Optimizations

• Improved overall performance by 5-10% when fully zoomed out.

Bugfixes

• Fixed that some error messages wouldn't be translated. more
• Fixed that biters might remain inactive when they should be activated. more
• Fixed that units could teleport through cliffs if they bunched up close together. more
• Fixed that setting LuaGuiElement::zoom to 0 would crash the game. more
• Fixed a crash when changing mod options while the cursor hovers the "Back" button. more
• Fixed a crash due to recursive chain signal update. more
• Fixed that if a non-attack distraction command failed, it would raise the on_ai_command_completed event repeatedly. more
• Fixed that opening web links in the Linux Steam build of the game could take unreasonably long. more
• Fixed that logistic requests, item filters and similar could be set to the copy-paste tool when clicking the slot while holding that item. more

Scripting

• Added LuaItemPrototype::reverse_* read for selection tool.
• Added LuaEntity::radar_scan_progress read.
• Added LuaEntityPrototype::logistic_parameters read.
• Added LuaEntityPrototype::heat_buffer_prototype read.
• Added LuaHeatEnergySourcePrototype::heat_buffer_prototype read.

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