Changelog

Version: 3.1.0
Date: 2026-08-09
  Major Features:
    - Rewrote the request processor to cover more situations where multiple providers exist but not all are available. This should consistently provide better matches and distribution across multiple providers. There may be some obscure problems lurking in extreme corner cases, so any bug reports are welcome.
  Changes:
    - add 'ltn-list-refuel-excluded' console command to show which locomotives are not considered for refueling in LTN.
    - reworked some of the locale strings, especially around pluralisation. If you maintain a language pack for LTN, you may need to update it. LTN officially only supports English and German.
    - If no provider for a delivery is available, the console message now contains a breakdown why existing providers couldn't be selected.
    - When printing a network id, now list the various networks, not just the hexadecimal value
    - When printing a merged delivery manifest, print the various items, not just a stack summary

Version: 3.0.1
Date: 2026-07-30
  Bugfixes:
    - If a chosen provider stop was inaccessible, LTN would report "no train found ..." even if more than one stop could provide items.
      LTN Now iterates through all provider stops if more than one exists. based on a discussion on the forums with @deadbyte and @pavel.recnik

Version: 3.0.0
Date: 2026-06-24
  Changes:
    - Update to Factorio 2.1

Version: 2.9.0
Date: 2026-08-06
  Major Features:
    - Rewrote the request processor to cover more situations where multiple providers exist but not all are available. This should consistently provide better matches and distribution across multiple providers. There may be some obscure problems lurking in extreme corner cases, so any bug reports are welcome.
  Changes:
    - add 'ltn-list-refuel-excluded' console command to show which locomotives are not considered for refueling in LTN.
    - reworked some of the locale strings, especially around pluralisation. If you maintain a language pack for LTN, you may need to update it. LTN officially only supports English and German.
    - If no provider for a delivery is available, the console message now contains a breakdown why existing providers couldn't be selected.
    - When printing a network id, now list the various networks, not just the hexadecimal value
    - When printing a merged delivery manifest, print the various items, not just a stack summary

Version: 2.9.0
Date: 2026-08-06
  Major Features:
    - Rewrote the request processor to cover more situations where multiple providers exist but not all are available. This should consistently provide better matches and distribution across multiple providers. There may be some obscure problems lurking in extreme corner cases, so any bug reports are welcome.
  Changes:
    - add 'ltn-list-refuel-excluded' console command to show which locomotives are not considered for refueling in LTN.
    - reworked some of the locale strings, especially around pluralisation. If you maintain a language pack for LTN, you may need to update it. LTN officially only supports English and German.
    - If no provider for a delivery is available, the console message now contains a breakdown why existing providers couldn't be selected.
    - When printing a network id, now list the various networks, not just the hexadecimal value
    - When printing a merged delivery manifest, print the various items, not just a stack summary

Version: 2.8.2
Date: 2026-07-30
  Bugfixes:
    - If a chosen provider stop was inaccessible, LTN would report "no train found ..." even if more than one stop could provide items.
      LTN Now iterates through all provider stops if more than one exists. based on a discussion on the forums with @deadbyte and @pavel.recnik
  Changes:
    - backport 2.1 changes

Version: 2.8.1
Date: 2026-06-22
  Bugfixes:
    - Ensure that remote API calls can find stops for fluids (fixes #67, thank you @wildd0g for reporting).
  Changes:
    - Have the very first Update Dispatcher API call after scheduling a delivery to match subsequent API calls. (addresses comment in #49 by @wildd0g).

Version: 2.8.0
Date: 2026-05-28
  Changes:
  Bugfixes:
    - When a train contains an item with a quality other than normal arrives at a provider that supplies the
      same item in quality normal, the output got confused and sent out the wrong signal. Reported by @Odhrean in #47
    - Ensure that the Request_By_Stop values accurately reflect station requests before dispatching. Reported by @wildd0g in #48.
  Minor Features:
    - Support locomotive types that do not need refueling. Expose a new remote API where such mods can register with LTN
      to have their locomotives excluded from refueling.

Version: 2.7.1
Date: 2026-05-24
  Changes:
    - When removing a mod that provides surface connections, clean up existing connection references
      in deliveries, otherwise on_dispatcher_updated will not fire until all invalid entities have
      disappeared
  Bugfixes:
    - Ensure that no duplicate surface connections are listed when sending dispatcher updates
    - When trains switch surfaces often, the train_selected count could have gotten lost
    - If an entity representing a surface connection gets invalidated, the on_dispatcher_updated event
      may have been silently discarded.
  Minor Features:
    - Add clarification and documentation for other mods that use cross-surface connections with LTN.
      Makes [LTN - Space Exploration Integration](https://mods.factorio.com/mod/ltn-space-exploration) work well.

