Platform: Aperture 3
Apple states availability in its release; not verified receipt of a purchase.
Apple source ↗Apple introduced Aperture 3 on February 9, 2010, stating availability at US $199, or $99 to upgrade. The announcement specified 64-bit operation on Snow Leopard with Intel Core 2 Duo Macs. That launch price is not confused with later Mac App Store pricing or requirements from specifications revised years later.

Apple · Aperture 3 · 2010-02-09
Faces organised by people using face detection and recognition. Places positioned photos from GPS or manual map assignment. Brushes applied local adjustments and presets saved styles; slideshows combined photos, text, audio and HD video. These are historical features, not a promise that every publishing service remains active.
Apple · Aperture 3 · 2010-02-09
In his Macworld review of Aperture 3.0.1, Russ Juskalian praised curves and brushed adjustments. He also described analysis time for his library and editorial-team stability problems improved by 3.0.1 and ProKit 5.1. This is experience with a specific update, not proof that the entire version 3 family was fault-free.
Russ Juskalian · Macworld · Aperture 3.0.1 · 2010-03-03
Apple dates the announcement ending development to June 2014. Its archived guide says Mojave was the last officially compatible macOS and Catalina no longer runs Aperture. It recommends migration to Photos or another app; Lightroom migration does not preserve Aperture's non-destructive adjustment layer. Ending development, later incompatibility and migration are separate facts, not a new release date.
Apple · Aperture · migration and end of development
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 3
Apple states availability in its release; not verified receipt of a purchase.
Apple source ↗