Adobe Photoshop CC version 14.2.1, released in early 2014, was the final update for the initial "CC" release (pre-CC 2014) . This version is notably bundled with Adobe Camera Raw (ACR) 8.x
This version marked a transition point for Adobe, moving toward more specialized automation and 3D integration. Adobe Photoshop CC 14.2.1 Final Camera Raw 8....
As of , Windows 7 and 8 are long out of support, and macOS 10.9 is obsolete. Running Photoshop CC 14.2.1 on a connected machine exposes you to unpatched vulnerabilities (e.g., embedded font parsing exploits, TIFF buffer overflows) that Adobe fixed in later versions. Adobe Photoshop CC version 14
If you must use 14.2.1, isolate it on an offline machine or a virtual machine with no access to critical documents. Adobe Photoshop CC version 14.2.1