CHANGELOG.md in govuk_app_config-0.3.0 vs CHANGELOG.md in govuk_app_config-1.0.0

@@ -1,5 +1,18 @@
-# Changelog
+# 1.0.0
+
+* Add Unicorn (our web server) as a dependency
+* Use version [2.7.0 of the Sentry client][sentry-270].
+* Set up logging configuration for Rails applications.
+* Don't send `ActionController::BadRequest`
 to Sentry
+
+[sentry-270]: https://github.com/getsentry/raven-ruby/commit/ef623824cb0a8a2f60be5fb7e12f80454da54fd7
+
+### How to upgrade
+
+* Remove `gem 'unicorn'` from your Gemfile
+* Remove `gem 'logstasher'` from your Gemfile
+* Remove all `config.logstasher.*` configs from `config/production.rb`
 
 ## 0.3.0
 
 * Add `time` and `gauge` to `GovukStatsd`
 * Add `GovukError.configure` as an alias to `Raven.configure`