The patch 1.03 has just been released and is now available for all PC version of The Witcher 3: Wild Hunt. The update introduces a range of stability and performances ehancements as well as allows users to take advantage of some additional graphics settings. Please find the detailed list of fixes below:

Improves stability in gameplay and the UI
Improves performance especially in cutscenes and gameplay
Fixes grass and foliage popping that could occur after density parameters were changed
Improves Nvidia Hairworks performance
Boosted texture anisotropy sampling to 16x on Ultra preset
Sharpen Post-process settings extended from Off/On to Off/Low/High
Blood particles will now properly appear after killing enemies on the water
Corrects a bug where player was able to shoot bolts at friendly NPCs
Improves menu handling
Corrects an issue with Stamina regeneration while sprinting
Fixes a cursor lock issue that sometimes occcured when scrolling the map
Generally improves world map focus
Improves input responsiveness when using keyboard
Corrects some missing translations in the UI
Corrects an issue in dialogue selections
Rostan Muggs is back
Minor SFX improvements

The console version of the patch is coming and will be available very soon.