If you google "Dex enhanced" you'll find all you need to know. ;)
Enhanced Features :
Manual saves anytime during gameplay
New user interface and better support for gamepad
Improved enemy AI
Revamped AR and Cyberspace modes
The possibility to use weapons while walking and crouching
Support for Steam Achievements, Trading Cards and Badges
German, French and Hungarian localization
Better audio and sound effects
Multiple other fixes and improvements
"Since Dex was released, we have been listening to our fans' feedback and working hard to deliver this Enhanced Version, which will finally make it the game we always wanted it to be.", says Axel Droxler, Lead Designer of Dex.
Source:
http://www.indieretronews.com/2015/10/dex-enhanced-version-of-cyberpunk-rpg.html