Changelog

Version: 1.2.2
Date: 2026-10-30
  Changes:
    - Replaced the debug setting with the /wic debug command.
    - Offshore pumps can now be placed on snow-covered shallow water and mud.
    - Shallow water and mud now keep their original tiles in summer and are covered with snow in winter; heating opens water only at pump intakes.
    - Buildings flooded by offshore pumps now die instead of disappearing silently.
  Bugfixes:
    - Preserved Crash Site buildings when upgrading from versions before 1.2.0.

Version: 1.2.1
Date: 2026-10-25
  Bugfixes:
    - Preserved water beneath existing paving and foundations when adding the mod to a save
  Features:
    - Added /wic-uninstall to prepare saves before removing the mod. Wait for the completion message, then save the game and disable the mod.
  Compatibility:
    - Older versions of Dynamic Rain can now be used together with this mod; winter weather control requires Dynamic Rain 1.1.1 or later.
    - Removed the minimum Area Heating Tower version requirement; older versions use the game's normal tile heating updates.

Version: 1.2.0
Date: 2026-10-22
  Features:
    - Added mild, cold and severe winters, an introductory season schedule and random seasons afterward
    - Added a season forecast with a countdown, winter effects and preparation tips, plus a chat warning before winter
    - Added blinking warning icons and silent map alerts for blocked offshore pumps
  Compatibility:
    - Improved compatibility with other mods when buildings freeze or thaw
    - Rain and thunderstorms from Dynamic Rain now stop during winter
  Bugfixes:
    - Fixed freezing and thawing of terrain, landfill and paving
    - Fixed fish escaping seasonal freezing, including fish released by players

Version: 1.1.4
Date: 2026-10-15
  Features:
    - Added an ice spoil time setting in minutes: 20 by default, or 0 to disable spoilage. Applies to ice everywhere.
  Optimizations:
    - Improved performance and reduced lag spikes
    - Added an option to spread tile updates over time to reduce lag spikes when Area Heating Tower coverage changes.

Version: 1.1.3
Date: 2026-10-10
  Compatibility:
    - Improved Krastorio 2 compatibility: supported production buildings now receive winter penalties and require heating based on their size.
  Changes:
    - Moved seasonal building variants to a separate group at the end of selection lists.
    - Extra seasonal upgrade rules no longer clutter stored planners or their settings.
  Bugfixes:
    - Prevented unnecessary upgrades between seasonal versions of the same building or belt.
    - Preserved robot deconstruction orders during season changes.
    - Fixed a crash when holding a blueprint book with no selected blueprint.

Version: 1.1.2
Date: 2026-10-09
  Features:
    - Added optional snow drifts on snow terrain, light snow decals on snow and ice, and medium, small and tiny lithium ice formations only on smooth and rough ice.
    - Spring removes winter decorations immediately in the converted tile areas, without decorative collision checks.
    - Winter decorations retain their original collision boxes.
    - Snow decorations use the decorative layer and grow through rail paths, like snow-covered grass in Space Is Fake.
  Optimizations:
    - Reduced lag spikes during season changes.
  Bugfixes:
    - Preserved robot upgrade orders when buildings freeze or thaw.
    - Fixed configured upgrade planners skipping seasonal building variants.

Version: 1.1.1
Date: 2026-10-08
  Features:
    - Setting heating cost to 0 applies winter penalties without heating compensation.
    - With winter penalties disabled, buildings freeze behind the winter front and require heat, like on Aquilo.
    - Setting both winter penalties and heating cost to 0 disables building heating and winter effects.
  Bugfixes:
    - Fixed loading existing saves crash
    - Fixed fast replacement of seasonal buildings from Remote View.

Version: 1.1.0
Date: 2026-10-07
  Features:
    - Winter now bites into Nauvis production: after the snow front passes, unheated machines work 30% slower and consume 75% more energy by default.
    - Heating with heat pipes cancels both winter penalties. Heating costs scale with each machine's native heating_energy on Aquilo (33% by default), so central heating can be more economical than running a cold factory.
    - Mine frozen lakes for ice and open water access for offshore pumps. Each tile yields 10 ice; collected ice spoils and disappears after 20 minutes.
    - Melt ice into water in chemical plants as soon as oil processing is researched.
  Changes:
    - Default seasons now give you 3 hours of summer to prepare for 1 hour of winter. Existing saves keep their season settings.
    - Added Russian translations for mod settings.
  Bugfixes:
    - Heated ground and paving now thaw into their matching original tiles and freeze back when they cool
    - Fixed borders between frozen and thawed landfill.
  Compatibility:
    - Requires Factorio 2.1.13 or newer.

Version: 1.0.0
Date: 2026-09-07
  Compatibility:
    - Updated the mod for Factorio 2.1.

Version: 0.3.1
Date: 2026-05-25
  Bugfixes:
    - Fixed snow front restart after saving during freezing and then changing startup settings
    - Fixed season forcing command so it schedules the next opposite season from the actual map state
    - Fixed active snow fronts being interrupted by calendar season changes
  Compatibility:
    - Added compatibility for Dirt Path

Version: 0.3.0
Date: 2026-04-26
  Changes:
    - Reworked frozen tile handling and seasonal tile replacement logic
    - Frozen variants for supported tiles are now created automatically
    - Old saves may work incorrectly because of the tiles change in this version
  Compatibility:
    - Added compatibility for Wood Floors
  Features:
    - Added a debug option for troubleshooting

Version: 0.2.4
Date: 2026-04-25
  Changes:
    - Improved snow and ice smoothing so chunk updates are not applied while visible to players
  Bugfixes:
    - Fixed season status transitions when freezing and thawing finish
    - Fixed fish collision behavior when water freezes into ice

Version: 0.2.3
Date: 2026-04-24
  Changes:
    - Reworked season settings to use hours instead of raw ticks
    - Snow front speed is now shown in m/s
    - Improved setting names, descriptions, and ordering
  Features:
    - Added /wic-next-season-in-minutes <minutes> admin command to force-set time until the next season

Version: 0.2.2
Date: 2026-04-21
  Compatibility:
    - Added support for Dredgeworks, Cargo Ships, AAI Vehicles: Ironclad

Version: 0.2.1
Date: 2026-01-13
  Bugfixes:
    - Fixed radar settings

Version: 0.2.0
Date: 2026-01-01
  Features:
    - Snow fronts disrupt radar operation, hiding previously revealed map areas

Version: 0.1.1
Date: 2025-12-31
  Changes:
    - You can't catch fish under the ice

Version: 0.1.0
Date: 2025-12-29
  Changes:
    - Initial release