I develop and build the DeepSkyStacker application on an M4 Mac Mini. A user reports that with a given set of data files and application settings, that it crashes on his M4 MAX. He sent me his data files, and I can't provoke a crash on my M4. He also sent an App Crash report file which I attach. Any insight into the likely cause of the problem will be appreciated (yes, I know it is a segfault in code called from Avx256Stacking::pixelPartitioning - probably a lambda ...). dss-6.1.3-crash.log

Hello everyone, I have already submitted my app playground for the Swift Student Challenge. After submission I noticed a few things I would like to improve and fix. Is it possible to withdraw my current submission and then immediately resubmit an updated version? Any clarification (especially from Apple staff or anyone who has done this before) would be very helpful. Thank you!

I installed the new 26.4 ios and now can't compose or reply to emails on the Gmail app. I tried restarting my phone and uninstalling and reinstalling the app, but nothing helps. How can I fix this?

Hello Apple Developer Community, I am planning to participate in the Swift Student Challenge 2026. However, while reviewing the application form, I noticed that my country of residence is not listed in the address dropdown menu. I would like to clarify the correct way to proceed in this situation to avoid disqualification: Is it permissible to use the address of a relative who lives in a supported region as my contact address? Is filling out the shipping address mandatory for the initial submission, or is there an option to proceed without it? I want to ensure I fully comply with the Terms and Conditions. Any guidance or advice would be greatly appreciated. Thank you!

Hardware: • Mac Studio (M1 Ultra) • Apple Silicon • Sufficient free disk space (~35GB+ available) • SIP enabled • 4 local Time Machine snapshots present Current System: • Already running macOS Tahoe beta • Attempting upgrade to macOS Tahoe 26.4 Beta (Build 25E5207k) Primary Issue: Software Update downloads successfully, then moves to “Preparing…”. It stalls at “About 5 minutes remaining” for ~10–15 minutes and fails with: “Failed to prepare the software update. Please try again. An error occurred while downloading the selected updates.” The error appears network-related, but download always completes. Observed Behaviour: • “Checking for Updates” completes in <3 minutes. • softwareupdated and mobileassetd CPU usage <1%. • softwareupdate --history shows no record of the failed beta install. • No excessive system load or obvious disk pressure. Steps Already Attempted: 1. Standard Software Update retries • Multiple download/retry cycles from System Settings. • Same Preparing failure every time. 2. Permissions / Disk Access • Granted Terminal Full Disk Access. • SIP remains enabled. • Some system-protected locations still return “Operation not permitted”. 3. Cache / State Cleanup Attempts • Removed /Library/Updates/*. • Cleared temporary softwareupdate folders under /private/var/tmp. • Attempted MobileAsset cache cleanup where permitted. • Killed softwareupdated and mobileassetd processes (auto-restarted by launchd). 4. Beta Channel Reset • Turned Beta Updates OFF in System Settings. • Rebooted. • Re-enabled Beta Updates. • Forced catalog refresh via softwareupdate -l. 5. Snapshot Check • tmutil listlocalsnapshots / shows only 4 snapshots (normal range). 6. Full Installer Workaround softwareupdate --list-full-installers shows: • macOS Tahoe Beta 26.4 (25E5207k) • Tahoe 26.3 / 26.2 / 26.1 • Sequoia / Sonoma / Ventura / Monterey installers Downloaded installer via: softwareupdate –fetch-full-installer –full-installer-version 26.4 Installer downloaded correctly: /Applications/Install macOS Tahoe Beta.app 7. startosinstall Method (Apple Silicon optimized) Attempted install with: sudo “/Applications/Install macOS Tahoe Beta.app/Contents/Resources/startosinstall” –user –agreetolicense –nointeraction –forcequitapps –rebootdelay 30 –passprompt Authorization succeeds, installer begins preparing, but installation still ultimately fails. Additional Notes: • CPU usage remains low during failure. • No excessive snapshot count. • Error messaging consistently references download/network even though download completes. • Issue appears to occur during cryptex/asset preparation phase rather than initial download. Question for Apple / other developers: Has anyone else seen Tahoe 26.4 beta fail specifically during the Preparing phase on Apple Silicon (especially Ultra-class chips)? Looking for confirmation whether this is a known MobileAsset or cryptex staging issue, or if logs indicate a deeper APFS / volume-owner authorization problem.

Hi everyone, I’m considering integrating External Payments into my iOS app. I’ve done some research, but I’m finding it difficult to pinpoint the exact commission rates for different regions. For those of you who have already implemented external payment links: Could you share what the actual fees paid to Apple look like in your specific Geos (e.g., US, EU, or others)? Does the total cost—including Apple's commission and the payment processor's fee (like Stripe)—end up being significantly lower than the standard 15-30% IAP?

