<commit_before># Changelog

### 4.6.1

 * Address [issue 60](https://github.com/mceachen/closure_tree/issues/60) (use `.empty?` rather 
   than `.nil?`—thanks for the suggestion, [<NAME>](https://github.com/doxavore) and 
   [<NAME>](https://github.com/samnang)!

### 4.6.0

 * Deterministically ordered trees are guaranteed to have a sort_order now.

   **This may be a breaking change if you're expecting sort_order to be nullable.**

   Many thanks to [David Schmidt](https://github.com/inetdavid) for raising and
   working on the issue!

 * Added ```append_child``` and ```prepend_child```
 
 * All raw SQL is now ```strip_heredoc```'ed

### 4.5.0

* Merged a bunch of great changes from [<NAME>](https://github.com/seuros), 
  including a change to use [appraisal](https://github.com/thoughtbot/appraisal)
* Added Travis builds for Rails 4.1.1 and Ruby 2.1.2
* Dropped support for Rails 3.1, as it is no longer receiving security patches.
  See http://rubyonrails.org/security/ for more information.
<commit_msg>Missed Leonel<commit_after># Changelog

### 4.6.1

 * Address [issue 60](https://github.com/mceachen/closure_tree/issues/60) (use `.empty?` rather 
   than `.nil?`—thanks for the suggestion, [<NAME>](https://github.com/leonelgalan),
   [<NAME>](https://github.com/doxavore) and [<NAME>](https://github.com/samnang)!

### 4.6.0

 * Deterministically ordered trees are guaranteed to have a sort_order now.

   **This may be a breaking change if you're expecting sort_order to be nullable.**

   Many thanks to [<NAME>](https://github.com/inetdavid) for raising and
   working on the issue!

 * Added ```append_child``` and ```prepend_child```
 
 * All raw SQL is now ```strip_heredoc```'ed

### 4.5.0

* Merged a bunch of great changes from [<NAME>](https://github.com/seuros), 
  including a change to use [appraisal](https://github.com/thoughtbot/appraisal)
* Added Travis builds for Rails 4.1.1 and Ruby 2.1.2
* Dropped support for Rails 3.1, as it is no longer receiving security patches.
  See http://rubyonrails.org/security/ for more information.

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