The Borderlands_Worldwide_Update_PC1.21.zip file you have requested: Official Patches / v121 / Borderlands PC Update Patch v. 1.21 - 191.6mb is not available. Perhaps try browsing all files for the game Borderlands and upload any files you want to share or are missing. This is the only information we could locate:
This patch updates Borderlands to version 1.21, and improves multiplayer connectivity, as well as fixing shadow and graphics glitches. It also improves the 3D Visions crosshair.