Mac OS X Snow Leopard

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<div style="font: bold 2em/1.2 -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif; color: var(--wiki-color);">Mac OS X Snow Leopard</div>
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! class="ios-lab" | Developer
| class="ios-val" | [[Apple]]
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! class="ios-lab" | Version
| class="ios-val" | 10.6
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! class="ios-lab" | Initial release
| class="ios-val" | August 28, 2009
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! class="ios-lab" | Final release
| class="ios-val" | 10.6.8 (July 2011)
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! class="ios-lab" | Price
| class="ios-val" | $29
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! class="ios-lab" | Preceded by
| class="ios-val" | [[Mac OS X Leopard]]
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! class="ios-lab" | Succeeded by
| class="ios-val" | [[Mac OS X Lion]]
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Mac OS X Snow Leopard (version 10.6) is the seventh release of [[macOS]], shipped on August 28, 2009, at a pointed $29 — marketed on having "no new features." The tagline undersold a rebuild: the system went Intel-only and largely 64-bit, Grand Central Dispatch made multicore programming tractable, OpenCL opened GPUs to general computation, and the OS itself shrank by gigabytes. QuickTime X, a rewritten Finder, and Microsoft Exchange support were the visible garnish.

Its most consequential addition arrived mid-life: the Mac App Store, in update 10.6.6 (January 2011), bringing iOS-style software distribution to the desktop.

= Features =

Grand Central Dispatch; OpenCL; 64-bit system apps; a smaller footprint and faster installs; QuickTime X; Exchange support; malware quarantine's quiet debut; and the Mac App Store (10.6.6). Rosetta became optional — PowerPC translation's last stand.

= Legacy =

Snow Leopard became the reference point users invoke whenever software quality wobbles — "just give us a Snow Leopard release" remains the genre's name (and [[iOS 12]] its mobile heir). Its concurrency frameworks underpin Apple-platform software still, and its refinement-year template proved a maintenance release could be the era's most loved.
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