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WARNING: This is a tentative list, by no means exhaustive. See the full ChangeLog contained with the source for a comprehensive list of all changes.

Download links for older releases can be found in the download archive.


The main reason for this release is to fix a client crash triggered by chat messages; see below. Other than that, there is the usual set of bugfixes.

Server / GeneralEdit

  • Bug fix: when a unit was automatically moved to a transporter to save it from drowning or running out of fuel, the transporter could continue to appear empty. GNA#20454
  • Bug fixes in unit conversion and upgrade GNA#20452:
    • Prevent cases where units could be converted or upgraded to a type only capable of carrying different cargo to the current cargo.
    • Prevent conversion of a unit to a type that could not exist on the current tile.
  • Units of types the owner cannot build are no longer prevented from upgrade. GNA#20460
  • Bug fix: quell spurious "No diplomat action possible" message when an ordinary attempt to move a diplomatic unit failed. GNA#20150
  • Following on from a fix in 2.3.3, when a border source such as a fortress is occupied by a unit of a nation other than the owner when a ceasefire runs out, ownership now transfers to that of the occupying unit. GNA#20348
  • When acquiring a technology such as Philosophy which gives further techs by an unusual route (such as through a hut), all progress toward the current research target was lost. Now it is preserved (although 'freecost' is applied). GNA#20362
  • Bug fix: when a city is traded and hence units change ownership, it wasn't checked whether those units provided diplomatic contact to a new nation. GNA#20431
  • Bug fix: assertion failure during map generation when no unit in the ruleset satisfied the first role in 'startunits'. GNA#19886
  • Bug fix: the tech upkeep with tech_cost_style 2 or 4 was much lower than intended; it only took into account a single tech rather than all preceding techs. As a result, tech upkeep in such rulesets will greatly increase. GNA#20063
    • The currently downloadable 'civ2-3' modpack (2.3-2c) thus has tech upkeep disabled. You may want to update your copy.
  • An unknown effect requirement type in a ruleset now causes a loading error rather than being silently interpreted as "None". GNA#20462
  • When a new nation is created in the editor, city style and leader sex are now set appropriately (previously they were always European and male). GNA#19313
  • A hardcoded year of -4000 is no longer sent to the metaserver in pregame, as it is ruleset-dependent. GNA#17862
  • One code tidy-up with no user-visible effect. GNA#20458


  • The client could crash when your name was mentioned in chat but you had set the 'highlight your player/user name' setting to no color. This could also prevent any connection to a server with the event cache enabled if your player name had been mentioned in the past. GNA#20478
    • Older clients can work around this bug by setting a highlight colour in their local options (you may need to start a local game in order to access the configuration dialog).
  • Fix possible instability when loading some tilesets. GNA#20055

Tilesets / ArtEdit

  • Some internal SVG format fixes in the supplied flags to allow their use in web browsers; this has no effect on Freeciv itself. GNAPATCH#3574


  • Fix some incorrect inferences about the ability of transported units or units in cities to defend; these are most likely to affect unusual rulesets (e.g., those with ocean cities). GNA#20483

Help / DocumentationEdit


  • The Spanish, Polish, and French translations are once more complete.


  • Fix various compiler warnings. It's now possible to build Freeciv with GCC 4.7 optimisation level -O3 without any warnings. GNA#19386 GNA#19385 GNA#20443 GNA#20413 GNA#20447 GNA#20444
  • Future-proof against automake versions which ignore ACLOCAL_AMFLAGS. GNAPATCH#3585
  • Suppress warnings about use of deprecated declarations in debug builds, allowing compilation on for instance recent OpenSUSE. GNA#20428

See NEWS for older lists of changes.

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