Chemical Core 1.5.0

• Moved resource descriptions from Chemical Propulsion to Chemical Core
• Moved part upgrades to Chemical Tech Tree
• Added descriptions for LqdCO, LqdCO2, LqdNitrogen and Water

Chemical Core 1.4.5

• Added PSPC (Polysulfide propellant composite)

Chemical Core 1.4.4

• Added Russian localization (contributed by @bimo1d)

Chemical Core 1.4.3

• Added Skyhawk Science System compatibility (contributed by @Arofire)

1.4.2.1

• Improved SystemHeat-CryoTanks patch

Chemical Core 1.4.2

• Added SystemHeat support for CryoTanks BOILOFFCONFIGs

Chemical Core 1.4.1

• Added Simplified Chinese localization (contributed by @Aebestach)
• Prevented part upgrade icon dummy parts from appearing in VAB part list in sandbox mode
• Changed LqdAmmonia, Aniline and Nitric acid colours
• Changed PBAN part upgrade tech required from Basic Rocketry to Start
• Fixed N2F4 part upgrade tech tree placement when not using Community Tech Tree

Chemical Core 1.4.0

• Added Aniline
• Shifted some part upgrades down the tech tree:
  • HTP: General Rocketry → Basic Rocketry
  • TEATEB: Advanced Rocketry → General Rocketry
  • NTO: Propulsion Systems → Advanced Rocketry

Chemical Core 1.3.0

• Added part upgrade activation system which keeps part upgrades and associated switch subtypes hidden if unused

Chemical Core 1.2.0

• Added IWFNA (Nitric acid)
• Balanced HTPB and PBAN cost
• Changed resource colour definitions to use hex codes for modules that can't parse colour names