Hooligan Labs Airhips Core
Today I decided that it's more than due time to play Blimps on KSP 1.12.3. ;)
So I updated Hooligan Labs Airships to it! 8-)
Parts that were problematic (sinking on KSP 1.3.1, being skyrocket on KSP 1.4 to 1.11 or just blowing up in KSP 1.12) were fixed and they are now working flawlessly… From KSP 1.3.1 to 1.12.3 , no savegame was left behind! :P