Requirements as well for the connection of external displays
Because Netflix requires, as a new auxiliary document explicitly states, that the Apple computer has the latest security chip T2, which, among other things, is used for SSD encryption and control of the Touch ID fingerprint sensor responsible is. “Ultra HD”, as Netflix 4K HDR also calls it, therefore only works on “selected Macs from 2018 or later with an Apple T2 security chip”.
In addition, every display that you needs to be connected to the computer via an HDCP 2.2 connection, up to 4K at 60 Hertz is possible here.
Which Macs are allowed to play
What is confusing about the requirement is that 4K HDR can be played on Windows computers without an integrated security chip – something comparable to the T2 does not exist here. Netflix is more aggressive when it comes to copy protection on Macs than on Windows. The devices that meet the necessary requirements are the iMac from 2020, the iMac Pro, MacBook Air and MacBook Pro from 2018, and Mac mini from 2018 and Mac Pro from 2019.
In When it comes to HDR, Safari in Big Sur can now play back Dolby Vision or high dynamic range content according to HDR10 if the Mac is compatible. Another new technology that Safari 14 supports for the first time is the Google WEBP image format, which is displayed directly in addition to JPEG, PNG and GIF; Mac users previously needed alternative browsers such as Chrome or Firefox.