HISTORY.md in mongo_doc-0.4.2 vs HISTORY.md in mongo_doc-0.5.5

@@ -1,4 +1,11 @@
+## 0.5.0 to 0.5.5
+
+* update to ruby driver 0.20.1 and the new bson gems
+* require MongoDB 1.4
+* can be used with ActiveSupport 2 or 3
+* Rails3 support with [MongoDoc-Rails](http://github.com/leshill/mongo_doc-rails) thanks to elliotcm
+
 ## 0.4.2
 
-* 'Document#update_attributes' uses $ positional operator when used from within an embed_many association
+* `Document#update_attributes` uses $ positional operator when used from within an embed_many association
 * Require MongoDB 1.3.4 or greater