Version: 2.7.0
Date: 2026-05-12
  Bugfixes:
    - Fixed crash bugs, reported by @kratons123 (#32), @smittythesmith (#34), @afatsum72 (#36),
      @Giuzu (#40), @tundy (#43, #57), @xyzzycgn (#52), @ArhangeL1790 (#55), @theojk2 (#56), @CoreNest (#58)
      and many more.
    - Fix support for double-ended trains (and single endeded stations). Reported by @lamhoangsudo and @Que914
      on the forums
  Changes:
    - Make all .log and .printmsg statements lazy; this should help a bit with FPS.
  Minor Features:
    - new startup setting to control Train Limit for depot stations

Version: 2.6.0
Date: 2025-12-17
  Changes:
    - Implement a fairer train selection algorithm that does not select by path length. This
      is controlled by the `ltn-depot-fudge-factor` setting. If the setting is 0, the old, distance-based
      algorithm is still used.
    - Use train_manager to compute travel distance between stations, replace the simple 'shortest path as the crow flies' algorithm

Version: 2.5.1
Date: 2025-11-24
  Bugfixes:
    - fix crash bug when comparing surfaces (reported by many people on the Forum)

Version: 2.5.0
Date: 2025-11-20
  Minor Features:
    - add new event, `on_delivery_reassigned`; gets raised when a delivery moves from one train to another.
    - add new setting, `Advanced Cross-Surface Delivery` to control deliveries in multi-surface networks.
  Changes:
    - when a refuel station has no fuel signals, turn its lamp gray, not cyan
    - when enabling detailed messages, report if a station uses the default network id (not receiving a
      network id signal)
    - remove train limit from LTN stops and remove any signal to change train limits
    - upper limit for refuel interrupt now uses <=, this allows setting '1' as a value.
  Bugfixes:
    - fix crash with fuel station not having fuel signals right after construction

Version: 2.4.3
Date: 2025-11-17
  Bugfixes:
    - remove fuel station and depot status when a stop changes from a depot/fuel station to something else

Version: 2.4.2
Date: 2025-09-28
  Changes:
    - debug logging is now controlled by an int setting to provide different levels of logging.
  Bugfixes:
    - fix crash when another mod adds a temporary refueling record at the beginning of the schedule
    - make sure that any freshly minted train that gets sent to a depot for the first time really gets
      the wait condition for the depot. Reported by @mikegarrison on the forums

Version: 2.4.1
Date: 2025-09-27
  Bugfixes:
    - fix a crash when using a depot or fuel station that is not connected to a rail (reported by @YenzRahbek on the forum)
    - fix a crash when reading schedule conditions does not contain a constant (reported by @Generalisator on the forum)
  Changes:
    - setting 'ltn-depot-fluid-cleaning' to -1 will always clean all fluids from the train

Version: 2.4.0
Date: 2025-09-26
  Changes:
    - When updating the schedule, try to keep the depot stop valid all the time
    - Add setting to choose between refueling with an interrupt or dynamic (LTN controlled) refueling
    - Implement dynamic refueling (controlled by LTN)
    - Default for 'ltn-provider-ignore-stopped-train' setting is changed from `true` to `false` (Issue #26, reported by @Quetzler on github)
  Bugfixes:
    - When a station changes status (depot -> fuel stop or regular stop, fuel stop -> depot etc.),
      ensure that all status bits are correctly updated. Fixes #28, reported by @Spacey42 on the forum)

Version: 2.3.4
Date: 2025-06-23
  Changes:
    - restore the behavior that the virtual signals for the lamp color are only present on the green wire. Add documentation.
    - allow negative amount of fuel for refuel station (treat it as positive). Allows using the LTN combinator to provide fuel amounts.
  Bugfixes:
    - fuel station lamp switched to blue when train parked, then back to cyan when train leaves

Version: 2.3.3
Date: 2025-05-09
  Bugfixes:
    - fix broken GetNextLogisticStop function (Reported by @harag-on-stream on Github, PR #18. Thank you!)
    - when a train is put under LTN control, it is removed from a train group first (Suggested by @wchristian on Github, #17. Thank you!)
  Changes:

Version: 2.3.2
Date: 2025-03-21
  Changes:
    - Make schedule parsing more robust after someone managed to trigger the `assert(record.provider ~= record.requester)` assert. Reported by @labminto on the mod forum.

Version: 2.3.1
Date: 2025-03-20
  Bugfixes:
    - Fix the prototype meld statements
    - Explicitly initialize the storage depot array. Fixes #14, reported by @ITZtephen on github

Version: 2.3.0
Date: 2025-03-11
  Changes:
    - refactor schedule management with new LuaSchedule API
    - add new station type 'fuel station'
    - add new virtual signal 'ltn-fuel-station' to declare a stop to be a fuel station
    - add configuration option 'ltn-schedule-fuel-station' to enable/disable fuel station support
    - add configuration option 'ltn-schedule-reset-interrupts' to enable/disable schedule reset
    - add configuration option 'ltn-schedule-reselect-depot' to enable depot changes within a network
    - [API] add attribute `is_fuel_station` to `ltn.TrainStop` to show whether this is a fuel station
    - [API] add attribute `fuel_signals` to `ltn.TrainStop` for the fuel conditions added to the refuel interrupt
    - trains will reselect a depot in their network when leaving requester and 'delivery ends at requester' is active
    - Hide LTN internal entities (stop lamp + combinators) from Factoriopedia

Version: 2.2.1
Date: 2025-02-27
  Bugfixes:
    - fix crash when renaming a non-LTN entity (e.g. a spidertron). Reported in the mod forum by @Nekrobot, thank you!
  Changes:

Version: 2.2.0
Date: 2025-02-26
  Bugfixes:
    - fix typo in dispatcher that caused crashes when recomputing shipmends because of too many stacks
  Changes:
    - Changed default network value from -1 ("all networks") to 0 ("no networks"). This affects any station
      that has no explicit network id signal connected. Rationale for that change is that before this release,
      turning off a connected combinator (LTN or constant combinator) will activate the station for all
      networks instead of turning it off. If your setup relies on the default signal being "-1", set it
      explicitly in the LTN settings.
    - Add a new setting "Requesters ignore stopped trains" that allows ignoring unloading trains when scheduling
      new requests

Version: 2.1.2
Date: 2025-02-25
  Changes:
    - enforce that only items can be put into a merged delivery (Same as #9 by @abrenneke, thanks for the PR!)

