### New features

* [#379](https://github.com/rubocop/rubocop-ast/pull/379): Support `RuboCop::AST::ComplexNode`. ([@koic][])

### Bug fixes

* [#380](https://github.com/rubocop/rubocop-ast/pull/380): Fix `RuboCop::AST::NumericNode#sign?` to return boolean. ([@viralpraxis][])
