1. Update v1.5.4:
  2. General Gameplay
  3.  
  4. Survivalists’ Headquarters territory exploration threat decrease effect now stacks
  5.  
  6. 'Optimise Inputs' ability no longer lowers the Automaton Factory building output
  7.  
  8. It is no longer possible to research Criminal Reparation, Guard Immunity, Crime Elimination, Treatment and Housing Distribution policies without a built Council
  9.  
  10. Air Transport Hub now affects buildings inside the districts
  11.  
  12. Optimized performance during temperature change events in late game
  13.  
  14. [Fractured Utopias] Study Mementos community action can no longer be used to research a Cornerstone if no other research is available
  15.  
  16. [Fractured Utopias] Menders housing reindeer capacity is now influenced by district’s efficiency level
  17.  
  18. [Fractured Utopias] Effect text for the Emergency Essentials policy now matches the actual gameplay effect
  19.  
  20. [Fractured Utopias] Fixed 'Wine and Dine' Bohemians ability appearing available when there are no available Troupes after certain conditions are met
  21.  
  22. [Fractured Utopias] Fixed the Martial Law not decreasing the Guard Squad cost of the Organise Filtration Posts ability
  23.  
  24. [Fractured Utopias] Fixed a possibility of duplicated negotiation options for Bohemians
  25.  
  26. [Fractured Utopias] Fixed 'Study Mementos' Community Action not reducing Stockpile of Mementos
  27.  
  28. [Fractured Utopias] IEC sites can no longer be given to the Herders
  29.  
  30. [Fractured Utopias] Undying Outposts are no longer available for Beacon and IEC sites
  31.  
  32. [Fractured Utopias] Fixed warm output modifier not being applied to Logistic District if it is already affected by Proving Grounds
  33.  
  34. [Fractured Utopias] Goods Emporium proximity effect now stacks with Heat Auctions instead of overwriting it
  35.  
  36. [Fractured Utopias] Push district boundaries ability can now be used on deactivated district
  37.  
  38. ‘Plague’ Tale
  39.  
  40. [Fractured Utopias] Fixed the sudden huge spike of Plague infected citizens, which could lead to premature and unexpected Tale failure
  41.  
  42. [Fractured Utopias] New ability: Test Plague Therapies
  43.  
  44. Unlocks after searching Patient Zero Location
  45.  
  46. Can be used in districts with the Research Institute
  47.  
  48. Converts limited amount of contaminated into regular sick citizens; some will die during the process
  49.  
  50. Each use speeds up Plague Vaccine research
  51.  
  52. Does not apply retroactively to old Plague save states
  53.  
  54. [Fractured Utopias] Increased the amount of vaccines produced by Pharmaceutical Labs
  55.  
  56. [Fractured Utopias] Plague research costs fewer heatstamps
  57.  
  58. [Fractured Utopias] Contaminated and Vaccinated modifiers will no longer remain applied to the communities after Plague Tale is finished
  59.  
  60. [Fractured Utopias] Slightly increased the number of contaminated citizens when an outbreak occurs
  61.  
  62. [Fractured Utopias] Trust increase modifier after using vaccines is now visible on the Trust tooltip
  63.  
  64. [Fractured Utopias] Fixed Vaccinate Population objective not updating immediately after a death event occurs
  65.  
  66. [Fractured Utopias] Fixed ‘Boost Research’ ability not being available for the rest of Utopia Builder if ‘Accelerate Vaccine Production’ was active during the Tale ending
  67.  
  68. ‘Doomsayers’ Tale
  69.  
  70. [Fractured Utopias] Citizens leaving the city due to Doomsayers narrative events are no longer counted as deaths
  71.  
  72. [Fractured Utopias] Doomsayers’ Council animation pool was limited to better match their identity
  73.  
  74.  
  75. Achievements
  76.  
  77. [Fractured Utopias] ‘Art in Ruins’ achievement now no longer resets progress if the  worn-out district was disabled during the required 100 weeks
  78.  
  79. [Fractured Utopias] Fixed ‘We are not the same’ achievement not unlocking if Utopia builder was started eight times with a different Faction
  80.  