Version: 2.1.1
Date: 2025-02-23
  Changes:
    - support quality for cargo/fluid wagons (they might have larger inventories).
    - harden the signal processing to only allow item/fluid signals.

Version: 2.1.0
Date: 2025-02-12
  Changes:
    - support item quality for requesters and providers.

Version: 2.0.3
Date: 2025-02-06
  Bugfixes:
    - Fix "unscheduled cargo" messages even if everything is ok. (#3, reported by @Litcube)

Version: 2.0.2
Date: 2025-02-05
  Bugfixes:
    - Fix fluid capacity calculation (change for factorio 2.0 API)
    - Fix crash with fluid deliveries (#2, reported by @disifere)
    - Fix crash with assertion failed (#1, reported by @Hoochie63)
  Changes:
    - Fix weird fractional stack reports for fluids
    - Improve short-circuit logic

Version: 2.0.1
Date: 2025-02-03
  Bugfixes:
    - Fixed the info.json (well, the *one* time I did not test it...)

Version: 2.0.0
Date: 2025-02-03
  Changes:
    - Ported to Factorio 2.0

Version: 1.18.6
Date: 2024-01-30
  Bugfixes:
    - Message delivery-removed-depot used fallback stop names instead of Rich Text #331

Version: 1.18.5
Date: 2023-08-30
  Features:
    - moved logistic ports to their own technology
    - new icon for logistic ports

Version: 1.18.4
Date: 2023-07-28
  Features:
    - Upgrade planner functionality for train-stop and port #323

Version: 1.18.3
Date: 2023-04-01
  Bugfixes:
    - get_next_logistic_stop returns nil when called from on_train_schedule_changed at delivery creation #319

Version: 1.18.2
Date: 2023-01-05
  Bugfixes:
    - skip over not existing position signals with error message instead of crashing outright

Version: 1.18.1
Date: 2022-12-13
  Bugfixes:
    - crash when on_train_changed_state is raised for trains stopped at invalid stops. Should only happen if scripts remove stops without raising script_raised_destroy.

Version: 1.18.0
Date: 2022-11-05
  Features:
    - Create deliveries across surfaces, train surface transitions have to be handled by 3rd party mods
    - added remote call connect_surfaces
    - added remote call disconnect_surfaces
    - added remote call clear_all_surface_connections
    - added remote call reassign_delivery
    - added remote call get_or_create_next_temp_stop
    - added remote call get_next_logistic_stop
  Changes:
    - added on_dispatcher_updated.new_deliveries as replacement for on_delivery_created
    - removed event on_delivery_created, running in same tick as dispatcher produced microstutter
  Bugfixes:
    - crash when deleting all stops in train schedule, if train is parked at requester and "Delivery completes at requester" enabled #312

Version: 1.17.1
Date: 2022-10-10
  Features:
    - create ghosts for Lamp and Combinator on stop death #307

Version: 1.17.0
Date: 2022-09-23
  Features:
    - added event on_delivery_created #304
  Changes:
    - added LuaTrain to on_delivery_pickup_complete #298
    - added LuaTrain to on_delivery_completed #298

Version: 1.16.10
Date: 2022-07-22
  Features:
    - use RichText [train-stop=uid] for stations
    - use RichText [train=uid] for trains
  Changes:
    - GPS tags disabled by default, was too spammy

Version: 1.16.9
Date: 2022-06-19
  Bugfixes:
    - additional merged delivery stack size check #271

Version: 1.16.8
Date: 2022-06-19
  Features:
    - show cargo as rich text in no-provider-found, provider-found, creating-delivery #283
    - added map-setting: Providers output existing cargo (default on), workaround for inserters stuck with items #272, #294

Version: 1.16.7
Date: 2021-11-17
  Bugfixes:
    - trains didn't break for temp stops, potentially overshooting and repathing to other stops

Version: 1.16.6
Date: 2021-11-14
  Bugfixes:
    - trains leaving requester didn't fully clean all delivery tables
    - trains entering depot with existing delivery raise on_delivery_failed #277

Version: 1.16.5
Date: 2021-11-07
  Features:
    - use rail_direction for temp stops #275
  Bugfixes:
    - schedules did not always reset when using conditional Depot Signals

Version: 1.16.4
Date: 2021-11-06
  Bugfixes:
    - Add handling of on_entity_cloned event #274

Version: 1.16.3
Date: 2021-06-30
  Bugfixes:
    - changes to ltn-depot-fluid-cleaning where not applied #269
    - trains entering depots with fluids also raise an alert

Version: 1.16.2
Date: 2021-06-28
  Bugfixes:
    - incorrect sprite sheet size for normal res output #267

Version: 1.16.1
Date: 2021-06-28
  Features:
    - graphics update by snouz #266

Version: 1.16.0
Date: 2021-03-26
  Changes:
    - find free trains using table.sort
  Bugfixes:
    - depot priority should be properly working now

Version: 1.15.7
Date: 2021-03-21
  Bugfixes:
    - also check signal.name and signal.type for virtual signals

Version: 1.15.6
Date: 2021-03-20
  Bugfixes:
    - skip over nil signal.name or signal.type, how can a signal name be nil in the first place?

