diff --git a/Misc/ACKS b/Misc/ACKS
index bff2f3c..ec8d94f 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -738,6 +738,7 @@
 Christopher Tur Lesniewski-Laas
 Alain Leufroy
 Mark Levinson
+Mark Levitt
 William Lewis
 Akira Li
 Xuanji Li
diff --git a/Misc/NEWS b/Misc/NEWS
index 1fcb9c9..ebb3f69 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -123,6 +123,9 @@
 Library
 -------
 
+- Issue #18149: Add filecmp.clear_cache() to manually clear the filecmp cache.
+  Patch by Mark Levitt
+
 - Issue #18193: Add importlib.reload().
 
 - Issue #18157: Stop using imp.load_module() in pydoc.