What changed in Factorio in 2021

Fixed that on_game_created_from_scenario event didn't fire after pressing 'Save and Play' from map editor.

Fixed a crash related to units and mod events.

Fixed gate cloning related to opened state.

Fixed ghost electric poles connecting to electric poles of other forces, with neutral force exempt from this fix.

Fixed that LuaEntity::disconnect_neighbour was unable to disconnect specified pair of electric poles when they were on different surfaces.

Fixed ghost entities of other forces being considered valid drop targets.

Fixed that biters could get stuck trying to attack an entity they were standing on.

Removed ReactorPrototype::neighbour_collision_increase.

Added LuaTilePrototype::check_collision_with_entities, false by default. If set to true - checks for collisions with entities before building or unearthing the tile.

Fixed issue regarding placing an electric pole over a ghost of an electric pole connected to an enabled power switch.

Removed feature where reactor collision box would increase when connected to neighbouring reactor, allowing characters to walk in-between connected reactors.

The permissions list in the permissions GUI can now be localised.

Fixed cloning linked-container would clear its inventory.

Added tip about power pole coverage when drag-building.

Added GeneratorPrototype::destroy_non_fuel_fluid, true by default.

Added LuaFluidEnergySourcePrototype::destroy_non_fuel_fluid read.

Fixed LuaGameScript::save_atlas() function would crash the headless server.

Added FluidEnergySourcePrototype::destroy_non_fuel_fluid, true by default.

Added LuaStyle::bar_width read/write.

Fixed that the distance between first and second pole in the dragging electric poles tutorial was 6 tiles instead of 7.

Fixed generator and fluid energy source tooltip showing 0 fluid consumption if burning fluids with 0 fuel value or consuming fluids with temperature close to the default.

Reworked table saving and loading to be non-recursive, allowing extreme table nesting inside of `global` variable.

Fixed the inserter 'hand stack size' tooltip missing if the research-based bonus value was 1. Now it is shown if the value is greater than 0.

Added LuaEntityPrototype::inserter_stack_size_bonus read.

Fixed possibility for the victory screen to be hidden behind other GUIs under specific circumstances.

Changed tip trigger name from 'unlocked-recipe' to 'unlock-recipe' to be consistent with the way other triggers are named.

Fixed the inserter 'hand stack size' tooltip ignoring stack_size_bonus prototype property.

Added LuaPlayer::show_on_map read/write.

Fixed that the pole drag building skip trigger didn't work, so the tip was always shown even when the player used drag building.

Removed obsolete pollution-visualization sprite, which was replaced by pollution_color utility constant.

Fixed mining drill GUI not being openable if the drill didn't have module slots or energy source with GUI.

Added LuaEntity::connected_rail_direction read.

Changed default network send rate from 30 to 60 packets per second and added an option to configure the rate in server-settings.json.

Added LuaGuiElement::swap_children().

Added TrainScheduleRecord::rail_direction.

Reduced multiplayer latency on very good connections by up to 66ms (4 ticks).

Fixed drawing wall filler when hovering mouse over ghosts.

Fixed 'create-trivial-smoke' triggers being interpreted as 'create-entity' triggers in the prototype explorer which could cause a crash.

Fixed that building an entity over other forces' ghosts and undoing would transfer ownership of those ghosts to the undoer's force.

Added TurretPrototype::energy_glow_animation_flicker_strength.

Fixed gun turret tooltips showing the ammo in the middle of the other stats.

Changed multiplayer latency calculation to be smoother, reducing multiplayer stutter on bad connections.

Fixed roboport would not output signals for 1 tick when electric pole was mined while having circuit wire from same circuit network.

Fixed that setting the scale parameter to zero in a spidertron leg definition would cause a 'double value not in range for fixed point number' error.

Added migration for saves with inserters that have NaN hand height or hand length.

Sub items are now removed from items used in hand-crafting.

Added a 70% damage bonus to discharge defenses with Energy Weapons Damage 6 and 7.

Fixed a crash when using 0-length debug names in Lua bytecode.

Fixed crash when destroying a vehicle on the same frame a tooltip is created for the vehicle's weapon and ammo bar.

Fixed a crash when setting inserters to require no power when rotating/extending.

Fixed LuaItemStack::get_tile_filter would incorrectly return entity filters.

Fixed flamethrower turrets not reporting the correct damage bonuses.

Fixed crash when trying to connect wire after wire type in cursor stack was changed by script.

Fixed artillery wagon and artillery turret tooltips not showing the damage of the loaded ammo.

Fix 'Game finished' GUI had an incorrect tooltip for the green button.

Fix tank cannon showing smaller range than the cannon shells.

Fix ugly death GUI when the game is paused in MP.

Added OffshorePumpPrototype::check_bounding_box_collides_with_tiles.

Fixed vehicle weapon slots GUI not highlighting with the corresponding ammo slot when selected.

