Changelog

Version: 1.4.0
Date: 2026.07.01
  Changes:
    - Belt and pipe orphans now raise distinct alerts, each with its own icon and text.
  Bugfixes:
    - Orphan alerts no longer disappear from the alert list after a few seconds; they are now
      refreshed every second for as long as the markers are shown.

Version: 1.3.1
Date: 2026.07.01
  Bugfixes:
    - Fixed a crash on Factorio 2.1 ("LuaEntity doesn't contain key neighbours"). The removed
      LuaEntity.neighbours API is replaced with underground_belt_neighbour (belts) and
      get_fluid_box_pipe_connections (pipes).

Version: 1.3.0
Date: 2026.07.01
  Features:
    - Added a shortcut-bar (toolbar) button that toggles orphan highlighting, mirroring the Shift+O
      keybind. The button stays lit while orphans are highlighted and turns off automatically when
      none are found or the last orphan is resolved.
    - Each highlighted orphan now also raises a clickable alert; clicking it in the alert list
      focuses the camera on the problematic belt/pipe, and it pings the map view.

Version: 1.2.3
Date: 2026.07.01
  Changes:
    - Updated for Factorio 2.1 (now requires base >= 2.1).
    - Republished as "orphan-finder-v21" for the 2.1 mod portal; no gameplay changes from 1.2.2.
  Bugfixes:
    - Scoped internal helper functions to the mod so they no longer risk clashing with other mods' globals.
    - Guard marker removal against already-invalid entities.
    - Clear a player's markers when they change surface.

Version: 1.2.2
Date: 25. 01. 2025
  Changes:
    - Rewrote control script to better support modded underground pipes with multiple connections

Version: 1.2.1
Date: 24. 01. 2025
  Changes:
    - Added option to choose if and how underground pipes are checked for orphans

Version: 1.2.0
Date: 23. 01. 2025
  Changes:
    - Updated to Factorio 2.0
    - Orphan sprite now glows at night for improved visiblity
    - Now considers underground belt to be an orphan if the other end is a ghost, to match pipe behaviour

Version: 1.1.3
Date: 28. 11. 2020
  Changes:
    - Updated to Factorio 1.1

Version: 1.1.2
Date: 29. 01. 2020
  Changes:
    - Updated to Factorio 0.18

Version: 1.1.1
Date: 27. 02. 2019
  Changes:
    - Updated to Factorio 0.17

Version: 1.1.0
Date: 23. 01. 2018
  Changes:
    - Updated to Factorio 0.16
    - Range setting moved to mod options
  Bugfixes:
    - Pipe logic fixed (thanks to syskill)

Version: 1.0.5
Date: 28. 04. 2017
  Changes:
    - Updated to reflect API change

Version: 1.0.4
Date: 28. 04. 2017
  Changes:
    - Updated to Factorio 0.15

Version: 1.0.3
Date: 27. 08. 2016
  Changes:
    - Updated to Factorio 0.14
    - Flow Control workaround removed as no longer necessary

Version: 1.0.2
Date: 26. 08. 2016
  Changes:
    - Now only matches underground pipes that end in "to-ground", for Flow Control compatibility

Version: 1.0.1
Date: 23. 08. 2016
  Changes:
    - Player-agnostic when removing markers, and removes player markers on leaving server