Minor Features

• Added ability to set a maximum number of map upload slots for multiplayer servers. Setting this is recommended to prevent the server from being flooded with map fragment requests from clients.

Optimisations

• Optimized alt-mode icon background rendering. more

Bugfixes

• Fixed that cut tool marked trees/rocks/cliffs for deconstruction when there was other valid entity in the selection. more
• Fixed that movement by keys or clicking on an alert didn't unsnap the currently followed train in the map. (https://forums.factorio.com/69199) more
• Fixed that the game would crash when showing blueprint library tooltips. more
• Fixed that the game would crash when showing a blueprint library tooltip in multiplayer when the blueprint/book was removed by another player.
• Fixed alt-mode icon background for narrow icons was be very subtle. 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.