Fixed that inserters wouldn't remove burnt result items from assembling machine recipes with no item outputs.

Fixed tank cannon weapon showing a '1' in the vehicle weapon slots GUI.

Fixed an API error when checking for updates for a large number of mods.

Rocket silo no longer drains more energy at night.

Added freeplay remote interface to read the value of `skip_intro`.

Fixed that entities not containing certain collision masks would never collide with tiles.

Fixed that copy paste entity tips were dependant on the copy-paste tool tip instead of copy paste entity category.

RocketSiloPrototype::lamp_energy_usage now can be zero.

Fixed a crash when opening the tutorials GUI through Lua command.

Some of the triggers were tweaked to show/skip tutorials related to drag building.

Items with fuel value would be put into furnace fuel inventory when there was enough fuel but item could be smelted.

Fixed a crash that occurred after inserting fuel into a burner inserter while it was already trying to fuel itself.

Unrelated entities were highlighted when using a cut tool.

Trigger prototype flag filters didn't work correctly when an entity had no flags set.

Furnace's working_visualisations would not apply recipe tint on fadeout.

Inserters were picking up items on the ground marked for deconstruction.

This feature informs the Factorio.com authentication server of ban and unban commands issued in multiplayer sessions.

The low power tip didn't show in some circumstances.

Setting the direction of a script created character entity didn't work correctly.

Fixed crash due to usage of standard library function that is missing on macOS 10.11.

In editor mode, undoing deconstructions did not instantly revive affected entities.

Fixed that LuaGameScript::check_prototype_translations() didn't check technologies.

Fixed that loading a game that was saved during drag building didn't clear the internal drag building state causing blueprint snapping not working properly.

Fixed the blueprint snap-to-grid reference point being drawn behind entities in some situations.

Fixed that it was possible to interact with locomotive's fuel slots while out of reach.

Fixed that pasting a blueprint over existing train could cause a desync.

Fixed wrong mining drill status when a resource is depleted while the mining drill is missing the required fluid.

Fixed wrong status text when a mining drill drop target is marked for deconstruction.

LuaEntityPrototype::resource_categories now supports characters.

Fixed that rotating belt direction when dragging allowed 'stash' the rotate and continue in the original direction.

Added on_equipment_inserted and on_equipment_removed events that fire any time any equipment is added/removed from a grid.

Fixed that items with data would not stack properly in crafting machine source inventory when recipe requires more than a stack of ingredient.

Used by developer tools for code completion.

Resolved issue where the spidertron item icon looked different after changing color back to default.

Resolved issue with trains getting stuck when a train stop was built next to ghost rail.

Introduced a new property for scripting related to air resistance.

The missing notification icon on the recipe group button is now displayed correctly when there are more groups.

Icons on buttons with more than 200% UI scale now scale correctly.

Armor rich text tags now use the correct icon.

The wrong technology level shown on the icon in the currently selected technology has been fixed.

Pumpjack no longer shows item drop indication arrows.

Trains no longer experience NO_PATH issues during repath when passing through occupied blocks.

Roboport normal resolution graphics have been updated to be a downscale from the high resolution graphics.

All technology icons have been reworked and provided in higher resolutions for better visibility at high GUI scale.

Added 'add' and 'remove' modes to the Infinity pipe and Heat interface for modding.

Item icons for armors have been changed to better match the progression and tech icons.

Ghosts overlapping with non-ghost entities in cloned areas are now cloned correctly.

Added 'add' and 'remove' modes to InfinityPipeFilter and HeatSetting for modding.

Resolved a crash that occurred with mods during chunk generation in some cases.

Cut-tool now shows distinct selection color when holding shift.

Resolved a bad Lua event when invalidating the owning player's controller during the GUI closed event.

Resolved a crash that occurred when trying to undo actions done on a surface that was deleted.

The 'tile-build' SoundPath type has been replaced with specific sizes for mods to refer to.

New LuaEntityPrototype::related_underground_belt read added for scripting.

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

Using upgrade planner without explicit filters on entities marked for upgrade now correctly upgrades existing orders.

Resolved a crash when the link_id of a linked container changes while a non-admin has the GUI open.

Players can now confirm the migrated content window even if a game GUI is open behind it.

Includes names like container, furnace, assembling-machine, etc.

Fixed that ammo tooltips sometimes wouldn't show damage info.

Loaders are now able to take or insert more than 1 item per transport line per tick.

Enabled upgrading entities marked for upgrade, using the upgrade target as the source entity for upgrade planner filters.

Added mod dependency modifier '~', which marks the mod as required without affecting mod loading order.

Fixed that crafting machines wouldn't wake up when the speed effect was changed in some situations.

Fixed electric pole connection consistency issue related to fast replace of modded entities.

Fixed that disabling side menu GUIs through script would sometimes leave an empty frame.

Fixed that built electric pole from map view was also opened with the same click with alternative key binding.