I’m building a Swift Playgrounds app (.swiftpm) in Xcode 26.2 and I consistently see this warning, even on brand-new Swift Playgrounds apps created from the default template: “Skipping duplicate build file in Compile Sources build phase: /Users/.../.swiftpm/Media.xcassets” Everything builds and runs normally and all images/assets appear correctly, so it seems like it’s just an annoying warning. I’ve checked for duplicates and don’t see the asset catalog listed twice, but the warning still appears whenever I add an asset catalog to any playground project in Xcode. Is this warning safe to ignore for submission, and it won’t affect Swift Student Challenge eligibility?

Updated iOS to 26.4. Gmail folders have disappeared in Apple Mail. Can‘t transfer email messages to folders as consequence. Any ideas?

Has anyone gotten Postgres to run in a sandboxed app? I am compiling Postgres 18 myself from source and have tried to patch it so it doesn't use sysv (shmem) but it apparently has all kinds of invocations of sysv and once it's sandboxed has issues, e.g.: 2026-02-24 18:26:05.014 EST [4384] FATAL: semctl(65596, 16, SETVAL, 536) failed: Operation not permitted Does anyone know of a way to either make the sandbox relax or make Postgres compatible with sandboxing? I have tried passing flags to initdb to use POSIX semaphores but it always wants to use sysv so I'm finding myself super deep in the weeds of the Postgres source code.

I am looking through the rules and terms and it just says Xcode submissions will be run on a simulator. Does this mean Mac Catalyst or can it be run on a iPad VM? Or more so should we specify in the comments on where to run it. Thank you!

I'm making my app in Xcode (as an app playground). I understand that the app will be run in a simulator when being evaluated if I choose the Xcode option on the submission form. However, my app looks significantly better on iPhones than on iPads. Is there a way for me to specify which device to use that will be respected by judges? What about device orientation? Thanks.

Leider ist bei der Beta 2 iOS 26.4 immer noch so das dass öffnen der App Store sehr langsam ist und teilweise sehr lange braucht bei suchen von Apps.

I am verifying my new account. However in my first log in it says my account is locked. When I try to get a new password, it is now showing a different phone number to verify that isn't mine. Now I am stuck in the loop where I can't contact support as Apple doesn't share support email or phone number details unless you log in, so now I'm stuck in a loop. Any help Apple Support, can you send me your email?

Is there any way to get the "uninstall" status to run code while uninstalling an app?

Hi everyone, I’m having issues registering my own Apple Developer accounts in both China and the US. For my China account, my Face ID is already in use by accounts registered under two companies, which prevents me from creating a new developer account. For my US account, my device SSID and handheld ID documents were used, and Apple Support advised that I can only register using a US identity. I’ve already contacted Apple Support, but the problem remains unresolved. I’m looking for shared experiences or advice on how to handle this situation. Thank you in advance!

I recently updated my iphone 14 from IOS 26.4 public beta to 26.4 developer beta 1 and I have noticed that whenever I am connecting apple original charger along with original lightening cable, the phone is charging at a very slow speed and the lock screen shows “slow charger” prompt, I tried cleaning the cable connector and also made sure that the lightening port is clean still the issue persist. Need Apple to solve this issue for multiple users like me which I have noticed on reddit with the same problem.

Hello all, I have been using app limits for a while and I recently updated my iPhone to IOS26.2.1 I have set my limit as 1 hour and 30 minutes. However, the app is already locked on 20 minutes. This happens everyday.

Dear colleagues, when will you add the ability to manually adjust the display's color temperature? Everyone is familiar with the color rendering issue on the 17 series. Many complain about the display's yellowish tint. I'm one of those people, with a G9N panel, but I can't get whites right; there's a persistent yellow tint. TrueTone only solves this problem under cool, white lighting conditions. So, the display might work as intended, but how can I make it work consistently? If there were a way to manually adjust TrueTone, many users wouldn't be so upset when buying a new device, fearing the display would be yellow. I'd like users to be able to choose their preferred color, warm or cool, and have a scale to adjust it! This would solve the yellowish tint issue on 17 series displays! Thank you.

With 26.4 beta 2 announce the time is no longer using the voice I have selected. I am using Australian English Siri 2, however it will speak using American English Samantha. I also have the system voice set the Australian English Siri 2 which is never honored. In fact, with that setting, Speak announcement never happens. Speak announcements has been broken since 26.0. There are several other issues with text to speach. Basically, TTS works for the most part if you use the default Samantha voice. Various things break when using other voices. FB22035712 -- "Announce the time not using selected voice" FB22035743 -- "Speak announcements only works if Samantha voice is selected." I will note that FB20933185 -- "Siri voices break System voice UI" appears fixed in 26.4 beta 2, in that the UI is no longer broken with Siri voices, but now Siri voices aren't honored.

I'm looking for help and/or someone who wants to join a project. I'm hooking up an RC, semi autonomous car to an app. I need help to get telemetry data, UI and DB to appear and work on the app.