CHANGELOG.md in ransack-1.6.5 vs CHANGELOG.md in ransack-1.6.6

@@ -1,6 +1,44 @@
 # Change Log
 
+## Version 1.6.6 - 2015-04-05
+### Changed
+
+*   Upgrade Polyamorous dependency to version 1.2.0, which uses Module#prepend instead of monkey-patching for hooking into Active Record (with Ruby 2.x).
+
+    *Jon Atack*
+
+### Fixed
+
+*   An improved fix for the "undefined method `model_name` for Ransack::Search"
+    issue [#518](https://github.com/activerecord-hackery/ransack/issues/518)
+    affecting Rails 4.2.1 and 5.0.0. This fix allows us to remove the
+    ActionView patch in Ransack version 1.6.4.
+
+    *Gleb Mazovetskiy*
+
+*   Fix an erroneous reference in `ActiveRecord::Associations::JoinDependency`
+    to a version-dependent Active Record reference, and replace it with a
+    better, more reliable one defined in Polyamorous. As this class lives
+    inside an `ActiveRecord` module, the reference needs to be absolute in
+    order to properly point to the AR class.
+
+    *Nahuel Cuesta Luengo*
+
+*   Fix RubyGems YARD rendering of the README docs.
+
+    *Jon Atack*
+
+### Added
+
+*   Add the Ruby version to the the header message that shows the database,
+    Active Record and Arel versions when running tests.
+
+*   Add Code Climate analysis.
+
+    *Jon Atack*
+
+
 ## Version 1.6.5 - 2015-03-28 - Rails 5.0.0 update
 ### Added
 
 *   [WIP/experimental] Add compatibility with Rails 5/master and Arel 7.