Version 0.18.28 released

• Minor visual changes and fixes to achievement and tutorial related guis.
  

• Fixed that changing script areas and positions through the map editor in multiplayer as the client didn't work correctly. more
  
• Fixed a crash when clearing logistic requests. more
  
• Fixed some styles being defined twice in style.lua. more
  
• Fixed follower robot count alert not showing correctly. more
  
• Fixed container gui not showing logistics filters properly in large containers. more
  
• Fixed wrong open/close sound for chemical plant. more
  

• Added support to play a sound when opening dropdowns through opened_sound.
  
• Improved performance by up to 2.5x when the game needs to iterate Lua tables on the C++ side.
  
• Improved save/load performance of mod script data.
  

• Lua functions are now explicitly disallowed in the script 'global' table.
  
• Added LuaSurface::generate_with_lab_tiles read/write
  
• Added LuaEntity::mine().
  

You can get experimental releases by selecting the '0.18.x' beta branch under Factorio's properties in Steam.