CHANGELOG.md in govuk_navigation_helpers-4.0.0 vs CHANGELOG.md in govuk_navigation_helpers-5.0.0

@@ -1,4 +1,12 @@
+## 5.0.0
+
+* **BREAKING CHANGE**: Update the gds-api-adapters gem. This includes a change
+  which replaces the `GOVUK-Fact-Check-Id` header with the
+  `GOVUK-Auth-Bypass-Id` header when passing on requests from the client to
+  APIs. See the gds-api-adapters changelog for more information on upgrading.
+* Limit related links to the first two taxons.
+
 ## 4.0.0
 
 * **BREAKING CHANGE**: remove `Guidance::DOCUMENT_TYPES`. Clients should use
   filter guidance content using the `navigation_document_supertype` field which
   has been added to search and the content store.