Rare has announced that Sea of Thieves will be receiving a major update that will require players to download and reinstall a full version of the game – though the new version’s file size will be significantly smaller.
Announced through the official Sea of Thieves website, the update will be coming to PC and Xbox One on February 6. Executive producer Joe Neate explained that this new version is necessary to keep the overall size of the game from spiraling out of control with subsequent updates, and will allow Rare to be able to generate and transfer new builds of the game more quickly in the future.
Source: IGN.com Sea of Thieves Update Requires Full Download and Reinstall