Serializing generic types#

2020.1.0a8+#

The serializer can now serialize fields of generic types directly; it is no longer necessary to derive a concrete subclass from a generic type in order to serialize it.

Pre-2020.1#

Generic types must be a derived concrete subclass.
This means that if any type that contains a generic in its definition needs to be inherited from plainly to become serializable.

Example#

[System.Serializable]
public class Base<T>
{
    public T Value;
}

[System.Serializable]
public class A : Base<float> { }

[SerializeField] private A a; // Serializable
[SerializeField] private Base<Test> b; // Not Serializable