Before downloading and installing Adobe Photoshop CC 2018 V21.0.0.24821, ensure that your computer meets the minimum system requirements:
512 MB dedicated VRAM (2 GB recommended) with OpenGL 2.0 capability. Managing Your Version Adobe Photoshop CC 2018 V21.0.0.24821 -EXCLUSIVE
The following article explores the landmark features introduced in the 2018 (Version 19) release, which fundamentally changed digital painting and asset management. Adobe Photoshop CC 2018: A Legacy of Creative Precision The 2018 release of Adobe Photoshop Before downloading and installing Adobe Photoshop CC 2018