Far Harbor is available as a standalone piece of DLC for £20 / $25, or as part of the £40 / $50 Season Pass.
The first piece of DLC, Automatron, came out on March 22, and allows players to destroy robots in order to create custom companions. Wasteland Workshop came out on April 12, which expands your settlement customization options. Matt Porter is a freelance writer based in London. Make sure to visit what he thinks is the best website in the world, but is actually just his Twitter page.