I'm designing the skin for iPhone 13 series and iPad mini 6. But why this time the design guidelines is not updated on the url https://developer.apple.com/accessories/ ?
Is there any suggestion?
The Apple Accessories Design Guidelines is not updated on the web with new devices such as iPhone 13 series and iPad mini 6
It's not unusual for there to be a time lag between the introduction of new devices, and the updating of all the supporting materials.
I suggest that you adapt an existing design if you need it now, or wait for the documentation to be updated.