Okay, my iPhone is now running iOS 17.4, and my macs are now running Sonoma 14.3. The iPhone appears in Finder & Music, I click on Trust (on both the Mac and iPhone), and the Finder just spins and spins and spins... What could be the problem??

iOS 17.4 beta was just released. How can I try this out on my iPhone if I can't sync it with a computer? Is there a way to tell System Update to permit beta updates, or is there perhaps a direct link to the beta file?

I had the identical problem trying to use dylibs installed by Mac Ports. At runtime dylib wouldn't load the dylibs, saying: "code signature in '/opt/local/lib/opencv3/libopencv_shape.3.4.16.dylib' not valid for use in process: mapped file has no Team ID and is not a platform binary." The solution for me was to disable "Enable Hardened Runtime", which had been set to YES.