When a company obsoletes a hardware platform, as Apple will do with this update, it is their moral duty to open the platform. Release the necessary source code, blobs, and docs to allow independent actors maintain their equipment, or maintain that equipment on behalf of its owner.

Apple won't. We all know that. The Broadcom wi-fi chips and the subtle differences in their embedded architecture vs. conventional PCs means x86 Macs will never be adequately supported without Apple's stewardship.