Windows 10 (64-bit) version 1809 or later.
Version 21 introduced several significant workflow and automation enhancements: Object Selection Tool: Adobe Photoshop CC 2020 2020 21.0.1.47 -64 Bit
At least 8 GB (16 GB is highly recommended for better performance). Windows 10 (64-bit) version 1809 or later
Some known issues with Adobe Photoshop CC 2020 2020 21.0.1.47 (64-bit) include: Adobe Photoshop CC 2020 2020 21.0.1.47 -64 Bit