==================
- Added compatibility with OpenMDAO 3.4, which is now the minimum required
version of OpenMDAO. (231)
- Simplified call to VariableViewer. (221)
- Bug fix: model for compressibility drag now takes into account sweep angle
and thickness ratio. (237)
- Bug fix: at installation, minimum version of Scipy is forced to 1.2. (219)
- Bug fix: SpeedChangeSegment class now accepts Mach number as possible target. (234)
- Bug fix: variable "data:weight:aircraft_empty:mass has now "kg" as unit. (236)