Fallout 76 : Free PS5 / Xbox Series XS Upgrade for Any PS4 Version & Xbox One Digital Owners

XBOX Series & PlayStation 5 Upgrade.
The long-awaited XBOX Series & PlayStation 5 native update for Fallout 76 is now available Making the game more performant and stable on current-gen hardware while giving us the ability to more finely tune the game for Gen9 and Gen 8 hardware in the future.
Fallout 76 PS4 & PS5
Fallout 76 XBOX
Accessing the native XBOX Series and PlayStation 5 versions of Fallout 76 will require you to redownload the entire game from your platforms respective store. Head to the Fallout 76 store page on XBOX or PlayStation to find the XBOX Series or PlayStation 5 versions of the game.
Once downloaded, you can expect:
Targeted 60 FPS across XBOX Series XS, PS5 and PS5 Pro
4K resolution (on compatible displays) on XBOX Series X, XBOX One X, PS5 Pro.
VRR (capped to 60 FPS on compatible displays) on Xbox Series S, Xbox Series X, PS5, PS5 Pro.
PS5 and PS4 Pro will support 1440p while previous generation platforms will continue to support 1080p.
Source : Fallout 76: The Slasher Release Notes