Issue 11802:  filecmp cache was growing without bound.
diff --git a/Misc/NEWS b/Misc/NEWS
index bddddfa..9e0b8f4 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -16,6 +16,9 @@
 Library
 -------
 
+- Issue #11802:  The cache in filecmp now has a maximum size of 100 so that
+  it won't grow without bound.
+
 - Issue #12404: Remove C89 incompatible code from mmap module. Patch by Akira
   Kitada.