Feel free to contact me if you can help replace any of the '?' entries.Ī special 'thank you!' goes to Mr. The '?' entry for Size on a given release indicates I was unable to find the size.The largest (non-combo, non-main OS release) update was 10.15.1 at 5.3GB. The smallest update was 10.3.1, at only 1.5MB.(Tecnically, it's actually the 192 day interval between the Mac OS X Public Beta and version 10.0, but I'm counting from the official 10.0 release.) The longest time period between any two minor releases is 165 days, which was how long we waited for the 10.4.9 update.The shortest period at all is two days, the gap between macOS 13.2.1 and macOS 11.7.4. The shortest time period between any two releases in the same OS generation is six days, which is how quickly the 10.15.5 Supplemental Update 1 came out after the 10.15.5 release.So on average, we've seen some sort of update every 41.8 days. As of J(13.4.1's release date), it's been 8,316 days since the Public Beta was released.This version was only for the then-new PowerMac G5 and the flat panel iMac G4, and was never generally released. This figure includes the one odd macOS X release: 10.2.7. Starting with the Public Beta and up through 13.4.1, there have been 199 macOS releases, both major and minor.Some random notes, updated from the original post: This has happened a few times over the years.

This is to keep the version numbers in the proper order, even when an older OS received an update after a major new release came out. Some entries may appear out of chronological order (i.e. Note: The Days column reflects the number of days between releases. Ⓘ Leopard - First universal binary release Ⓘ Snow Leopard - First Intel-only release Ⓘ Lion - App Store only (USB stick later) Ⓘ Ventura (Taxes were too high in Santa Barbara?) Ⓘ First-ever 'rapid release' security update

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