https://www.gamespot.com/articles/new-pubg-pc-update-makes-major-changes-heres-the-f/1100-6461588/

The PC version of PlayerUnknown's Battlegrounds has a new update that adds content and fixes a lot of the game's bugs. Update 21 implements a new mode, weapon, vehicle, weapon attachment, a reward system for fulfilling certain criteria during matches, and multiplayer improvements.

Update 21 adds a new training mode that allows you to practice different mechanics without fear of being killed. Taking place on a small island--only 200x200 km--the training mode contains 14 zones for trying out different skills. You'll be able to practice jumping off ramps in vehicles, maneuvering on twisting roads, controlling vehicle speed, piloting a boat, driving off road, shooting on different gun ranges, landing in a parachute, free-running over rooftops, swinging different melee weapons, trying different grenades, and learning the effects of consumables.