Version: 1.15.5
Date: 2021-03-10
  Features:
    - trains entering depots with cargo raise an alert
    - trains entering depots can have fluid residue automatically removed #185
  Changes:
    - reset schedules at requester before raising API events #255

Version: 1.15.4
Date: 2021-02-27
  Features:
    - added setting to disable GPS tags

Version: 1.15.3
Date: 2021-02-16
  Bugfixes:
    - moved lamp controllers off grid, preventing adjacent lamps to connect to it #253

Version: 1.15.2
Date: 2021-02-06
  Bugfixes:
    - delivery timout messages accessed position data of stop entities without checking validity #251

Version: 1.15.1
Date: 2021-02-03
  Features:
    - added gps rich-text to station names in chat #246
    - increased verbosity of no-provider-found logfile entry #244
  Bugfixes:
    - subtracted delivery from providers twice #250

Version: 1.15.0
Date: 2020-11-26
  Features:
    - updated to Factorio 1.1

Version: 1.14.6
Date: 2020-10-04
  Features:
    - Hotkey disabling/enabling Dispatcher by Steinio, default ctrl-shift-D #234

Version: 1.14.5
Date: 2020-09-17
  Features:
    - Factorio alerts can be disabled per user
  Bugfixes:
    - on_provider events didn't include LuaTrain
    - on_requester_unscheduled_cargo_alert.unscheduled_load lacked type prefix

Version: 1.14.4
Date: 2020-09-13
  Changes:
    - pushed FLib to 0.3.3

Version: 1.14.3
Date: 2020-09-04
  Bugfixes:
    - increased TrainLeaves debug log verbosity
    - fluid deliveries sometimes incorrectly detected incomplete pickup due to lsb differences #230

Version: 1.14.2
Date: 2020-08-30
  Bugfixes:
    - disabled auto barreling on fluids used for alert icons #228

Version: 1.14.1
Date: 2020-08-28
  Bugfixes:
    - added missing delivery check in TrainArrives

Version: 1.14.0
Date: 2020-08-28
  Features:
    - updated to Factorio 1.0
    - use Factorio alert system for common warnings and errors
    - added cargo alerts

Version: 1.13.10
Date: 2020-07-28
  Features:
    - increased message level of empty-depot to warning #217
    - increased message level of no-train-found to warning #217

Version: 1.13.9
Date: 2020-06-06
  Features:
    - reworked German localisation #216
    - localisation for dropdowns

Version: 1.13.8
Date: 2020-05-29
  Bugfixes:
    - Checks adjusting requester amounts used stop.backer_name instead of stop.unit_number. https://forums.factorio.com/viewtopic.php?p=496164#p496164

Version: 1.13.7
Date: 2020-05-27
  Features:
    - updated icons

Version: 1.13.6
Date: 2020-05-26
  Changes:
    - replaced OpteraLib with FLib

Version: 1.13.5
Date: 2020-05-20
  Bugfixes:
    - multiple IO entities could be built on top of another #214
    - stops could connect to IO entities of different stops

Version: 1.13.4
Date: 2020-05-17
  Bugfixes:
    - Increased selection priority on secondary entities #213

Version: 1.13.3
Date: 2020-05-15
  Changes:
    - Updated secondary entity collisions using empty collision tables

Version: 1.13.2
Date: 2020-05-15
  Changes:
    - Updated secondary entity collisions using "not-colliding-with-itself"

Version: 1.13.1
Date: 2020-04-16
  Features:
    - added depot priority control signal
  Changes:
    - refactored on_stops_updated to be in line with base event naming conventions

Version: 1.13.0
Date: 2020-04-12
  Features:
    - use temp stops for train pathing, removes requirement of unique stop names by GloinTheDark #210

Version: 1.12.10
Date: 2020-04-10
  Changes:
    - optimized filtered event calls
    - changed error-invalid-stop-index to warning
  Bugfixes:
    - script_raised_destroy wasn't properly registered

Version: 1.12.9
Date: 2020-04-08
  Changes:
    - on_delivery_pickup_complete returns train inventory as actual_shipment

Version: 1.12.8
Date: 2020-04-01
  Features:
    - use event filters

Version: 1.12.7
Date: 2020-03-20
  Bugfixes:
    - removed support for train scedule conditions item/fluid > n https://forums.factorio.com/viewtopic.php?f=214&t=82576

Version: 1.12.6
Date: 2020-03-07
  Bugfixes:
    - prevent another possible call to invalid stop entity

Version: 1.12.5
Date: 2020-03-03
  Bugfixes:
    - fixed bug introduced with 1.12.4

Version: 1.12.4
Date: 2020-03-02
  Bugfixes:
    - fixed rare crash removing ltn entities in editor mode during dispatcher update phase

Version: 1.12.3
Date: 2020-02-23
  Changes:
    - refactored on_dispatcher_updated, on_delivery_pickup_complete, on_delivery_completed and on_delivery_failed to be in line with base event naming conventions

