When I try to submit to TestFlight, I'm told: "Unsupported SDK or Xcode version ... You need to use the latest Release Candidates for SDKs and Xcode." I am using the latest Xcode RC, Version 16.3 (16E137). But my guess is that I am not being given, in conjunction with this, the latest iOS 18.4 RC. I need 22E239 but I'm unable to download and install it thru Xcode. What I'm being given is SDK version 18.4 (22E235).

So I submitted my app for TestFlight external testing and got this email: ITMS-90078: Missing potentially required entitlement - Your app, or a library that’s included in your app, uses Apple Push Notification service (APNs) registration APIs, but the APS Environment Entitlement isn’t included in the app signature’s entitlements. If your app uses APNs, make sure the App ID is enabled for push notifications in Certificates, Identifiers & Profiles, sign the app with a distribution provisioning profile that includes the APS Environment Entitlement, and upload a new build to ensure that push notifications function as intended. For details, visit: https://developer.apple.com/documentation/usernotifications/registering-your-app-with-apns. But here's the thing: everything this says is 100% bogus. My app uses no libraries and no push notification service registration APIs. The term register is used in my app, because I use table view cell registrations. Could that be the cause of this bogus warning?

Is anyone else having trouble with the Documentation in the latest Xcode beta? I can't get any UIKit documentation to appear. UIKit is completely missing from the table of contents too. I've tried deleting the documentation caches but it isn't helping.

In my UIKit app, I'm getting this log message in the Xcode console: "What changed the navigation bar bounds size to something unexpected during the animation if it wasn't a showsScopeBar change?" I could answer this question, but to whom should I be answering? Does this mean that Apple is interested in hearing about situations where this can legitimately occur?

I would like to know whether and how people are getting the sandbox account > manage > clear purchase history feature to work. I clear purchase history (either on my device or at app store connect), and I delete my app from my device. I then run my app from Xcode on my device, and it detects at launch the existence of the purchase, and so I cannot test my purchase user interface. Does this thing actually work as advertised?

In the Xcode 13 beta, where's the Vary For Traits button?

When I use PHPickerViewController to let the user choose a photo, and I run my app in the Simulator, there is some issue with just the first photo in the library. If the user chooses that photo and we say guard let result = results.first else { return } let prov = result.itemProvider print(prov.registeredTypeIdentifiers) prov.loadObject(ofClass: UIImage.self) { (result, err) in     print(result) } we are told that the registered type identifiers are ["public.jpeg", "public.heic"], and then when we ask for UIImage we get an error: "The file ... couldn’t be opened because there is no such file." And the resulting UIImage is nil. The problem arises only for this one photo, and it is the only one with an HEIC representation. Is there some issue with photos that have an HEIC representation? How are we supposed to retrieve the image for these? (The same code works just fine on a device. The issue arises only on the Simulator. I'm using the latest Xcode 12.2 beta.)

In WWDC 2018 video 220, minute 28:00, the presenter says "we're going to be introducing a new Instrument for layout".That was back in the beginning of June. It's now the middle of August. We're on Xcode 10 beta 6. I don't see this instrument. Where is it?

Where is the sample code example for WWDC 2016 video 216 (on advances in UIKit view animation)? Should be called something like Photos and should have an example of an animation that can be interrupted, scrubbed, and restarted.

Why does WWDC 2015 video 510 claim that it works to put a UIImage generated by calling UIImage(CIImage:) in a UIImageView? This has _never_ worked, and it still doesn't. The code they use is like this:imageview.image = UIImage(CIImage:ciimage)That displays nothing. The only way to display a UIImage based on a CIImage is to _render_ it, _explicitly_. A UIImageView is not going to magically do this for you. For example, in my own code, where the CIImage is called `blendimage`, this works fine: UIGraphicsBeginImageContextWithOptions(myextent.size, false, 0) UIImage(CIImage: blendimage).drawInRect(myextent) let im = UIGraphicsGetImageFromCurrentImageContext() UIGraphicsEndImageContext() self.iv.image = imBut this does nothing: the image view is blank: self.iv.image = UIImage(CIImage: blendimage)The video surely would not be making this explicit radical claim if it isn't true. But it isn't true. So why do they make it? Is it _supposed_ to work but failing? Or have I just been missing something all these years that would make that line of code magically work?