefficient. FB9638492 (CloudKit: API to detect provided security role on current user)

Why voice processing enabled on AVAudioInputNode makes output audio noticable lower than without it and how to overcome it using voice processing enabled

My queries are failing in an unusual way. I can query 4 out of 5 Record Types. The 5th fails from the app (CKQueryOperation) and, surprisingly, also from the CloudKit Dashboard. It returns only 100-300 records when it should return over 4000. Tapping "Query Records" returns an additional 100-300 records. Apple Developer Technical Support has suggested that the issue involves the index of the container and wrote that only the CloudKit Team can fix it. So my question is - How do I get the CloudKit Team to fix it????

Throughout the years I've done a few integrations at my company with an iOS Application and an identity provider. I've implemented samples with UIWebView, WKWebview, Certificate based authentication through custom URLSession implementations and lastly through ASWebAuthentication. Also I gave the SSO Extension a try, but got stuck at some point (also Apple Forum didn't give me some solution -> https://developer.apple.com/forums/thread/117747) I'm having troubles digging through the Apple resources to find the best approach for big enterprises. We make use of a MDM solution, so I was hoping to find means to 'exploit it' and don't implement any custom authenticationframework anymore. Also, granting SSO between Apps and websites is what my ideal goal would be. Could you point me to some resources that can help me or give me some guidance on which of the frameworks/SDKs to use?

Moved to WWDC26 iCloud & CloudKit Q&A: https://developer.apple.com/forums/thread/830698

I have been waiting for both of these going on 24 hours with nothing happening

We are deploying Platform SSO using the Secure Enclave authentication method. However, users are still being prompted for their username and password during registration. This undermines our goal of going passwordless and is causing deployment friction with customers. Once the Secure Enclave method is deployed and initialized, is there a way to suppress or skip this password dialog so users only authenticate via hardware/biometrics?

Hello, I created an app using the latest version of Xcode (16.2), and I'm having a problem testing this app on my iPhones. I created this app just like all the others I've made for my clients, including one on (03/24/25), but when I went to upload another App to App Store Connect on (03/26/25) I couldn't test it on my phone. Points to consider: The app runs perfectly on the Emulator. All my terms and agreements with Apple are up to date. I tried to download the apps through Testflight on 2 different devices, iPhone 7 Plus (iOS 15.8.1) and iPhone 15 Pro Max (iOS 18.3.2), and I was unsuccessful in neither attempt. I can send my app to the internal testers, but when I click download, the following message appears: Could not install [APP NAME]. The requested App is not available or doesn't exist. I imagine this problem is with Apple itself, I have already contacted support, but I need to resolve this urgently for my customers. Has anyone experienced this and resolved it?

Future of Behavioral Authentication on Apple PlatformsWith the rapid advancement of on-device AI and Apple Intelligence, does Apple see a future where user identity can be continuously verified through behavioral patterns and contextual signals rather than relying solely on discrete authentication events such as Face ID, Touch ID, or passcodes? If so, what privacy and security challenges would need to be solved before such an approach could become practical on Apple platforms?

Is there any way to get notified in macOS when the iCloud Drive becomes online/offline so that I can update the UI in my app to reflect that state? Thanks!

Hello, I'm facing an unusual App Store Search issue and would appreciate guidance from Apple staff or developers who have experienced something similar. App Details App Name: Logistos – Logistics Platform Apple ID: 6759841195 Category: Business Availability: Available in all supported storefronts, including India Publicly available for: More than 2 months Latest version: Released and live for more than 5 days Issue The app is accessible through its direct App Store URL and is indexed by Google Search. However, it does not appear in App Store Search results. I have tested the following search terms on multiple devices and storefronts: Logistos Logistos – Logistics Platform Logistos Logistics Platform 6759841195 (Apple ID) In all cases, the app does not appear in the search results. Additional Information The app name contains "Logistos". The subtitle is "Logistics & Shipment Tracking". The keywords include "logistos". Metadata changes have already been released and enough time has passed for propagation. App Store Analytics shows the app is receiving impressions, product page views, and downloads. Direct App Store links work normally. I have already opened a support case with Apple Developer Support. Case ID: 102908696756 Has anyone encountered a similar App Store Search indexing issue? Could this indicate that the app requires manual reindexing by Apple? Any guidance would be greatly appreciated. Thank you.

do you see a future where devices continuously verify a user’s identity through behavioral signals rather than discrete login events?

Hello Albert! I am experiencing some strange bugs around DeviceActivityEvents (part of the DeviceActivity framework) on iOS 26 / iOS 26.1 / iOS 26.2 beta: When creating a DeviceActivityEvent we can assign a threshold and applicationTokens. The idea is, that after the user has spent said threshold on said apps, eventDidReachThreshold() is called. The property includesPastActivity is set to false. On iOS 26 however, it happens (quite reliably after updating to a new beta seed) quite often that eventDidReachThreshold() is called immediately (after a couple of seconds) instead of waiting for the threshold to be met. Is anyone else seeing similar issues on iOS 26 / iOS 26.1 / iOS 26.2 beta? Only workaround I have found is to ask users to revoke and re-grant Screen Time permissions. This only holds for about two weeks though or at most until the next iOS 26 beta update is installed, so it is not a permanent solution unfortunately. Feedback (incl. sysdiagnoses and sample project) is filed under: FB18061981 FB18927456 One of our users has filed their own feedback request as well: FB20817853 Thanks a lot for any help on this!

with the advancement of on-device ai, do you see a future where devices continuously verify a user’s identity through behavioral patterns rather than discrete authentication events such as Face ID or password entry?

With the rapid advancement of on-device AI and Apple Intelligence, does Apple see a future where user identity can be continuously verified through behavioral patterns and contextual signals rather than relying solely on discrete authentication events such as Face ID, Touch ID, or passcodes? If so, what privacy, security, and battery-efficiency challenges would need to be solved before such an approach could become practical on Apple platforms?

This is the first notarisation activity on a newly enrolled Developer Program account. Every submission has been stuck "In Progress" with no terminal status and no log available. Oldest stuck request: UUID: bfb5a0e3-31a2-4dcd-a1c6-2f26ce6e62dd Created: 2026-05-29T13:43:22Z Team ID: ZH3S4VZT33 It has now been more than 7 days. I understand first-time submissions can be held for in-depth analysis, which is why I waited a full week before posting. Evidence this is account/team-level rather than specific to one app: A second submission the same day (e42fb5f4-8fc7-4eec-9eef-9764e756b444) and a separate throwaway probe app submitted 2026-06-01 (0333a989-3a9f-44b1-98e6-69f9ee4028e4) are all stuck "In Progress" too. xcrun notarytool log <id> returns "Submission log is not yet available" for all of them. No rejection email at the Apple ID address. Apple System Status shows Developer ID Notary Service as Available. Could someone from the notary service team check the queue for Team ID ZH3S4VZT33 and advise whether these are in the in-depth-analysis path? Happy to provide codesign output or additional UUIDs.