If you are unsure whether you are on v1.12, Steam usually auto-updates the game. For Non-Steam (DLsite or Itch.io) versions, you should check the developer's official page or the "Readme" file in the game directory to confirm the build number [10†L21-L22].
The Complete Guide to Heroine Conquest v1.12 (BadColor Patched)
Version numbers track incremental updates. v112 likely introduced new content or balance changes but inadvertently broke color rendering on specific graphics cards or operating systems (e.g., Windows 10/11’s legacy DirectX handling).