The javax.lang.model API was introduced in JDK 6 via JSR 269. In JDK 7, 8, and 9 new sets of concrete visitors were added in the javax.lang.model.util package. In JDKs 7, 8, and 9, there were new language changes that required new modeling constructs. There are no such changes in JDK 10. Therefore, a new set of visitors will not be added for JDK 10. However, some minor updates to the JDK 9 visitors should be made to indicate they cover both JDK 9 and JDK 10 constructs.