CHANGELOG.md in govuk_app_config-1.18.1 vs CHANGELOG.md in govuk_app_config-1.19.0

@@ -1,4 +1,9 @@
+# 1.19.0
+
+* Use `GOVUK_CSP_REPORT_ONLY` and `GOVUK_CSP_REPORT_URI` to configure
+  content security policy.
+
 # 1.18.1
 
 * Fix incorrect report_uri= method usage in content security policy
 
 # 1.18.0