Some of the old software before 2010 may not be able to install/run normally on x64 or Windows 10 systems. Be aware of it before purchasing it.
Adobe Photoshop 6.0 was released in September 2000, around twenty months after the release of Photoshop 5.5.
Photoshop 6.0 was a notable release that included a number of new features including Vector Shapes and the "Liquify" filter. Vector Shapes gave users the ability to simply draw vector shapes and create them into bitmap images. It was a feature that was applauded by Photoshop users.