README.md in closure_tree-3.7.1 vs README.md in closure_tree-3.7.2

- old
+ new

@@ -394,10 +394,16 @@
 Parallelism is not tested with Rails 3.0.x nor 3.1.x due to this
 [known issue](https://github.com/rails/rails/issues/7538).
 
 ## Change log
 
+### 3.7.2
+
+* Support for UUID primary keys. Addresses
+  [issue 40](https://github.com/mceachen/closure_tree/issues/40). Thanks for the pull request,
+  [Julien](https://github.com/calexicoz)!
+
 ### 3.7.1
 
 * Moved requires into ActiveSupport.on_load
 * Added ```require 'with_advisory_lock'```
 
@@ -548,6 +554,5 @@
 
 * https://github.com/collectiveidea/awesome_nested_set
 * https://github.com/patshaughnessy/class_factory
 * JetBrains, which provides an [open-source license](http://www.jetbrains.com/ruby/buy/buy.jsp#openSource) to
   [RubyMine](http://www.jetbrains.com/ruby/features/) for the development of this project.
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