Changelog

Version: 4.1.2
Date: 2026-4-4
  Bugfixes:
    - Fixed a crash related to compatibility with mods that alter how terrain is generated

Version: 4.1.1
Date: 2026-4-4
  Bugfixes:
    - Fixed a crash caused by an oversight in handling of deleted surfaces

Version: 4.1.0
Date: 2026-4-2
  Minor Features:
    - Added capability to mark sites of ongoing cleanup operations with map pins

Version: 4.0.1
Date: 2026-4-1
  Changes:
    - Adjusted default value for setting "cleanup speed" to be slightly faster
    - Adjusted default value for setting "nominal map size" to be slightly less oversized
  Locale:
    - Corrected, simplified and clarified descriptions for mod settings
  Info:
    - Corrected date error in changelog for version 4.0.0

Version: 4.0.0
Date: 2026-3-31
  Major Features:
    - Overhauled algorithm to be even more performant, again
    - Added capability to compensate for map size, at the cost of increasing performance impact as the size of the save grows
  Minor Features:
    - Added command "biter-cleanup-map-size", which displays information about the number of chunks in a save.
    - Added command "biter-cleanup-cleaning-speed", which displays information about how often the mod will begin cleaning.
    - Added command "biter-cleanup-recount-chunks", which forces the mod to recount the number of chunks in the save.
  Changes:
    - Removed obsolete commands
    - Setting "captive biters produce creep" is now enabled by default
    - Tweaked defaults for other settings to balance cleanup rate and performance impact
    - Added new settings with reasonable defaults for the map size compensation capabilities
  Bugfixes:
    - Issues related to tracking the game's state have been resolved by virtue of no longer tracking the game's state.
  Locale:
    - Renamed some settings
  Info:
    - The new algorithm dramatically alters the impacts of the settings carried over from past versions.
      It is advised that players reset their mod settings to the defaults and tweak from there.
    - The new commands are intended to help users optimise their mod settings or diagnose issues. They may also be freely
      used to satisfy the curious, though "biter-cleanup-recount-chunks" may take a moment to run on large saves.
    - If "biter-cleanup-recount-chunks" ever reports a discrepancy, please contact the mod author to report this.

Version: 3.0.3
Date: 2025-7-6
  Bugfixes:
    - Fixed a crash that occurred when using the new "biter-cleanup-scan" or "biter-cleanup-count" commands with an invalid
      surface name/index
  Locale:
    - Adjusted command output text to be more consistently worded between commands

Version: 3.0.2
Date: 2025-7-5
  Bugfixes:
    - Corrected oversight that could cause decals on one surface, but with the same x-y position and properties as a decal on
      another surface, to be falsely considered already tracked when scanning
  Info:
    - Adjusted formatting of changelog to be more readable

Version: 3.0.1
Date: 2025-7-5
  Bugfixes:
    - Corrected oversight that could cause unrelated decals to become untracked when deleting a surface

Version: 3.0.0
Date: 2025-8-25
  Major Features:
    - Overhauled algorithm to be vastly more performant and look more natural
  Minor Features:
    - Added command "biter-cleanup-scan" which allows players to ensure no creep decals are missed
    - Added command "biter-cleanup-count" which allows players to monitor global or per-surface cleaning progress
    - Added command "biter-cleanup-list" which allows players to monitor cleaning progress on every surface
  Changes:
    - Biter creep will now decay on any surface, rather than just on Nauvis as before
    - Recategorised "lichen-decal", "worms-decal" and "shroom-decal" from primary to secondary, to prevent them from being
      arbitrarily removed on Gleba
    - Settings have been reworked and had their default values tweaked to suit the new algorithm
  Info:
    - It is recommended to restore all settings to default if updating from a previous version, and then tweak to taste again
      from there. This is due to some settings being removed entirely, some new ones being added, and some that persist from
      previous versions having dramatically altered performance impacts.
    - The new algorthm works by scanning each surface in the save on initialisation, and then keeping internal lists updated
      via localised scans triggered by certain events. This seems reliable per testing during development, but the command
      "biter-cleanup-scan" has been added as a backup just in case. If you find yourself needing to use it, please let the
      developer know via the discussion page on the mod portal.

Version: 2.3.0
Date: 2025-7-5
  Changes:
    - Added a setting to make captive spawners able to sustain biter decals (off by default)

Version: 2.2.1
Date: 2024-12-14
  Bugfixes:
    - Fixed mod leaving old active chunk markers on the map when loading after mod configuration changes

Version: 2.2.0
Date: 2024-11-26
  Major Features:
    - Mod now remembers progress across saves and loads
    - Mod is now fully compatible with multiplayer
  Minor Features:
    - Added ability to mark the active chunk on the map (controllable with setting)
  Changes:
    - Moved all settings except for operation interval from startup settings to map settings, enabling them to be changed on
      the fly while in-game
    - Reduced default nest check radius from 32 to 16
  Info:
    - Clarified mod setting names and tooltips

Version: 2.1.1
Date: 2024-11-25
  Info:
    - Corrected punctuation error in mod setting tooltips

Version: 2.1.0
Date: 2024-11-25
  Minor Features:
    - Added setting to control how the mod selects chunks to process
  Changes:
    - Reordered settings in menu
  Info:
    - Slightly tweaked wording of mod setting tooltips

Version: 2.0.1
Date: 2024-11-23
  Info:
    - Corrected date error in changelog

Version: 2.0.0
Date: 2024-11-23
  Changes:
    - Changed the scanning to be done on an individual chunk basis (randomly selected) to avoid freezing large worlds
    - Removed scan/cleanup interval setting as it is not used by the new algorithm
    - Due to the change in scanning, decal removal is now random within each chunk rather than random across all of Nauvis
  Minor Features:
    - Added setting to adjust speed of scanning within a chunk to avoid stutter
  Info:
    - Added performance impact information to mod setting tooltips

Version: 1.1.0
Date: 2024-11-21
  Optimizations:
    - Improved the way random decals are chosen to be faster and more random
  Bugfixes:
    - Fixed potential crash that may occur if a biter decal is removed (e.g. with waterfill) after a list is compiled but
      before it is checked

Version: 1.0.1
Date: 2024-11-20
  Bugfixes:
    - Removed debug dialogue printed to chat that was left in unintentionally

Version: 1.0.0
Date: 2024-11-20
  Features:
    - Setting to adjust the frequency of cleanups (default once every 10 minutes)
    - Setting to adjust the speed of cleanups (default one decal every 10 ticks)
    - Setting to adjust the minimum distance from a nest at which a decal is removed (default 32 tiles)
    - Setting to adjust the area around a removed decal in which not-exclusively-creep decals should also be removed
      (default 8 tiles)
  Changes:
    - Worms are now also considered when determining if a decal should be cleaned
  Info:
    - Reworded a change in the changelog from 0.2.0 to better reflect the actual operation of the mod.

Version: 0.2.1
Date: 2024-11-20
  Info:
    - Fixed minor discrepancy between the descriptions in the mod itself and on the mod portal

Version: 0.2.0
Date: 2024-11-20
  Minor Features:
    - When a biter decal is removed, other decals spawned by biter nests but not exclusively used by them will be removed in an
      area around the target decal
  Changes:
    - Biter decals will now be considered for removal in a random order rather than sequentially, to make the removal less
      jarring to watch
  Bugfixes:
    - Fixed crash related to reading modded spawners' corpse definitions

Version: 0.1.0
Date: 2024-11-20
  Major Features:
    - Initial release