Version: 1.12.2
Date: 2020-02-12
  Changes:
    - updated license
  Bugfixes:
    - flagged LTN-Tracker rip-off as incompatible

Version: 1.12.1
Date: 2020-01-22
  Bugfixes:
    - fixed mipmap warning

Version: 1.12.0
Date: 2020-01-21
  Features:
    - updated to Factorio 0.18

Version: 1.11.9
Date: 2020-01-17
  Bugfixes:
    - switching isDepot on with parked train would not properly make the train available

Version: 1.11.8
Date: 2020-01-01
  Bugfixes:
    - Encoded position signal for carriage types counts incorrectly with backwards trains #200

Version: 1.11.7
Date: 2019-12-03
  Bugfixes:
    - global lookup tables are reset every time mod configuration changes

Version: 1.11.6
Date: 2019-11-07
  Bugfixes:
    - fixing broken stop indexes again

Version: 1.11.5
Date: 2019-11-05
  Bugfixes:
    - actually remove broken stop indexes found by 1.11.3 changes

Version: 1.11.4
Date: 2019-11-01
  Bugfixes:
    - removed left over debug logging

Version: 1.11.3
Date: 2019-10-30
  Changes:
    - push to stable 0.17.74
  Bugfixes:
    - prevent entering too large values in timeout settings #196
    - additional safeguards against invalid indexing

Version: 1.11.2
Date: 2019-10-07
  Bugfixes:
    - compare forces by object when merging forces
    - process request state didn't end tick update after running out of requests #196

Version: 1.11.1
Date: 2019-09-26
  Features:
    - check if requester, provider and train are on the same surface
    - check forces by object instead of name

Version: 1.11.0
Date: 2019-09-06
  Features:
    - stop iteration should be more robust
    - allow n-th tick stepping for all updates
    - request processing spread across multiple ticks
  Changes:
    - replaced setting "limit stops per tick" with "updates per tick"
    - added setting "update every n-th tick"
  Bugfixes:
    - stop name list wasn't updated correctly when removing invalid stops
    - some fixes to German setting translation

Version: 1.10.15
Date: 2019-08-17
  Features:
    - support script_raised_revive

Version: 1.10.14
Date: 2019-07-29
  Changes:
    - replaced custom NewGame+ call with base api on_pre_surface_cleared #186
  Bugfixes:
    - error-invalid-stop had no text assigned

Version: 1.10.13
Date: 2019-07-27
  Features:
    - Encoded position signal for carriage types https://forums.factorio.com/viewtopic.php?f=214&t=73122
    - reorganized encoded position signals in subgroups per carriage type
  Changes:
    - renamed internal position signal names, signals of rolling stock from mods can't be migrated and will be missing

Version: 1.10.12
Date: 2019-07-05
  Bugfixes:
    - fixed German translation #182

Version: 1.10.11
Date: 2019-05-28
  Changes:
    - depot inactivity is now in seconds
    - stop timeout is now in seconds
    - delivery timeout is now in seconds
    - removed 60 min limits for timeouts
  Bugfixes:
    - changes to stop timeout only applied after save and reload #178

Version: 1.10.10
Date: 2019-05-21
  Features:
    - support script_raised_built and script_raised_destroy
  Bugfixes:
    - ensure remote functions exist before calling them

Version: 1.10.9
Date: 2019-05-19
  Features:
    - add LTN entities to picker dolly blacklist
    - added map setting for default network ID #163

Version: 1.10.8
Date: 2019-04-21
  Bugfixes:
    - Stop distance cache is reset on version updates

Version: 1.10.7
Date: 2019-04-13
  Features:
    - Added on_dispatcher_no_train_found event #173
  Bugfixes:
    - Fixed nil error in debug log introduced in 1.10.6

Version: 1.10.6
Date: 2019-04-06
  Bugfixes:
    - Restore lamp color after fixing stop error #171
    - always start with stop updated after a config change, ensure consistent data and filled tables

Version: 1.10.5
Date: 2019-03-30
  Changes:
    - moved more functionality to Opteras Library
  Bugfixes:
    - signal names are generated properly for locomotives and wagons with localised_name

Version: 1.10.4
Date: 2019-03-19
  Changes:
    - moved functionality to Opteras Library
  Bugfixes:
    - renaming stops in editor can cause errors

Version: 1.10.3
Date: 2019-03-14
  Features:
    - added on_delivery_pickup_complete
  Changes:
    - removed get_ prefix and _event suffix from events
  Bugfixes:
    - fixed potential upgrade path errors

Version: 1.10.2
Date: 2019-03-07
  Features:
    - added Stack Thresholds, only for items of course
  Changes:
    - refactored code into modules
    - interface events return data formatted like base events, e.g. event.provided_by_stop, event.requests_by_stop
  Bugfixes:
    - fixed potential nil reference #157

Version: 1.10.1
Date: 2019-03-03
  Features:
    - recipes are more affordable with Bob Electronics
    - added circuit network as dependency for technology
    - fluid unloads signal fluids with constant -1 #154
  Changes:
    - switched dependency for creative-mode to the 0.17 re-release

Version: 1.10.0
Date: 2019-02-27
  Features:
    - updated to Factorio 0.17
    - new thumbnail
    - status lamp works without power

