Bugfixes

Fixed a crash related to multiple blocks reserved for different trains but later merged by placing a rail. more
Fixed that construction robots were missing their working animation. more
Fixed circuit network debug visualization text overlap. more
Fixed the circuit network tooltip backgrounds didn't highlight correctly. more
Fixed that script.active_mods wouldn't be accurate when loading save files in some cases. more
Fixed that the sync-mods-with-save feature would try to download mods it didn't need to in some cases. more
Fixed that trains pathfinder could create non contiguous path in case of single segment cycle with a junction. more
Fixed possible crash when units were attacking rails with train on them. more
Fixed pump would consume energy and play animation when it tried to transfer very small amount of fluid but failed to do so. more
Fixed creating fire entity by trigger effect invoked by a particle would crash the game.
Fixed overriding LuaSurface::brightness_visual_weight would cause light map to appear in map view. more

Scripting

Building entities with from items with 0 health will set the entity to 1 health instead of 0. more
Added LuaGameScript::reset_time_played() which will reset the 'Time played' to 0.

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