OpenTTD Files

15.1 (2026-01-24)

This release contains critical security fixes awaiting a CVE ID.

• Fix [#15088]: When building a new train, the refit button state may be incorrect (#15162)
• Fix [#15160]: Incorrect company names displayed in load game window (#15161)
• Fix [#15153]: Wrong tile used to get bridge reservation overlay (#15154)
• Fix [#15116]: Old cargo/industry sets without cargo translation table broken (#15150)
• Fix: Possible crash converting company liveries in older savegames/scenarios (#15148)
• Fix: Allow infinite water to be (de)selected when loading heightmap (#15146)
• Fix: Tile suitability test for farm field no longer handled snow tiles (#15134)
• Fix [#15131]: Trees no longer spread on partially snowy tiles (#15133)
• Fix: Change tooltips to match change from checkboxes to switches (#15123)
• Fix: [Script] Potential out of bounds array/string slice indexes (#15106)
• Fix: [Script] Potential out of bounds indexed string access (#15106)
• Fix: [Script] Check if array sort function modified array (#15106)
• Fix [#15069]: World generation map edges GUI starts in an invalid state (#15082)
• Fix [#15079]: Incorrect dates shown on town cargo history graph (#15080)
• Fix [#15067]: Mark NewGRF settings as modified after moving by drag & drop (#15068)
• Fix: Incorrect error message for aqueducts reaching northern map borders (#14974)
• Fix: Standardize wording of GRF/NewGRF (#15059)
• Fix [#15046]: Crash on loading game due to invalid group parents (#15049)
• Fix: Disable_elrails handling with engines that use both RAIL and ELRL (#15045)
• Fix: [Fluidsynth] Read settings from system and user config files if available (#15044)
• Fix [#15039]: Name and version can disappear from content list (#15040)
• Fix [#15026]: Remove incorrect info from base sounds tooltip (#15029)
• Fix: [Script] Improve reporting of invalid GetAPIVersion return (#15015)
• Fix: [Script] Undefined behaviour after calling SwapList during iteration (#14805)