If you truly need vintage Photoshop for a specific workflow (e.g., legacy 3D layers or CS6-era actions), consider running a virtual machine with Windows 7 or macOS Mountain Lion, and install only from original media you legally own.
Even individual use of pirated software is copyright infringement. Adobe has a history of tracking unauthorized licenses through phone-home features. While they may not sue individuals, businesses face fines up to $150,000 per software copy. Adobe Photoshop CS6 13.0.1 Extended Final Multi...
: Interactive on-canvas controls for three new photographic effects: Iris Blur (shallow depth of field), Tilt-Shift , and Field Blur . Improvements in Update 13.0.1 If you truly need vintage Photoshop for a
