CHANGELOG.md in govuk_app_config-5.0.0 vs CHANGELOG.md in govuk_app_config-5.1.0

@@ -1,4 +1,8 @@
+# 5.1.0
+
+* Add support to force-load the GovukPrometheusExporter by setting `GOVUK_PROMETHEUS_EXPORTER` to `force`. ([#282](https://github.com/alphagov/govuk_app_config/pull/282))
+
 # 5.0.0
 
 * Forbid base elements in the Content Security Policy
 * BREAKING: Content Security Policy forbids unsafe-inline script-src and data: image-src. It provides a nonce generator. Apps that can't support this will need to amend their CSP configuration in an initializer, see [example](https://github.com/alphagov/signon/commit/ddcf31f5c30b8fd334e4aea74986b24bf2b0e9be) in signon. Any apps that still use jQuery 1.x will need unsafe-inline for Firefox compatibility.