Adobe released both architectures to support legacy systems and workflows.
The 2014 update introduced several tools that significantly improved creative workflows: CC2014 32 bit and 64bit - Adobe Community Adobe Photoshop CC 2014 -32 64 Bit- Activation
The "Color Adaptation" algorithm was refined, allowing Content-Aware Fill and Content-Aware Patch to blend textures and colors more seamlessly than ever before. Adobe released both architectures to support legacy systems