Version: 1.9.11
Date: 11.2.2019
  Changes:
    - removed placeholder dependency for Noxys Multidirectional Trains, use old versions at own peril

Version: 1.9.10
Date: 10.2.2019
  Features:
    - added interface on_delivery_completed_event, {delivery = delivery, trainID = trainID}
    - added interface on_delivery_failed_event, {delivery = delivery, trainID = trainID}
    - added Provided_by_Stop to on_dispatcher_updated_event
  Bugfixes:
    - mining or destroying a train carriage will once again fail attached delivery
    - Interface Stop data requester_priority always returned 0
    - typo reqestPriority in initialization

Version: 1.9.9
Date: 3.2.2019
  Bugfixes:
    - Desync from 1.9.8 changes to update interval and stop index

Version: 1.9.8
Date: 3.2.2019
  Features:
    - support for rewritten Noxys Multidirectional Trains https://github.com/CyaNox/Noxys_Multidirectional_Trains/pull/8
    - added Dispatcher.UpdateInterval to Interval
  Bugfixes:
    - Interface reported nil thresholds for error state stops

Version: 1.9.7
Date: 13.1.2019
  Features:
    - added setting "limit stops per tick"
    - invalid stops have IO entities and references removed when encountered during runtime
  Bugfixes:
    - trying to write or read from invalid stop IO entities no longer crashes
    - blueprints of ltn ports preserve circuit connections
    - placing stops next to each other no longer links the wrong IO entities

Version: 1.9.6
Date: 12.12.2018
  Features:
    - added logistic port if cargo ships is active
  Changes:
    - performance tweaks
  Bugfixes:
    - handle layered icons of different sizes

Version: 1.9.5
Date: 7.12.2018
  Changes:
    - license exempts streaming from no commercial

Version: 1.9.4
Date: 16.11.2018
  Features:
    - lamp colors can also be read through red wire
    - cables from hidden combinator to lamp no longer originate in the middle of the lamp sprite

Version: 1.9.3
Date: 23.10.2018
  Bugfixes:
    - fix corrupted stops in on_configuration_changed
    - remove corrupt stops if fixing fails

Version: 1.9.2
Date: 15.10.2018
  Bugfixes:
    - left over init from 1.9.0 caused error #141
  Changes:
    - renamed remote interface ltn-interface to logistic-train-network

Version: 1.9.1
Date: 14.10.2018
  Bugfixes:
    - stops are removed before surface deletion #139
    - added creative mode blacklisting to on_load
  Changes:
    - turned remote interface callbacks into events
    - added interface demo to /Interface_Demo/control.lua

Version: 1.9.0
Date: 11.10.2018
  Features:
    - added remote interface callbacks to recieve stop and dispatcher data
  Bugfixes:
    - Trains arriving at depots in error state will not be added to available train list

Version: 1.8.2
Date: 2.10.2018
  Bugfixes:
    - setting Stop timeout was missing some description
    - changing "Stop is Depot" signal to 0 didn't remove available train
    - deactivating a depot through circuit condition didn't remove available train
    - short circuited depot didn't remove available train

Version: 1.8.1
Date: 12.9.2018
  Bugfixes:
    - on_load checks for corrupt stops

Version: 1.8.0
Date: 17.8.2018
  Features:
    - added optional circuit conditions to schedules
  Changes:
    - enabled read from train for all ltn stops by default
    - enabled send to train for all ltn stops by default
    - generated schedules use ≥ (ltn stops still parse > for loading list output)

Version: 1.7.13
Date: 29.7.2018
  Features:
    - added notifications for skipping request processing due to no transport capacities in depot
    - spam filter works with no-train-found notifications #128

Version: 1.7.12
Date: 20.7.2018
  Bugfixes:
    - recreate stops missing from global stop list in on_configuration_changed
  Changes:
    - removed incompatible flag of there-is-my-ghost 0.16.7 seems to work well with LTN
    - removed creative mode from optional dependencies until it's updated to 0.16

Version: 1.7.11
Date: 15.7.2018
  Changes:
    - flagged there-is-my-ghost as incompatible until that mod stops messing up LTN's composite stop entity

Version: 1.7.10
Date: 17.6.2018
  Bugfixes:
    - Avoid nil error when station is renamed during build #122
  Changes:
    - pushed to 0.16.51 stable

Version: 1.7.9
Date: 31.5.2018
  Bugfixes:
    - newly created deliveries reset stop lamps from blue to yellow
    - FARL (and possibly other mods) could mine IO entities

Version: 1.7.8
Date: 23.5.2018
  Bugfixes:
    - crash Key "icon_size" not found #116

Version: 1.7.7
Date: 12.5.2018
  Changes:
    - pushed to 0.16.36 stable
    - added creative mode (fix for 0.16) to optional dependencies
    - added requester network id to provider not found message
    - added requester & provider merged network id to train not found and train found message
    - moved train not found message to from detailed to notification level

Version: 1.7.6
Date: 37.3.2018
  Features:
    - parked trains controlled by LTN are signalled with blue lamp #106

Version: 1.7.5
Date: 3.3.2018
  Bugfixes:
    - Nil reference Error when deconstructing stop with set network id #107

Version: 1.7.4
Date: 17.2.2018
  Changes:
    - Replaced lua signal merging with api function

Version: 1.7.3
Date: 10.2.2018
  Bugfixes:
    - Error when copy-pasting station names https://forums.factorio.com/viewtopic.php?f=214&t=57578 and #102

