diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..5afb9d5
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,13 @@
+# Change Log
+All notable changes to this project will be documented in this file.
+This project adheres to [Semantic Versioning](http://semver.org/).
+
+## [2.0.0] - 2015-12-02
+### Breaking changes
+- Remove Object#namespace [#20]
+
+### Other changes
+- Add ability to pass a transformation block to element_counts [#21]
+- Array#include_any? and friends now accept a single argument Array. [#18]
+- Upgraded to RSpec 3 [#16]
+- Added the Change Log!
diff --git a/lib/more_core_extensions/version.rb b/lib/more_core_extensions/version.rb
index ed60607..b023c8f 100644
--- a/lib/more_core_extensions/version.rb
+++ b/lib/more_core_extensions/version.rb
@@ -1,3 +1,3 @@
 module MoreCoreExtensions
-  VERSION = "1.2.0"
+  VERSION = "2.0.0"
 end