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diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index 5123713c6b..be1f53faf5 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,3 +1,22 @@
+*   Fix 'Stack level too deep' when rendering `head :ok` in an action method
+    called 'status' in a controller.
+
+    Fixes #13905.
+
+    *Christiaan Van den Poel*
+
+*   Add MKCALENDAR HTTP method (RFC 4791).
+
+    *Sergey Karpesh*
+
+*   Instrument fragment cache metrics.
+
+    Adds `:controller`: and `:action` keys to the instrumentation payload
+    for the `*_fragment.action_controller` notifications. This allows tracking
+    e.g. the fragment cache hit rates for each controller action.
+
+    *Daniel Schierbeck*
+
 *   Always use the provided port if the protocol is relative.
 
     Fixes #15043.