Serial.Version

```
@Target({TYPE,PACKAGE,ANNOTATION_TYPE})
public static @interface Serial.Version
```
Could be applied to types, enclosing types, enclosing packages and as meta-annotation. Specify serial version over enclosing types. It has an effect of also making them implement serializable if they don't already. May be used in combination with Serial.Structural, but it is not strictly needed if structural is present.

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  long value

- Element Detail
  - value
```
long value
```