Big Huge Games has issued a new cumulative patch (10.8MB) for Rise of Nations, updating their real-time strategy game to version 02.04.04.2903. The patch, available through the game's auto updater, has a number of gameplay changes and fixes. The full list of changes can be found here. To install the patch, Run Rise of Nations and click the "Check for Updates" button, or log onto GameSpy through the "Multiplayer Game" menu. If there is no "Check for Updates" button on the menu: this button was added in a patch for Rise of Nations, so if you've just installed the game it will not appear on the main menu. You can either log onto GameSpy through the "Multiplayer Game" menu and auto-download Patch 4, or download Patch 3 here which will add the "Check for Updates" button to the menu.