# Changelog

## Development

## v1.3.0

* Add `Node#sibling_index`.

## v1.2.1

* Re-release 1.2.0 due to an error in `rubygems.org`.

## v1.2.0

* Add `Astrolabe::Sexp` module which provides a shorthand method to create a node like [`AST::Sexp`](http://rubydoc.info/gems/ast/AST/Sexp).

## v1.1.0

* Add `Node#ancestors`, `Node#child_nodes` and `Node#descendants` which return an array instead of enumerator.

## v1.0.0

* Initial API stable release in the Semantic Versioning.