Log Message:
Update to 2.1.9:

    * Fixed crash due to gcc 4.x optimization bug. (#40610)
    * Fixed island generator rivers and double-continent bug. (#15947, #17435)
    * Fixed auto-explore not respecting borders. (#40570)
    * Fixed stack teleporting exploit. (#40658)
    * Fixed crash when doing irrigation-connect on a mine. (#40676)
    * Fixed update bug for the city report total buy cost label. (#40695)
    * Fixed memory leak in server scan code. (#40707)
    * Fixed data type conversion bug affecting unit power factor. (#40746)
    * Fixed many typos and style errors in translated messages. (#40688, #40686, \ 
#40685, #40684, #40699, #40687, #40689, #40691, #40693, #40694, #40725)

    * Changed the save file name format to \ 
<savename>-T<turn>-Y<year>.sav. (#40681)
    * Changed the selection rectangle drawing method to speed up map drawing. \ 
(#40646)
    * Changed the city report concise rapture symbols back to * and X. (#40700)
    * Changed mass unit selection to include units with order or units under AI \ 
control. (#40727)
    * Changed the default metaserver for both client and server to the one at \ 
cazfi.net. (#40752)

    * Improved gtk widget layout so that the Freeciv window can fit on a 800x600 \ 
display. (#12825)
    * Improved map decoration drawing (popup info, goto lines, city \ 
high-lighting) for speed and memory efficiency. (#40717)
    * Improved mass unit selection: j selects a single unit, k selects tile \ 
units, y selects continent units. (#40727)
    * Improved automatic chatline scrolling. (#40721)

    * Added option to disable mouse cursor changing. (#40678)
    * Added option to draw traderoute lines with toggle shortcut Ctrl+t. (#40668)
    * Added option to prefix client chat messages with the current time. (#40706)
    * Added option to preferentially select cities over units with the selection \ 
rectangle. (#40703)
    * Added option to show production buy cost in the city descriptions. (#40702)
    * Added option to not clear unit orders when units are selected. (#40724)
    * Added option to split the lower chatline area in to two notebooks, with \ 
the message window appearing in the right notebook. (#40705)
    * Added option to disable the automatic caravan arrival popup. (#40730)
    * Added client shortcut b for buying production in selected cities. (#40704)
    * Added a list view in the network page showing current players on a server. \ 
(#40707)
    * Added client ability to center on an event tile by right-clicking on a row \ 
in the message window. (#40719)
    * Added client ability to reorder city report columns by dragging the column \ 
headers in the gtk2 client. (#40680)
    * Added worklist manipulation operations to the city report menus. (#40723, \ 
#40728, #40729)
    * Added multiplayer allies-only chat toggle button. (#40487)
    * Added more information to map popup info window. (#40488)
    * Added a toplevel menu item for the Governor menu in the city report. (#40677)
    * Added city production clipboard shortcuts Shift+right-click to copy and \ 
Ctrl+Shift+right-click to paste. (#40679)

    * Updated Finnish, Catalan, Estonian, Danish, Lithuanian, German, Korean, \ 
and Swedish translations.