Graphics

• Updated the technology icons.
• Updated the "Make a copy of blueprint" icon.

Gui

• Added simple credits gui.
• Updated the style of progressbar dialogs.
• Updated the style of map editor.

Changes

• Changed the default debug settings to only show grid and nothing else.

Bugfixes

• Fixed that Blueprint books in the library didn't propagate its modded icon backups properly into the game.
• Fixed that Blueprint books in item form did loose its modded icon backed up state when saved between versions 0.18.37 and 0.18.42
• Fixed that swapping ghost cursor with an item didn't clear the quickbar selection immediately.
• Fixed PvP script error when starting a new round with duplicate starting areas. more
• Fixed PvP scenario not restoring character bonuses after respawn. more
• Fixed that most of the windows were not squashing as they should when they couldn't fit the screen.
• Fixed squashing of save name label in the load/save map dialog and load/save map progress windows.
• Fixed that biters could attack entities beyond their attack range. more
• Fixed crash when opening train gui through non-locomotive while in map view in latency state. more
• Fixed that the deconstruction planner was ignoring specified tile filters when removing tile ghosts.
• Fixed that the deconstruction planner with normal tile setting was ignoring tiles when the selection contained only tile ghosts + tiles.
• Fixed that the deconstruction planner with tile ghost filter selected didn't select (with whitelist) or ignore (with blacklist) the tile ghosts.
• Fixed that the deconstruction planner with tiles and rocks only and blacklist always ignored tiles.
• Fixed lights of entities just outside of right or bottom border of screen were drawn twice sometimes.
• Fixed drag-placing ghost item in zoomed-to-world view would drag the view instead. more
• Fixed that barreling recipes were generated for "fluid-unknown".

Scripting

• Empty LuaPrototype collision masks will now return an empty table, rather than nil.
• LuaEntity::circuit_connected_entities and LuaEntity::circuit_connection_definitions return data for entity ghosts. 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.