Just in time for Christmas there's a new Sid Meiers Railroads! patch to be had, version 1.1 includes a couple of AI changes, a number of new options and some bug fixes in a 22mb package.

You can also find the free holiday scenario on the same files page.

Upgrade Sid Meier's Railroads! to v1.1 with this patch.

Updates:
AI - AI now takes industry potential into consideration when making route decisions.
AI - Changed AI's criteria for building new trains (now uses individual goods rather than depots)
Functionality - Added new option "Use All Trains", which allows the use of all trains in the game, when in TT mode.
Functionality - Added the ability to manipulate the camera freely when paused. To do this, pause the game and press "CTRL+F". In this mode, cursor keys move the camera and the camera can be rotated by holding the left mouse button and moving the mouse.
Functionality - Cities can now accept raw materials directly from resources properly.
Functionality - Clouds can now be disabled in the options screen.
Functionality - Enabled terrain editor. To enable the terrain editor, you must add "EditorEnabled = 1" to your settings.INI.
Functionality - Enabled larger size maps.
Functionality - Exposed scenario timescale in scenario XML. If "iTurnsPerMonth" is found in the Scenario XML, it will override the default scale of 16 turns per month (every 4 seconds). If the timescale is greater than 60 (a new month every 15 seconds), the date display will also display the current day of the month.
Functionality - Fixed rerouting cash exploit.
Functionality - Made track selection easier. (track now takes precedence over depots)
Functionality - Terminals can now accommodate up to four tracks connected to them.
Graphics - Parallel tunnel tracks now draw correctly (no longer overlap)
Graphics - Tracks connected to depots/stations/terminals draw with special graphics to distinguish them from "normal" tracks.
Interface - Added new city routing icons and chevrons to show which stops on your route map accept the goods in your current consist.
Interface - Auction window repositioned so it no longer obscures scores on larger resolutions.
Localization - Misc. localization fixes.
Multiplayer - XFire support added.