- Added functions that prevent refunding the construction costs of buildings that were constructed by this system for free, when dismantled. This includes any pooled resources.
- Changed the get_under_city() function to include an optional faction parameter, so that only under-cities owned by the specified faction are returned. This optional parameter is currently used in all calls to the function. The function has also been renamed to aiut_get_under_city() to allow use by other mods.
- Removed the max build slots MCT setting as the system already handles that itself.
- Added a periodic call to an under-city's template condition() function every X turns. This should ensure that, as regions change, the under-city templates applied to them will adapt. The rate at which this periodic check happens is controlled by a new MCT setting.
- Changed some of the vanilla template conditions provided by this mod to account for the new periodic condition check.
- The vermintide template is no longer valid for regions owned by Rebels, as this causes a script error with CA scripts.

- Updated the pack for patch 4.2. No changes seemed necessary.

- Corrected a timing issue where starting under-cities were detected has being unfit for any under-city templates on turn 1, when the Allow Players MCT setting was enabled.
- Corrected an issue where enabling or disabling an under-building via MCT (after a campaign has started) was not correctly enabling or disabling the building.

- Added the aiut_ prefix to the API functions to prevent conflicts with other global functions from other mods.

- This system will now ignore new under-cities created by the Vermintide end-game crisis until the under-expansion phase of the crisis ends.

- Added support for saving and loading campaigns.

- Reworked the entire system. It is now superior to the previous system.
- Added some additional MCT settings. Some only exist after starting a campaign.
- Created an API that will allow this mod to work with modded under-buildings, if the mod authors choose to create under-city templates for this system to use.

Re-saved pack for patch 4.1. No changes made.

- Added MCT integration.