The Holocron of Odan-Urr was first mentioned, albeit unidentified, in the Codex entry for Yuon Par in Star Wars: The Old Republic, a video game released by BioWare and LucasArts in 2011. It later appeared and was identified in the 2018 Knights of the Eternal Throne "Jedi Under Siege" expansion as one of the items that Republic players must recover as part of the Daily quest "The Sacred Artifacts."
The Holocron of Odan-Urr was first mentioned, albeit unidentified, in the Codex entry for Yuon Par in Star Wars: The Old Republic, a video game released by BioWare and LucasArts in 2011. It later appeared and was identified in the 2018 Knights of the Eternal Throne "Jedi Under Siege" expansion as one of the items that Republic players must recover as part of the Daily quest "The Sacred Artifacts."