Graphics

Reworked all technology icons, and provided higher resolutions used by high GUI scale.
Changed item icons for armors, to match the progression and tech icons better.

Changes

Armor stages on the player character show as 1st with Light armor, and as 2nd with Modular armor.

Roboport normal resolution graphics have been updated to be a downscale from the high resolution graphics. more
Fixed cut-tool showing distinct selection color when holding shift. more
Fixed armor rich text tags not using the correct icon. more
Fixed pumpjack showing item drop indication arrows. more
Fixed being unable to confirm the migrated content window if there was a game GUI open behind it. more
Fixed a bad Lua event when invalidating the owning players controller during the gui closed event. more
Fixed scaling of icons on buttons with more than 200% UI scale.
Fixed issue where ghosts overlapping with non-ghost entity in cloned area is not cloned. (fixes https://forums.factorio.com/97861)
Fixed using upgrade planner without explicit filters on entities marked for upgrade would not upgrade the existing upgrade orders.
Fixed a crash with mods and chunk generation in some cases. more
Fixed the wrong technology level shown on the icon in the currently selected technology.
Fixed the missing notification (i) icon on the recipe group button, when there are more groups, so the tabs are shown as buttons instead.
Fixed a crash when trying to undo actions done on a surface that was deleted in the meantime. more
Fixed that train would sometimes NO_PATH during repath while in intersection where the path passes through a block that is already occupied by that train. more
Fixed a crash when the link_id of a linked container is changed while a non-admin has the GUI open. more

Removed the "tile-build" SoundPath type. It has been replaced with "tile-build-small", "tile-build-medium", "tile-build-large", allowing mods to specify which size they want to refer to.
Added LuaEntityPrototype::related_underground_belt read.
Added "add" and "remove" modes to InfinityPipeFilter and HeatSetting.

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

P.S. Sorry /u/sPLATTYYY, still had to make an official one.