CHANGELOG.md in govuk_ab_testing-0.2.0 vs CHANGELOG.md in govuk_ab_testing-1.0.0

@@ -1,7 +1,15 @@
+## 1.0.0
+
+* Pass in request headers instead of the actual request to RequestedVariant.
+  This is a breaking change.
+* Slit testing framework helpers from acceptance test frameworks. This means we
+  can now use a combination of RSpec/Minitest and Capybara/ActiveSupport test
+  cases.
+
 ## 0.2.0
 
 * Include RSpec + Capybara helper class
 * Test custom dimensions on all helper classes