Version: 1.7.2
Date: 3.2.2018
  Features:
    - remove filters and locked slots from trains entering a depot
    - support entity icons with sizes other than 32x32 https://forums.factorio.com/viewtopic.php?f=48&t=57151
  Bugfixes:
    - renaming could cause wrong stations being removed from station name list https://forums.factorio.com/viewtopic.php?f=214&t=57371
  Removed:
    - Chinese translation, please use a language pack like https://mods.factorio.com/mod/zh-CN

Version: 1.7.1
Date: 20.1.2018
  Bugfixes:
    - automatically generated icons are always cropped to 32x32
  Changes:
    - Updated Chinese translation

Version: 1.7.0
Date: 20.1.2018
  Features:
    - Added binary encoded network ID
    - Encoded position signals have unique icons
    - Encoded position signals are properly grouped by locomotive and wagon types
  Changes:
    - Removed obsolete migration

Version: 1.6.4
Date: 14.1.2018
  Bugfixes:
    - Trains are reinitialized each configuration change to catch changes to locomotives and wagons
    - Trains where not properly removed from lookup table when leaving stops

Version: 1.6.3
Date: 7.1.2018
  Bugfixes:
    - Error when removing depot in state yellow #95
  Changes:
    - pushed base to 0.16.14

Version: 1.6.2
Date: 30.12.2017
  Features:
    - in game changelog
  Changes:
    - pushed base to 0.16.8
    - data phase item detection is more robust
    - migrating from versions older than 1.1.1 displays error message

Version: 1.6.1
Date: 20.12.2017
  Features:
    - hr graphics
    - yellow depot lamp color indicating a train with assigned delivery still being parked
  Removed:
    - migration support for versions < 1.1.1 (final Factorio 0.14 release)
  Changes:
    - stop timeout description no longer mentions inactivity #83
    - train references from MainLocomotive.unit_number to train.id
    - deliveries will be removed instantly if the assigned train changes composition e.g a wagon is removed
    - lamp colors update faster
  Bugfixes:
    - mining a single locomotive parked at an ltn stop would not update the stop

Version: 1.6.0
Date: 14.12.2017
  Features:
    - updated to Factorio 0.16
    - train composition signal for artillery wagon

Version: 1.5.5 - last build for Factorio 0.15
Date: 14.12.2017
  Features:
    - added depot inactivity setting
  Changes:
    - Mod Description includes LTN

Version: 1.5.4
Date: 8.12.2017
  Features:
    - option to reset delivery and schedule when trains leave requester

Version: 1.5.3
Date: 1.12.2017
  Features:
    - lamp outputs number of active deliveries as value of yellow signal (green wire only)
    - lamp outputs error code as values of red/pink signal (green wire only)
    - depots, short circuited and disabled stops reset stops active deliveries count completely (use to reset stops showing wrong counts)
  Bugfixes:
    - active deliveries to/from a stop sometimes isn't properly updated

Version: 1.5.2
Date: 13.11.2017
  Changes:
    - station time out from inactivity to time passed
    - reduced overhead in on_train_changed_state
    - pushed base to 0.15.37 (stable)

Version: 1.5.1
Date: 3.11.2017
  Changes:
    - updated Chinese translation
    - stops deactivated by circuit condition or other scripts are not updated
    - short circuited stops are skipped without reading circuit signals
    - short circuit and deactivated error state take priority over duplicate name

Version: 1.5.0
Date: 17.10.2017
  Features:
    - added request priority control signal #22
  Changes:
    - changed provider priority icon to be in line with request priority
    - changed provider prioritization to provider priority > #existing deliveries from provider > amount #69
  Bugfixes:
    - request threshold icon to show ≤ instead of ≥
    - locked slots where subtracted from total train slots instead of per wagon

Version: 1.4.14
Date: 13.10.2017
  Features:
    - added mod setting "Dispatcher Enabled"

Version: 1.4.13
Date: 6.10.2017
  Changes:
    - reverted base dependency to 0.15.34 (stable)

Version: 1.4.12
Date: 2.10.2017
  Features:
    - allowed negative provider priority again #64
  Changes:
    - pushed base to 0.15.35

Version: 1.4.11
Date: 29.9.2017
  Features:
    - thresholds are read as absolute values
    - ignore negative control signals except thresholds

Version: 1.4.10
Date: 15.9.2017
  Changes:
    - improved circuit signal read performance
    - pushed base to 0.15.34

Version: 1.4.9
Date: 26.8.2017
  Features:
    - added localized mod title and mod description
  Bugfixes:
    - fixed possible integer overflow from mod settings
    - limit max values on stop and delivery timeout to 1 hour
    - limit other int settings to 2^32 -1

Version: 1.4.8
Date: 18.8.2017
  Features:
    - added more details to debug log messages
  Changes:
    - "no provider found" warning message changed from message level 2 to 1
    - message level dropdown texts better reflect their behaviour

Version: 1.4.7
Date: 11.8.2017
  Bugfixes:
    - distance check could prevent better matching trains from being picked
    - error encoding train composition for trains longer than 31 carriages #55

Version: 1.4.6
Date: 6.8.2017
  Changes:
    - bumped required Factorio version to current stable
  Bugfixes:
    - Dispatcher picked trains closest to request stop instead of providing stop
    - local wagon capacity lookup table could potentially cause desync

