https://wccftech.com/monster-hunter-world-iceborne-gets-fifth-free-update-today/

CAPCOM announced that the fifth free update for Monster Hunter World Iceborne released today on all platforms (PC, PlayStation 4, and Xbox One). On PC, the update will add 3.1GB to your install size, or 4.8GB if you also have the high-resolution texture pack; on PlayStation 4, the update weighs 2.6GB, while it is a bit smaller on Xbox One (1.9GB). You may check out the full changelog here.

The star of this Monster Hunter World Iceborne update is Fatalis, a Black Dragon which will become available to Hunters after they've completed the Iceborne storyline and the Alatreon investigation).