• The constructor parameter names in the class generated by @Memoized no longer add a $. This may require changes to code that was depending on the old names, for example using Error Prone's /* param= */ comments. (4f8dbea)
• An AutoValue or AutoBuilder property is now allowed to be null if its type is a type variable with a @Nullable bound, like <T extends @Nullable Object>. (1b58cff)
• Better error message when AutoValue, AutoBuilder, etc give up because of missing types. We now say what the first missing type was. (2e734f6)
• AutoBuilder copy-constructors no longer require an exact match between a property and the corresponding constructor parameter. (1440a25)
• A property of type List<T> can be built by a property builder whose build() method returns List<? extends T>. (8ba4531)
• Made it easier to support @CopyAnnotations in AutoValue extensions, via new methods classAnnotationsToCopy and methodAnnotationsToCopy. (a3f218d)
• Generated builders now include a @Nullable type annotation on appropriate builder fields if one is available. (91d5f32)
• Updated @AutoAnnotation documentation to say that it isn't needed in Kotlin. (600b4b6)
• Maven dependencies have been updated, fixing #1532.