Changes

Modded achievements and their progress are now stored even when the mods adding extra achievements are temporarily removed. Up to 5000 modded achievements are stored indefinitely. more
Programmable Speaker sounds now change volume accordingly as player moves. more
Rocket Silo sounds now change volume accordingly as player moves.

Bugfixes

Fixed tightspot level 5 expecting old chemical science recipe. more
Fixed Transport belt madness inserter exploit. more
Fixed that filling energy of entities in map editor didn't work for accumulators in electric network.
Fixed a crash or desync that could happen after assigning a build_base command to a single unit. more
Fixed that mining drill covering more than 1 infinite resource showed the mining speed as sum instead of average. more
Fixed that infinite item based resources with yield of more then 100% didn't actually mine more. So yield of 260% for example means that it mines 2 resources and 60% probability of 1 extra.
Fixed cloning of accumulators in the map editor not setting available energy correctly.
Fixed a desync related to cloning accumulators. more
Fixed 2 crashes related to custom-switch. more
Fixed that train could consider itself being parked in station when in fact being misaligned. more
Fixed that activating deconstruction planner/blueprint/blueprint tool from the shortcut by pressing the buttons didn't clear the cursor if it wasn't empty. more
Fixed condition operator button visibility when dragging conditions in the train schedule GUI. more
Fixed few layouting issues with scroll panes.
Fixed that biters could get stuck in narrow passages between water tiles. more
Fixed that members of unit groups could sometimes get far ahead of the group. more

Added ability to clear a sprite or sprite-button by writing nil or empty string to LuaGuiElement::sprite. 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.