Codex: Space Wolves (7th Edition)
From Warhammer 40k - Lexicanum
From the frozen world of Fenris, the Space Wolves sail out across the Sea of Stars, seeking enemies to vanquish and worlds to save. Proud and noble savages, the Space Wolves eschew the teachings of the Codex Astartes in favour of the traditions laid down by their Primarch Leman Russ — their armies filled with giant wolves, lone heroes and skyborne longships. For ten millennia it has been so, the Space Wolves valuing honour, courage and skill in battle above all else.
After the release of War Zone Fenris: Curse of the Wulfen, an updated version of this Codex was released in 2016 including rules and lore for the Wulfen. This document is referred to as the "Wulfen edition".