Update to Xcode 27.1 release and you have GPT 6 Astra, GPT 5.6 Sol/Luna/Terra.

Hello, I happened to find the same for an old iOS 18.6 Simulator runtime that always appeared after a reboot. Turns out that this was happening but I just didn't happen to notice, or I had the iOS 18.6 sim installed when using Xcode 26. But then recently I decided to remove the 18.6 sim from Xcode 27, then I came across the same issue. Using xcrun simctl runtime delete will not work, as it will always be mounted back after reboot.. The runtime is located in the folder "/System/Library/AssetsV2/com_apple_MobileAsset_iOSSimulatorRuntime/" in a hexadecimal folder name. Because the folder is protected by SIP, you cannot remove it normally. Boot to Recovery, then from terminal, identify the Data volume, and remove it. You can look up “macOS Xcode simulator runtime stuck in /System/Library/AssetsV2” online.

If you use horizontalSizeClass and verticalSizeClass to check for the regular/compact size, then that is fine. For anything that needs APIs for SDK 27.1, e.g. ArrangementView, typically you would need to wait for the Release Candidate of Xcode 27.1, that's when they say developers can submit apps build with 27.1.

Maybe try reinstalling the simulator to force Xcode to re-register the runtime correctly. Then remove the component.

Use this: xcrun simctl delete unavailable Without sudo. I have been using that to clear previous versions of simulators that have been orphaned.

Open terminal and check: To list unavailable simulators: xcrun simctl list devices unavailable To delete them: xcrun simctl delete unavailable

Hello, I am seeing something similar running Xcode 27 beta 2, on macOS 27 beta 2. It's a MacBook Air M2 with 16 GB of RAM. Trying to spin up the preview, on getting anything to run on Device Hub is almost impossible. From Activity Monitor, the swap used is around 13 GB.

So even a M4 Mac mini with 16 GB of RAM so has issues with the Preview or Device Hub? Does it get to a state where you almost cannot use Preview/Device Hub?

Hello, I have also encountered frequent crashes since installing Xcode 27 beta. The crashes happens both in Xcode 27 beta and Xcode 26.5 latest release, running on macOS 26.6 beta. I am using MacBook Air M2 8 cpu/8gpu/16 GB memory configuration. I have filed feedback FB23112989

For this situation, an App Transfer is a better choice.

Hello, I can confirm that there is a bug in iOS 26.4.2 when testing local StoreKit 2 in Xcode. The Transaction.unfinished loop has nothing inside, although the transaction manager clearly shows there are unfinished transactions. If testing it on iOS 18.6 (only on simulator), it will loop through unfinished and successfully clear any unfinished transactions. Also it might be possible that the local storekit daemon is out of sync, I have filed a bug report for that under: Transaction.currentEntitlements sometimes does not emit a result until device is reboot (FB22349195)

I have tested my apps, the sync issues have been fixed in iOS 26.4.1. Cross syncing between 26.4.1 and 26.5 beta works fine too.

Tested my app which uses CloudKit automatic configuration. The data will sync correctly on iOS 26.5 beta 1 now. Hope Apple will push an update for 26.4.1 soon.

Have you included listening for purchase intents using the PurchaseIntent API (https://developer.apple.com/documentation/storekit/purchaseintent)

As far as I know, the active listener task should finish the transaction. Otherwise you have to setup a listener for Transaction.unfinished, found below: https://developer.apple.com/documentation/storekit/transaction/unfinished A transaction is unfinished until you call finish(). Use the unfinished sequence to find the transactions your app needs to process to deliver purchased content or enable service.