All sand terrian now correctly applies the dehydrated effect
Translations
Updated translations: British English, Czech, French, Italian, Polish, Slovak, Welsh
Units
Drakes:
Saurian Seer - modify the unit to fix reductions in power level between level 2 and level 3.
User interface
If wesnoth is installed with most campaigns missing, an error message is shown in the campaign selection dialog
The inspect dialog again is able to correctly paginate large amounts of text
The credits now actually show up instead of crashing the game
Significantly improve game history query performance, preventing the query from timing out
The help browser, when looking at a unit type which uses the same image for male and female units, now only shows one image instead of showing a duplicate.
WML Engine
[filter_ability], [filter_ability_active], and [filter_specials] are renamed to [experimental_filter_ability], [experimental_filter_ability_active], and [experimental_filter_specials]
Add a [damage_type]'replacement_type' and 'alternative_type' attribute weapon special to change the type of attack under specific conditions (terrain, time of day, leadership etc...)
Miscellaneous and Bug Fixes
Added basic support for the `ttkthemes` Python library to GUI.pyw on Linux
Fixed the screen not redrawing on Windows after unlocking the computer
Fixed occasional bad rendering for blurred/translucent areas
Significantly reduced CPU usage when a dialog is open
Avoid an assert in `replay::add_start_if_not_there_yet` with corrupt files (issue #7154)