Apple's FULL security-update behavior for *full* macOS software support
a. Longest full macOS software support was 2.49 years (OS X 10.4 Tiger)
b. Shortest full macOS software support was 0.51 years (OS X 10.0 Cheetah)
c. Average full macOS software support was 1.18 years (20 versions)
d. Typical full macOS software support was ~1.0-1.5 years
Wow, you use one metric for iOS and very different for Mac OS! In fact
2025's Tahoe still supports Intel CPU Macs from as early as 2019. ~6
years and counting. OS 27 ends that support.
Hi Tom,
Do you really disagree with every single fact about Apple's OS support?
Did you notice that these dates are generous to macOS as they gave a free
bonus length of time because I couldn't easily find all the prior-OS dates.
So I used the generous next-OS-release date instead of the last prior OS.
And I said that was what I was using - so I'm being up front with the data.
It's a lot harder to get that data than it is for you to complain about it.
If you have the exact date each release shipped, let me know & I'll use it.
Otherwise, the summary stands as reasonably accurate & is the best we have.
The average full macOS software support was 1.18 years (over 20 versions).
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