The wow-update-enUS-17266.zip file you have requested: Official Patches / v540 / World of Warcraft v5.3.0 to v5.4.0 Patch (English/US) - 684.39mb is not available. Perhaps try browsing all files for the game World of Warcraft and upload any files you want to share or are missing. This is the only information we could locate:
This patch will update World of Warcraft from version 5.3.0 to version 5.4.0. The new patch brings a new raid, many class changes, a new PvP season, and a whole new questing area. It also marks the end of the Battlefield: Barrens event.