The 4th beta of the upcoming version 1.4 of OpenTTD has been released.
OpenTTD is an open source complete recreation of "Transport Tycoon Deluxe"by Scottish games designer and programmer Chris Sawyer (Microprose). It delivers many bug fixes and general enhancements to the game.
Quote: 1.4.0-beta4 (2014-02-06)
Change: [NewGRF] Make vehicle variable 61 return ´not available´ instead of zero when using it in invalid callback contexts (r26294)
Feature: Display speed limit also for road bridges in the TileInfo window [FS#5849] (r26277)
Fix: Correctly identify opposite ends of bridges and tunnels when converting rails [FS#5866, FS#5888] (r26291)
Fix: Prevent infinite recursion also in RefreshLinks [FS#5878] (r26283)
Fix: [NoAI] Some RemoveRail methods required to set a valid railtype, though it was not used anyway. Remove the need to set one [FS#5853] (r26279)
Fix: Do not spawn link graph jobs for link graphs with only one node [FS#5874] (r26276)
Fix: [NewGRF] If NewGRF provided the same station name for different industry types, stations would end up with same name. So also consider the provided name, not only the industry type (r26275)