diff --git a/doc/changelog/07-ssreflect/18449-changelog-ssr.rst b/doc/changelog/07-ssreflect/18449-changelog-ssr.rst
new file mode 100644
index 000000000000..713049772efc
--- /dev/null
+++ b/doc/changelog/07-ssreflect/18449-changelog-ssr.rst
@@ -0,0 +1,8 @@
+- **Changed:**
+  The :tacn:`have` tactic generates a proof term containing an opaque
+  constant, as it did up to PR `#15121 <https://github.com/coq/coq/pull/15121>`_
+  included in Coq 8.16.0. See the variant `have @H` to generate a (transparent)
+  let-in instead (:ref:`generating_let_ssr`).
+  (`#18449 <https://github.com/coq/coq/pull/18449>`_,
+  fixes `#18017 <https://github.com/coq/coq/issues/18017>`_,
+  by Enrico Tassi).