The prompt only stays up for about 30 minutes in the Security and Privacy tab. Then you need to try to load again to force it to show again.You can examine the kernel extension permission database using SQLLite on /var/db/SystemPolicyConfiguration/KextPolicy but you have to give yourself permission to do that in the recovery partition by turning off aspects of system protection.You can read about it here:https://stackoverflow.com/questions/47810161/macos-high-sierra-kext-loading-are-there-any-ways-to-cancel-user-approval/51684219#51684219

KEXTs have to be root:wheel and 755 or tighter.sudo chown -R root:wheel kextPathsudo chmod -R 755 kextPath

As described this sounds like a bug.

Have you tried copying the same file by hand? As in, is the file itself good?

You didn't specify if you have discrete or integrated graphics.MacBookPro11,1 (Haswell) has Iris 5100.MacBookPro11,2 (Haswell/Crystalwell) has Iris Pro 5200.MacBookPro11,3 (Haswell/Crystalwell)has GeForce GT 750M (+ Iris Pro 5200)The Intel HD 515 is a Skylake generation feature, which didn't launch until 2015.Judging by the error code, you need an October 2015 (or later) Mac of some sort.

Is there a reason you can't use persistentIDString or serialNumberString from the ICDevice class?The fwGUID method has been removed in 10.15 headers.http://codeworkshop.net/objc-diff/sdkdiffs/macos/10.15/ImageCaptureCore.html

https://developer.apple.com/documentation/appkit/nscolor/ui_element_colorsTowards the bottom in the "Control Colors" group you'll find controlAccentColor and controlColor.These are class methods on NSColor.

Edit your storyboard or xib. Removing them via code as Claude31 suggested is correct if you're bound and determined not to edit the resources.

You would need to have a user agent running when the user logs in to watch for window event ordering changes and record them, then via XPC transmit that information to your application. I'm not sure that you can find out about windows not in your process, though since Mac OS 9 days. I'd have to look deeper. You can use NSWorkspace to watch for applications switching in and out of the foreground position.

You could have a LaunchAgent (faceless background app that is run when a user logs in) that puts the status item there for you and then communicate with it from your application via XPC.

With 10.15.3 on my MacPro I have had a very very odd freeze which didn't generate a kernel panic nor did I get a "would you like to submit" UI from the OS on reboot.There do seem to be some issues with Catalina that need to be addressed.

You should look in the "relocated items" folder that the installer makes.You can find a handy article about this here:https://www.macrumors.com/guide/relocated-items/

If you are encrypting the internal SSD on a T2 machine (which the 2019 MacBook Pro is) then encryption is pretty much instantaneous.You can try: fdesetup status -verboseSee what that says.If you are encrypting an external device where there needs to be an actual sweep of the device blocks then you should see the progress bar.