Small update is coming in the next 24 hours, no downtime for servers
Early in the morning on April 21 (Wednesday) the developers will hold another preventive maintenance of the main PlayerUnknown's Battlegrounds servers. Information about this appeared in the official Twitter of PUBG Support service :
[PC] We're deploying a minor client update in 24 hours to optimize some backend systems.— PUBG Support (@PUBG_Support) April 20, 2021
No server downtime will be required and we'll announce once complete.