https://www.gamespot.com/articles/pubgs-new-update-available-on-pc-now-full-patch-no/1100-6459324/

While PlayerUnknown's Battlegrounds is off suing Fortnite for copyright infringement, a new patch has landed on PUBG's PC servers, introducing a host of changes, tweaks, and bug fixes. Some of these changes come in the form of the effectiveness of throwables (i.g. frag grenades, Molotovs, and stun grenades), a nerf of the M24 sniper, and a new anti-cheat mechanism.

With this new patch update, frag grenades see a damage and radius buff, Molotovs have an increased area of effect and will explode when shot mid-air, and stun grenades will impair players more effectively. The M24 was nerfed, removed from care package drops, and added to the world's loot spawn system, making it a viable alternative to the Kar98K bolt action rifle.