Changes

• Modified NPE quest structure to give the player more notice of impending attacks
• Added missing Steel plate recipe to NPE tech tree more
• Removed unneeded Iron stick recipe from NPE
• Fast replacing between rail signal and rail chain signal will preserve circuit wire connection and relevant settings. more

Bugfixes

• Fixed that the evolution pollution factor wasn't migrated properly. (pollution was increasing evolution 16.6 times faster than it should for existing saves).
• Fixed a crash when trying to assign invalid things to LuaPlayer::game_view_settings. more
• Fixed that replays could trigger autosaves and take screenshots. more
• Fixed that changing mod settings through Lua commands wouldn't trigger the settings-changed event. more
• Fixed that /config didn't support name, description, or tags. more
• Fixed a crash when using temporary stations. more
• Fixed that drop-item into vehicles didn't work. more
• Fixed that resizing the window while loading on 4k screens would cause the progress bar to not render. more
• Fixed that the crafting queue GUI wouldn't show correctly when loading a save with crafting in progress. more
• Fixed text box line wrapping didn't work correctly in most cases. more
• Fixed a crash when re-joining a multiplayer game while the tips-and-tricks window is visible.
• Fixed a crash when opening the set-filter GUI on the ammo inventory of other player using the /open command.
• Fixed that the pollution generation of steel furnace wasn't what it was supposed compared to 0.16.
• Fixed that you could die during a cutscene and become a ghost when it ended. more
• Fixed that you could die with required items in your inventory and make the NPE unwinnable. more
• Fixed that some turrets wouldn't be detected by the quest objectives in the NPE. more
• Fixed issue with detecting Steam engine on network in NPE more
• Fixed biters getting stuck in massive clumps in NPE more
• Fixed biters becoming frozen after arriving at target destination in NPE more
• Fixed crash when mining scrap metal in NPE more
• Fixed biters losing aggression after save/load during NPE more
• Fixed some windows in the NPE having inconsistent header draggable textures more
• Fixed build order for Compilatron in NPE so it is more successful more
• Fixed set_active_quick_bar_page not updating the GUI. more
• Fixed that waiting on temporary stop was reset every time other station was added. more
• Fixed that blueprints with trains and rails still could snap the trains to different rails. more
• Fixed LuaGameScript::take_screenshot with anti_alias = true would produce bad screenshots more
• Fixed that snapping to position while building ghost didn't update the ghost position properly, leading to invisible entities in rare cases. more
• Fixed a crash when destroying trains while in the paused map editor state. more
• Fixed that recipes could be setup to produce > 1 count of items that are never meant to be stacked. more
• Fixed that creating a new blueprint and pressing Q after it was setup removes it instead of putting it into inventory. more
• Fixed LuaGameScript::take_screenshot with anti_alias = true would produce bad screenshots. more
• Fixed Artillery targeting remote not showing the correct ability count in the quickbar. more
• Fixed scrolling through blueprint book with Shift+mouse wheel on macOS. more
• Fixed Artillery targeting remote not showing the correct ability count in the qickbar. more
• Fixed that blueprint shortcuts in quickbar linked to the library wouldn't remember their orientation. more

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