Changes

• Technology researched message does not play chat notification sound.

Bugfixes

• Fixed that the prototype explorer and CustomInputEvent::selected_prototype did not work on crafting machine fluid slots.
• Fixed LuaEntity::disconnect_neighbour called on electric pole would disconnect left side of power switch when requested to disconnect right side. more
• Fixed that cloning rails in the map editor could lead to corrupt saves in some instances. more
• Fixed offset of circuit connector sprites for inserters

Scripting

• Added PrintSettings::sound_path, volume_modifier and game_state.
• Replaced PrintSettings::skip_if_redundant with PrintSettings::skip. Added defines.print_skip.

Use the automatic updater if you can (check experimental updates in other settings) or download full installation at http://www.factorio.com/download/experimental.