Platform: Mac; Apple announcement
Announcement and developer preview, not public availability.
Apple source ↗macOS Mojave 10.14 was introduced with a developer preview on June 4, 2018 and became available as a free update on September 24. Dark Mode extended across system apps and Dynamic Desktop changed its image with the time of day. Stacks organized desktop files by type, date or tags.

Apple · Mojave · 2018-06-04 · Apple · Mojave · 2018-09-24
Finder added Gallery view, more metadata and Quick Actions, while Quick Look allowed PDF annotation and image or clip trimming without opening another app. Screenshot gathered image and recording controls. Continuity Camera brought photos or scanned documents from an iPhone into supported apps.
Apple · Mojave · 2018-09-24 · Apple · Mojave · Technical specifications
News, Stocks, Voice Memos and Home reached the Mac, with availability depending on region and feature. The Mac App Store renewed its design and editorial content. Mojave was the last macOS version able to run 32-bit apps; Catalina ended that compatibility, so support for both systems does not guarantee a Mac can retain every app.
Apple · Mojave · 2018-09-24 · Apple · 32-bit compatibility
Apple required OS X 10.8 or later and 2 GB of memory; upgrading from 10.11.5 or later needed 12.5 GB free, or up to 18.5 GB from earlier systems. The list admitted specific Mac families and years, including 2010 and 2012 Mac Pro only with recommended Metal-capable graphics. The 10.14.6 advisory dates that update to July 22, 2019. This page selects milestones without builds.
Apple · Mojave · Technical specifications · Apple · 10.14.6 · 2019-07-22
Selected releases, not a complete history. Dates follow Apple's release records, not the latest page edit. No builds are included.
ISO date: year-month-day.
Platform: Mac; Apple announcement
Announcement and developer preview, not public availability.
Apple source ↗Platform: macOS
Available to download that day, according to Apple.
Apple source ↗Platform: macOS
Release date recorded by Apple; client update.
Apple source ↗