• FEATURE: You can now configure @FieldNameConstants to CONSTANT_CASE the generated constants, using a lombok.config option. See the FieldNameConstants documentation. .
• FEATURE: You can now suppress generation of the builder method when using @Builder; usually because you're only interested in the toBuilder method. As a convenience we won't emit warnings about missing @Builder.Default annotations when you do this.
• FEATURE: You can now change the access modifier of generated builder classes. .
• FEATURE: When using @NonNull, or any other annotation that would result in a null-check, you can configure to generate an assert statement instead. .
• FEATURE: Lombok now knows exactly how to treat @com.fasterxml.jackson.annotation.JsonProperty and will copy it to the right places for example when making builders. .
• PLATFORM: A few lombok features (most notably delombok) failed on JDK12.
• BUGFIX: var/val on methods that return an intersection type would now work in Eclipse.
• BUGFIX: Fix for java6 regression if a field has javadoc.
• BUGFIX: Delombok now delomboks java10's own var as var and not as the actual underlying type.
• BUGFIX: If you use @Builder and manually write the build() method in your builder class, javac would error out instead of deferring to your implementation.
  
• BUGFIX: @SuperBuilder together with @Singular on non-lists would produce an erroneous emptyList call. .
• IMPROBABLE BREAKING CHANGE: For fields and parameters marked non-null, if the method body starts with an assert statement to ensure the value isn't null, no code to throw an exception will be generated.
• IMPROBABLE BREAKING CHANGE: When using ecj to compile java code with @Builder or @SuperBuilder in it, and a builder setter method was generated for a @NonNull-marked method, no explicit null check would be present. However, running javac on the exact same file would produce the null check. Now ecj also produces this null check. .