Presumably any 4K discs without DRM will still play, and of course you can still play the DRM discs on older Intel processors. This problem only applies to 4K Blu-ray discs with DRM. Not only Intel, but AMD has had similar issues as we wrote about in October. But there have been numerous vulnerabilities discovered in the intervening years.
The SGX extensions were introduced with the sixth generation of Intel Core Skylake processors in 2015, the same year as Ultra HD Blu-ray, aka 4K Blu-ray.
These extensions are required for DRM processing on these discs, hence the problem. This week Techspot reported that DRM-laden Ultra HD Blu-ray Discs won’t play anymore on computers using the latest Intel Core processors. You may have skimmed right past it, but the table on page 51 of the latest 12th Generation Intel Core Processor data sheet (184 page PDF) informs us that the Intel Software Guard Extensions (SGX) have been deprecated.
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