https://www.gamespot.com/articles/fallout-4-pc-update-introduces-bethesdas-paid-mods/1100-6452933/

Fallout 4 received a new update on PC today that finally adds support for Creation Club, Bethesda's collection of additional content created by developers and community members. Alongside Creation Club, the patch also fixes some bugs and adds a Message of the Day.

In essence, Creation Club is Bethesda's attempt at monetizing new content and mods. Following the paid mods controversy in Skyrim, Bethesda announced this service as a sort of compromise. Bethesda works with top modders in the community to help them start earning money. In an interview with GameSpot at E3 2017, Bethesda marketing VP Pete Hines explained that the company "bring[s modders] in as, now you're a game developer with us, not on a mod."