February 17, 2009 Patch (Portal)

{{Patch layout
 * game = portal
 * source      = http://store.steampowered.com/news/2252/
 * source-title = Orange Box Engine Update Released
 * before      = June 10, 2008 Patch (Portal)
 * after       = February 20, 2009 Patch (Portal)
 * notes       =

Orange Box Engine
}}
 * Updated the engine to report SteamIDs using the Steam_0 format instead of Steam_1
 * Fixed problems in Half-Life 2: Episode Two, Portal, and Source mods running the current Orange Box engine
 * Reverted the change that capped rate at 30000