> In C# 9.0, you can omit the type in a new expression when the created object's type is already known. private List<WeatherObservation> _observations = new(

> In C# 9.0, you can omit the type in a new expression when the created object's type is already known. private List<WeatherObservation> _observations = new(); This is something I've long wondered why I couldn't do and I'm glad I'll be able to in C# 9.