Hello, I have a couple of apps that are available on the Mac App Store. With the latest update I increased the minimum required version to 11.0. However, I have been getting a lot of negative feedback because on Catalina the App Store will show that an update is available. However, once the user updates the app, it will no longer run (in some cases the user can not update, but then the App Store will always show an update badge which can also ne frustrating). Is this a known bug? is there anything I can do? Regards, Sascha

Hello, I ran into a big problem for which I don't know how to proceed. Every developer can create up to five Developer ID certificates. Those certificates are used if you want to release your app outside the Mac App Store. I have an app on the Mac App Store that also offers a helper application, which is downloadable on my homepage. I have created a new version of this helper application and wanted to send it to the notarization service of Apple. Xcode displayed an error that I do not have a valid Devloper ID certificate (because the private key is missing) and I can not create a new one because I already created five certificates. I can download the certificates without problem, but I can not get the private key. At least one developer certificate was created on my machine, but It does not seem to work. Because I assumed that there is no way of getting these certificates back (always create backups!), I contacted Apple to see if they are willing to revoke any old certificates so I can create a new one (I know that at least the first two certificates are not being used, so they could be revoked, but Apple does not revoke old certificates). Right now, Apple decides whether they grant me an exception to create additional certificates. Let's assume Apple declines this request...what can I do? Can I create a second developer account? I don't care about the 99€, but it does not seem that this is allowed. Big Sur will be released tomorrow and I really need to sign this app. And yes, I know that I should keep a backup copy of my private keys in the future ;) Is there anything I can do (especially if Apple declines the request)? Any help is highly appreciated. Kind Regards, Sascha

Using the TimelineProvider I am only able to update my UI every five minutes. Is it possible to update my app more frequently (like every five seconds)? Although I set the next update to five seconds, it seems like the minimum is five minutes. Is there any possibility to detect when the app becomes active (i.e. is not in the background)? Does the new lifecycle offer such possibilities? My plan is to start a timer once the app becomes active (and disable the timer once the widget is no longer visible).

Hello, I have created a new macOS project. I dragged a NSToolbar onto my NSWindow and then I added a custom NSToolbarItem. I then added an outlet for the item and connected my IBAction to the button (so the button is no longer disabled). I have selected a symbol image for the custom item. When I start my app, the default Fonts and Colour items use the new hover effect (where the background is being coloured differently). However, my custom item does not have this effect. The colour of the image is adjusted instead. I know that I can achieve this effect by using a NSButton instead but I was wondering if I can achieve this effect with a NSToolbarItem.

I am trying to adopt the new MacOS Big Sur sidebar style in one of my apps. Previously I chose a source list and added the items to it which worked fine. I have selected the new template Window Controller with Sidebar in Xcode. When I run the project without adding any items or controls, it looks fine. However, if I add the Source List, the background of the side bar has some weird effect. It seems like the Column of the Source List messes up the background. How can I add items to a sidebar on MacOS Big Sur? I am running Xcode 12 beta 3 and the latest beta 3 of MacOS Big Sur - 11.0 Beta (20A5323l). Unfortunately I can not post a screenshot.

I am developing an app that uses GPS. In the simulator I always used the location simulation feature of Xcode which always worked for me. I selected the Debug - Location - Freeway Drive option in Xcode 10. Whenever I select some preset to simulate, Xcode shows the following error:[Client] #Spi, InterruptedGPS is enabled on the simulated device and the app has permission to access the GPS. I already tried to restart the simulator multiple times, selected another device, but no device works. Does anyone have a solution to this?Regards