Fixed that part of the flamethrower turret and flamethrower ammo turret description didn't show the bonus damage from upgrades.

Unified the search button in the mod settings GUI.

The announcement of player death now contains GPS tag with the location.

Fixed rare crash when using Map editor -> Convert save.

Fixed crash related to using smart ghost belt building with a mod that specifies belt without related underground belt.

Fixed a crash that could happen when viewing the tooltip for certain types of ammo.

Fixed that mod install could cause removal of blueprint entities if it didn't remove the entity.

Prototype/EntityWithHealth::healing_per_tick is now also used by trees for automatic healing.

Fixed that focus-search didn't work in some GUIs while in the map editor.

Tweaked search in the install mods GUI to prioritize results more naturally.

Improved some descriptions in Map Generator GUI.

Fixed that pressing Escape with the chat icon selector opened in a dialog outside the game closed the whole dialog instead of just the selector window.

Blueprints and copy paste of entities with upgrade order are created based on the upgrade order instead of the current entity.

Fixed that building by moving ignored the position where the player built the last entity.

Fixed that the confirm load game dialog had tooltips with (E) to confirm, while E to confirm doesn't work here.

Fixed that renaming Spidertron didn't trigger on_entity_renamed.

Fixed that pressing Control + F to search in the chat icon selector activated the bottom window search.

Fixed that laser and fluid turret bonus wasn't shown properly in the tooltip.

Fixed that chat icon selector didn't remember the last opened tab when used outside the game.

Fixed incorrect color lookup table interpolation for ambient light around noon.

Increased the tank braking power from 400kw to 800kw.

Fixed that enabled train stops would cause schedule records for trains on different surfaces to be rendered as available.

Includes enabled_while_spectating, enabled_while_in_cutscene, include_selected_prototype, and item_to_spawn read.

Includes selected_prototype when true.

Fixed walls would not be buildable on valid positions in some cases.

Fixed that exiting high speed moving train could result in a player being stuck.

Fixed control setting buttons wouldn't have a tooltip when they started without a set value.

Added move_stuck_players bool parameter (false by default) to the create_entity method.

Fixed that manual rotation of entity with rotation upgrade order didn't clear that order.

Fixed that some sounds that were audible when viewing a certain part of the map in map view wouldn't stop when closing the map view.

Fixed pole dragging corner case.

Added explicit values to the circuit network range specification in the tips and tricks.

Changed personal logistic requests for ammo so they don't get delivered to the spidertron you're driving.

Fixed that instant blueprint building in the map editor didn't work with undo.

Fixed Artillery wagon and turret showing wrong tooltip title in deconstruction planner.

Fixed that LuaFlowStatistics::get_flow_count didn't work correctly.

Fixed a crash when saving when using LuaItemStack::create_grid() on stacks with a count > 1.

Fixed a crash in multiplayer when upgrading or deconstructing.

Fixed that the copy and paste tips and tricks simulation wasn't working properly.

Added shortcut info tooltips to all of the relevant confirm buttons and close buttons.

Fixed crash caused by scrolling blueprint book in a blueprint shelf that is not yet synchronised.

Fixed that confirming the low value in logistic request didn't update the value.

Fixed that it was sometimes possible for an entity to attack an entity on a different surface.

Improved performance when building blueprints in multiplayer.

Fixed some unnecessary error sounds in a special cases when building power poles.

Fixed that the upper 1/3 part of the color picker button in the train stop gui didn't work.

Removed and tweaked some hidden locale to hopefully make 100% possible.

Fixed inaccurate range indicator in spidertron.

Fixed padding in the sync mods with save window when scroll is activated.

Fixed crash related to modded underground pipe ghosts with multiple connections with different lengths.

Fixed that tips & tricks simulation sounds were continuing to play when switched to a tutorial.

Fixed in calculation of required modules when combining real and requested modules during blueprint creation.

Fixed mod dependency tooltips in some cases.

Fixed invalid 'Can't reach' message when using ghost cursor to build rails in the latency state.

Fixed that enter to confirm a logistic request count didn't work.

Fixed crash related to loading that trigger migration to remove invalid upgrades.

Changed defines.flow_precision_index.one_second to five_seconds since that's what it actually is.

Possible fix for multiplayer server crashing when a client tries to connect.

Fixed wrong status of rail signal next to rail with wrong direction.

Fixed missing status for wall controlling gate by circuit network.

Fixed that blueprint containing only entities placeable off grid was built off grid even with snap to grid specified.

Fixed that player could get stuck by entities created in the tutorials.

Default hotkey set to O.

Players can opt back to version 1.0.0 through the betas menu.

Most mods should have been updated for compatibility with the new stable version.

Factorio 1.1 is now stable, with auto-update to version 1.1.19 for non-beta users.

Changelog from version 1.0.0 will be displayed upon loading the new update.