Platform: Aperture 2
Apple states availability in its release; not verified receipt of a purchase.
Apple source ↗Apple released Aperture 2 on February 12, 2008, stating immediate availability. The US price fell to $199, with a $99 upgrade from earlier versions. These are historical announcement prices, not a current offer.

Apple · Aperture 2 · 2008-02-12
The interface grouped library, metadata and adjustments in a tabbed inspector and switched Viewer and Browser with one key. Quick Preview browsed RAW images without waiting for full processing. Recovery, Vibrancy, Definition and soft retouching expanded adjustments; announced speed improvements are not repeated as independent test results.
Apple · Aperture 2 · 2008-02-12
The specifications list selected PowerPC and Intel Macs. They require 1 GB RAM, but 2 GB for Mac Pro, DVD and 5 GB for the app and sample projects, distinguishing Tiger 10.4.11 from Leopard 10.5.2 or later. The supported GPU list remains a requirement, not any Mac with that RAM amount.
Apple · Aperture 2 · Technical Specifications
On March 28, 2008, Apple released Aperture 2.1 as a free update for 2.0 users. It added an image-editing plug-in architecture and Apple's Dodge & Burn plug-in. The third-party tools planned in the announcement are not all treated as products already available that day.
Apple · Aperture 2.1 · 2008-03-28
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: Aperture 2
Apple states availability in its release; not verified receipt of a purchase.
Apple source ↗Platform: Aperture 2
Software update released by Apple.
Apple source ↗