When the third release of macOS High Sierra came out, I charted the pace of its updates compared to all prior Mac OS X/macOS releases. I said I planned to keep that chart current, so here it is now that the fifth High Sierra update (10.13.3) is out. (Note that 10.0 has vanished from the chart, because it had only four releases.)
Click the above image for an in-window larger version, or just view the full-size version directly.
As you can see, macOS 10.13 took just 120 days to reach its fifth update; that’s nearly half the time (229 days, macOS 10.11) as the next quickest release.
Is it better software updating, catching more bugs earlier and pushing releases faster, or is it just buggier software receiving multiple quick-release critical updates? I obviously don’t know, but my perception as a user is that it’s the latter.