The Witcher: Wild Hunt is the successor of The Witcher 2: Assassins of Kings & the third game overall of the franchise.
The game has got its a Patch released, Patch 4.02, which brings overall gameplay improvements & bug fixes.
Well, Patch 4.02 brings improvements specially crafted for PC and other platforms.
Players were unhappy about issues affecting My Rewards localization in Red launcher; the issue has been resolved.
There are some visual changes coming to the game in this Patch 4.02, along with other fixes.
A Motion Blur slider has also been added, which you can access by going to Options > Video > Graphics.
Improvements are made to the game's performance mode for the consoles.
There are various other bug fixes and optimizations to make the game better than before.