In the new update following changes are there:
1- Now Movement is much smoother than before.
2- Health Regeneration system Added
3- Gunfire rate increase
4- Knife fire rate increase
5 - When your health is less than 20 percent then stamina will regenerate quicky and more.
6- New cursor added, Linux cursor problem fixed.
UpdateV2
Source: Steam Community (opens in a new tab)