Version: 1.4.5
Date: 1.8.2017
  Changes:
    - removed left over debug message

Version: 1.4.4
Date: 1.8.2017
  Changes:
    - performance optimizations
  Bugfixes:
    - deliveries where not properly reserved

Version: 1.4.3
Date: 30.7.2017
  Bugfixes:
    - fixed nil reference when no providers are available

Version: 1.4.2
Date: 30.7.2017
  Changes:
    - internally store train capacity for faster access when searching available trains
    - rewritten Dispatcher logic

Version: 1.4.1
Date: 30.7.2017
  Bugfixes:
    - Items where not removed from providers after being added to an order
    - orders where merged between different requester

Version: 1.4.0
Date: 17.7.2017
  Features:
    - Dispatcher is no longer limited to 1 train/s
  Changes:
    - Dispatcher goes through requests by age of requests/item instead of requests/stop
    - spread dispatcher update over 3 ticks

Version: 1.3.5
Date: 8.7.2017
  Features:
    - "message level" for console messages only (no level 4: debug)
    - "write debug logfile" checkbox for debug log generation into Factorio-current.log
  Removed:
    - "log level" and "log output" settings
  Changes:
    - provider prioritization making deliveries merge more reliably (#trains > provider priority > #existing deliveries from provider > amount)
  Bugfixes:
    - potential nil reference during stop update

Version: 1.3.4
Date: 21.6.2017
  Changes:
    - code cleanup
    - train state change and train created events are only active if LTN stops exist

Version: 1.3.3
Date: 18.6.2017
  Changes:
    - automatically set output combinator limit
    - exceeding output slot size results in some signals being not generated by the output and a console message

Version: 1.3.2
Date: 4.6.2017
  Changes:
    - Chinese translation
  Bugfixes:
    - fixed error with no longer existing items #43

Version: 1.3.1
Date: 2.6.2017
  Features:
    - added support for force merging
  Changes:
    - added force to deliveries

Version: 1.3.0
Date: 2.6.2017
  Features:
    - Request Threshold and Provide Threshold
    - Disable Warnings Messages control signal #34
    - limit messages to force where possible #40
    - workaround for fluid wagon residue #31
  Removed:
    - Minimum Delivery Size and Ignore Minimum Delivery Size
    - Best Effort, Provide Threshold = 1 does the same now
    - toggle to loading list, stops only show expected inventory after loading

Version: 1.2.8
Date: 24.5.2017
  Features:
    - added German locale
    - added 128x128 tech icon
    - overloaded trains no longer cause requesters to flip to providers during delivery #33
  Changes:
    - set expected train inventory to default to active
  Bugfixes:
    - bug in Chinese locale

Version: 1.2.7
Date: 19.5.2017
  Bugfixes:
    - potential nil references in first_signal and stop ghost entities

Version: 1.2.6
Date: 17.5.2017
  Bugfixes:
    - error when schedule is referencing non existing items

Version: 1.2.5
Date: 16.5.2017
  Changes:
    - replaced workaround with get_fluid_count and get_fluid_contents

Version: 1.2.4
Date: 13.5.2017
  Features:
    - added toggle between output of positive load, negative unload amount and expected train inventory after (un-)loading
    - added Chinese locale by 745275633
    - formated setting descriptions, should be less wall of text
  Bugfixes:
    - a crash when adding carriages to trains parked at provider or requester

Version: 1.2.3
Date: 9.5.2017
  Features:
    - duplicate names are checked across all train-stops instead of only LTN Stops
  Changes:
    - improved performance of checking duplicate names by using events introduced with 0.15
  Bugfixes:
    - desync https://forums.factorio.com/viewtopic.php?f=23&t=46873
    - dispatcher picks providers with incompatible train length

Version: 1.2.2
Date: 7.5.2017
  Changes:
    - overloading trains updates delivery size once per update interval (before update was only done once train leaves provider)
  Bugfixes:
    - overloading trains reserved too much of an item/fluid in provider
    - fluid deliveries where accidentally deleted at departure from provider

Version: 1.2.1
Date: 1.5.2017
  Changes:
    - updated mod setting descriptions
    - replaced floating-text hack to get inventory sizes with 0.15 functions
    - added support of icons{} to signal generation

Version: 1.2.0
Date: 29.4.2017
  Features:
    - updated to Factorio 0.15
    - added support for any Fluid Wagon for fluid transport
    - config.lua settings moved to options-mod settings
  Removed:
    - support of RailTanker (RailTankers will be ignored, removed fake item conversions)
    - removed grey detection signal from output
  Changes:
    - short circuit detection uses network id

Version: 1.1.3 - last version for Factorio 0.14
Date: 19.5.2017
  Bugfixes:
    - fixed error when schedule is referencing non existing items
    - fixed potential nil references in first_signal and stop ghost entities

Version: 1.1.1
Date: 24.4.2017
  Features:
    - speed up loading by skipping parts of initialization according to old_version
  Changes:
    - automatically remove orphaned lamp control entities
    - messages differing only in item count are treated as the same message by the message filter
    - decreased delivery-removed-timeout and delivery-removed-train-invalid from log level 2 to 1
  Bugfixes:
    - deconstruction of broken stops properly removes stop and surrounding I/O entities