CHANGELOG.md in bubble-wrap-0.3.1 vs CHANGELOG.md in bubble-wrap-0.4.0

@@ -1,4 +1,9 @@
+## 0.4.0
+
+* Refactored the code and test suite to be more modular and to handle
+  dependencies. One can now require only a subset of BW such as `require 'bubble-wrap/core'` or 'bubble-wrap/http'
+
 ## 0.3.1
 
 * Added App.run_after(delay){ }
 * HTTP responses return true to ok? when the status code is 20x.