  81. [Fractured Utopias] Added additional safety checks to ‘Miracle Worker’ achievement to make sure only Plague deaths are taken into consideration
  82.  
  83. Interface
  84.  
  85. Major memory and object count optimizations to widgets
  86.  
  87. Pause game keybinding can now be changed
  88.  
  89. Improved Affinity emblems visibility on the construction radial
  90.  
  91. Area Effects for Hubs are now displayed in Research Topic panel
  92.  
  93. Improved Utopia tree visuals on lower screen resolutions to prevent overlapping
  94.  
  95. Production district will no longer reset output mode upon district expansion
  96.  
  97. Fixed Story Mode submenu chapter selection navigation issues on lower screen resolutions
  98.  
  99. Fixed camera position during negotiations when playing with a controller
  100.  
  101. Fixed camera rotation being possible on the faction formation screen when playing with a controller
  102.  
  103. Fixed a softblock when attempting to fulfill the Algorithm promise when playing with a controller
  104.  
  105. Fixed overlapping prompts in the Council when inspecting delegates
  106.  
  107. Fixed issues with city chat bubbles disappearing too quickly after The Council voting
  108.  
  109. Fixed Old Waystation deposit displaying Logistic units count on the tooltip
  110.  
  111. [Fractured Utopias] Fixed no DLC dialogue window when attempting to load a DLC save file with no DLC applied on Mac devices
  112.  
  113. [Fractured Utopias] Fixed overlapping and disappearing resources on the top HUD when switching between Cities after Hides and Reindeer resources were unlocked
  114.  
  115. [Fractured Utopias] Districts construction cost is now visible in the Utopia Tree
  116.  
  117. [Fractured Utopias] Improved readability of golden texts in in-game main menus
  118.  
  119. [Fractured Utopias] Fixed opening Faction panel/Utopia Tree not canceling current active Expand/Adjust placement input
  120.  
  121. [Fractured Utopias] Fixed lines connecting Utopia Tree nodes not appearing when player enters the panel for the first time
  122.  
  123. [Fractured Utopias] Fixed lines connecting Utopia Tree nodes placement on lower screen resolutions
  124.  
  125. [Fractured Utopias] Fixed persisting zoom story cursor on loading a save file during an active Icebloods’ Cutthroat Frostbreaking
  126.  
  127. [Fractured Utopias] Various minor visual improvements to Utopia Tree and Faction Panel
  128.  
  129.  
  130.  
  131. Art
  132.  
  133. Optimizations to the shadow count aimed to improve gpu and memory performance
  134.  
  135. Various improvements and fixes to hubs VFX
  136.  
  137. Increased the size of the Insulated Districts outlines in the Heatmap overlay
  138.  
  139. Fixed visual artifacts on some of the UI elements occurring for RTX 50-series users
  140.  
  141. Tweaks and improvements to road generation logic around hubs
  142.  
  143. Minor optimizations to texture compression
  144.  
  145. [Fractured Utopias] Minor ability icon tweaks and improvements.
  146.  
  147. [Fractured Utopias] Converted Faction Housing district panel now features faction related 2D art
  148.  
  149. [Fractured Utopias] Secondary faction hubs (Overseers, Menders) and regular hubs no longer feature 2D art
  150.  
  151. [Fractured Utopias] Improved Technocrats’ Hub visuals when placed on uneven terrain
  152.  
  153. [Fractured Utopias] Technocrats’ exclusive buildings should no longer lose cable connections after loading a save file
  154.  
  155. [Fractured Utopias] Fixed Imperial Academy being visible on the frostland map
  156.  
  157. [Fractured Utopias] Numerous minor visual improvements to faction districts
  158.  
  159. Audio
  160.  
  161. Improvements to faction districts SFX
  162.  
  163. Other
  164.  
  165. Fixed a few crashes related to threading and general under-the-hood memory handling operations
  166.  
  167. Fixed crashing Prologue save states created before 1.5.x patch
  168.  
  169. Memory optimizations
  170.  
  171. Localization fixes