Adeptus ArsThe #Codex: Aeldari update redefines wraithbone as a composite of minerals, not pure psychic energy. Longtime fans see it as a major lore change, others call it an oversight.
Are GW’s retcons making 40K lore weaker or stronger? Let’s discuss. 🤔 #Warhammer40K #Wraithbone #Aeldari
Read More: https://www.adeptusars.com/features/the-wraithbone-retcon-controversy
The Wraithbone Retcon Controversy Explained
In early 2025, Games Workshop quietly altered one of the longest-standing elements of Aeldari lore in the 10th Edition Codex: Aeldari. A single passage redefined wraithbone—the psycho-reactive material that forms Eldar structures and weapons—as a composite substance requiring ores and minerals, rather than being purely psychic energy solidified from the Warp. This seemingly small change contradicts over 30 years of established canon, where wraithbone was described as being grown directly by Bonesingers using psychic power alone.