diff --git a/changelogs/fragments/porting-guide-2.yml b/changelogs/fragments/porting-guide-2.yml
new file mode 100644
index 0000000000..71fea312ee
--- /dev/null
+++ b/changelogs/fragments/porting-guide-2.yml
@@ -0,0 +1,2 @@
+deprecated_features:
+  - The ldap_attr module has been deprecated and will be removed in a later release; use ldap_attrs instead.