Epic Games have announced that Fortnite will support DirectX 12 in the v11.20 Fortnite Update.
The next Fortnite update, v11.20, is expect to release sometime this week. Fortnite updates are usually released on a Tuesday or Wednesday, so we can expect an update soon.
Epic have released a blog post stating that Fortnite’s PC version will have the option to use Microsoft DirectX 12 in the v11.20 update. Again, this is optional and players have the chance to use it and provide valuable information to Epic to help them iron out any bugs.