Campaigns

• Eastern Invasion:
  * In 'Captured', fixed units incorrectly costing upkeep after leveling up.
• Secrets of the Ancients
  * Fixed minor unit naming inconsistencies (issues #2844 and #2846).
• Under the Burning Suns
  * Added custom graphics for the broken tree in S1.
  * Various sprite and image updates.
  * Fixed a bug in the formation ability causing defense bonuses not being
  received in some cases.
  

Language and i18n

• Updated translations: British English, Chinese (Simplified), Czech, French,
  Galician, German, Italian, Japanese, Scottish Gaelic, Slovak, Spanish
• Fixed Logging Options tooltips not being translatable (issue #2837).
  

Multiplayer server

• Added support for matching user, IP, and email bans from a forums board
  when the forum_user_handler is enabled and active. (IP and email bans with
  wildcards are not supported yet.)
• Fixed various instances of the server crashing under certain conditions.
  

Performance

• Added an option to disable the FPS limiter for a slight performance boost.
  

Units

• Changed the plural name for the merfolk race from Mermen to Merfolk (issue #2940)
  and replaced a few instances in core unit or terrain descriptions accordingly.
  

User interface

• Removed individual Join/Observe buttons for each game in the MP Lobby.
• Highlight the titles of MP games with vacant slots.
• Improved MP Lobby layout on low resolutions.
• Improved reporting of network errors in the MP lobby (issue #3005).
• Ensure the chat widget remains the correct size even after a window resize.
• Custom MP game names are now capped at 50 characters.
• Restored Era info to main MP game display.
• Improved the resolution selection criteria for the MP Lobby.
• Fixed inactive weapon specials being displayed in the Unit Attack dialog
  unlike in 1.12 (issue #3033).
  

Miscellaneous and bug fixes

• Removed misleading tooltip text stating registered nicknames are optional for
  the official MP server.
• Attempting to save a screenshot with an unsupported format now shows an error
  message, instead of saving the screenshot as BMP with the requested extension.
• It is now possible to disable logdomains in the Logging Options dialog.
• Fixed the wesnoth(6) manpage claiming the default log level is 'error' when it
  has been 'warning' since version 1.9.0.
• Document --log-none in the wesnoth(6) manpage.
• Avoid trying to load invalid base64-encoded data URIs.
• wesnoth_addon_manager and the addons.wesnoth.org web index can now use data URIs.
• Fixed a crash when using certain invalid color= values.
• Implemented a workaround for an unhandled std::bad_cast from string comparison
  functions that caused a crash-to-desktop when opening Preferences among others
  (issue #3050).