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M4 Macs can't virtualise older macOS

(eclecticlight.co)
176 points Brajeshwar | 3 comments | 16 Nov 24 16:12 UTC | HN request time: 0.001s | source
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roopepal ◴[16 Nov 24 16:56 UTC] No.42157400[source]▶
> It seems that M4 chips can’t virtualise any version of macOS before 13.4 Ventura

13.4 was released on May 18, 2023. That's actually not very far into the past.

Anyway, what would be the most common use cases for this? And how common are those?

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grishka ◴[16 Nov 24 17:04 UTC] No.42157446[source]▶
If you're building macOS apps, it's common to want to test them on all system versions you support. Especially so considering Apple's attitude towards backwards compatibility.
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1. JumpCrisscross ◴[16 Nov 24 17:22 UTC] No.42157550[source]▶
Are there any Macs that can run 13.4 but can't run 13.5?
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2. fwip ◴[16 Nov 24 18:00 UTC] No.42157812[source]▶
I don't think so, but no Mac before 2016 can run 13.x: https://everymac.com/systems/by_capability/maximum-macos-sup...
replies(1): >>42158123 #
3. wtallis ◴[16 Nov 24 18:31 UTC] No.42158123[source]▶
Virtualizing an older ARM version of macOS was never going to be sufficient to QA x86 applications running on older Intel Macs. For that, you'll always want real x86 hardware.