The etf11_update.exe file you have requested: Modifications / Team Fortress / Enemy Territory Fortress 1.0 -> 1.1 - 23.5mb is not available. Perhaps try browsing all files for the game Wolfenstein: Enemy Territory and upload any files you want to share or are missing. This is the only information we could locate:
1.0 - 1.1 Change Log Code / Gameplay / GUI - Fixed Slowdown Bug - fixed hud votestring drawing - added bots/pure/password info to server browser, filter on passworded servers - fix server crashing when sentry is dropped in lava/slime - Update for Enemy Territory Fortress, 1.0 to 1.1. See below for change list.