WHAT'S CHANGED SINCE 2.5.7[]

2.5.8 is a bugfix release.

Server / General[]

Fix trouble loading certain compressed savegames. HRM#679197
Used diplomat units no longer increase the target's score. HRM#657298
Fixed a warning when a player on your team goes to war with an ally of yours. HRM#662059
Fixed an assertion failure when losing a tech while no tech goal is selected. HRM#664286
Fixed an assertion failure when a player on your team is about to die. HRM#662701
Fixed a bug that could lead to no huts when loading from a game or scenario that was saved in the pregame state. HRM#682576
Fixed a typo'd leader name in the American nation. HRM#681847
When a city can't build a unit with a population cost, this is explained better. GNAPATCH#7707

Fix a crash when a unit has a zero activity rate. HRM#660342
Fix a crash when a unit has negative vision radius. HRM#661313
Avoids warnings and incorrect behavior when a unit's initial veterancy turns out negative. HRM#661193
Prevent the scripting API from creating a stack of illegally mixed nationality when adding a unit to a tile. HRM#661533
Using a script to modify the map in certain ways in response to the 'map_generated' signal could cause an assertion failure. HRM#673767

Fix a possible assertion failure when a spaceship launched (or at other times when an AI's mood changed suddenly). HRM#660363
(Gtk) Fix a possible Gtk warning before the map is set up. HRM#678972
(Gtk) Fix a minor memory leak in the unit selection dialog. HRM#674321
(Gtk3) Fix the middle-click tile info box having a transparent background and thus being unreadable on some installations. HRM#656549

Updated Isophex tileset. Adds distinct Lake terrain, various other cosmetic changes, and some extra resource types that are not used in the supplied rulesets. HRM#680743

The civ2civ3 online help claimed Forest, Jungle, and Swamp gave a 25% defense bonus, but in reality they only give 20% due to a game engine limitation. The help now reflects this. (The 25% bonus will be implemented in 2.6.) HRM#682494
Corrections in README.ruleset_civ2civ3. HRM#657562
Online help documents that Leader units entering huts won't unleash barbarians. GNAPATCH#7545
doc/README.tilesets was accidentally left out of the tarball. HRM#678449
Update the FAQ a bit.
Update docs to reflect move away from gna.org. HRM#660271 HRM#654670 HRM#664195
Minor update to ruleset comments. HRM#685211

Updated translations:
- Complete translations: Catalan, Russian, French, British English.
- Incomplete translations: Finnish (100% core, 93% nations).
Fix a help glitch for Migrants when using the Spanish translation. HRM#662732

The Windows package uses a new package of libraries. This is mainly expected to improve debugging. HRM#681643 HRM#681877
Work around a binutils bug that stops --enable-gprof working on some distributions (notably, Debian Stretch -- Debian bug #854704). HRM#675699
tolua.pkg, a source file not needed to build from tarballs, was inadvertently not included in them. HRM#678447

See NEWS for older lists of changes.