Table of Contents Table of Contents Title and Copyright Information Preface Audience Documentation Accessibility Related Documents Conventions 1 Java Language Changes Java Language Updates for Java SE 15 Java Language Changes for Java SE 14 Java Language Changes for Java SE 13 Java Language Changes for Java SE 12 Java Language Changes for Java SE 11 Java Language Changes for Java SE 10 Java Language Changes for Java SE 9 More Concise try-with-resources Statements @SafeVarargs Annotation Allowed on Private Instance Methods Diamond Syntax and Anonymous Inner Classes Underscore Character Not Legal Name Support for Private Interface Methods 2 Preview Features 3 Sealed Classes 4 Pattern Matching for instanceof 5 Record Classes 6 Switch Expressions 7 Text Blocks 8 Local Variable Type Inference