diff --git a/Misc/ACKS b/Misc/ACKS
index 41d314e..6f689ad 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -419,6 +419,7 @@
 Lou Kates
 Hiroaki Kawai
 Sebastien Keim
+Ryan Kelly
 Robert Kern
 Randall Kern
 Magnus Kessler
diff --git a/Misc/NEWS b/Misc/NEWS
index ef35ddc..b89f89d 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -30,6 +30,9 @@
 Extensions
 ----------
 
+- Issue #6915: Under Windows, os.listdir() didn't release the Global
+  Interpreter Lock around all system calls.  Original patch by Ryan Kelly.
+
 - Issue #8524: Add a detach() method to socket objects, so as to put the
   socket into the closed state without closing the underlying file
   descriptor.