diff --git a/reference/filesystem/functions/flock.xml b/reference/filesystem/functions/flock.xml
index c157e6890ed2..2069e2e5be4b 100644
--- a/reference/filesystem/functions/flock.xml
+++ b/reference/filesystem/functions/flock.xml
@@ -91,6 +91,29 @@
+
+ &reftitle.changelog;
+
+
+
+
+ &Version;
+ &Description;
+
+
+
+
+ 8.5.0
+
+ flock is now supported on zlib streams.
+ Previously, this always failed to perform any locking action.
+
+
+
+
+
+
+
&reftitle.examples;