2 files changed, 5 insertions, 0 deletions

diff --git a/Misc/ACKS b/Misc/ACKS
index a9773d8..f3f5b8b 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -511,6 +511,7 @@ Frank Stajano
 Richard Stoakley
 Casper Stoel
 Peter Stoehr
+Michael Stone
 Ken Stox
 Daniel Stutzbach
 Paul Swartz
diff --git a/Misc/NEWS b/Misc/NEWS
index e1456fe..5f3f847 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -21,6 +21,10 @@ Core and builtins
 Extension modules
 -----------------
 
+- Fixed broken threadstate swap in readline that could cause fatal
+  errors when a readline hook was being invoked while a background
+  thread was active.  (SF bugs #660476 and #513033.)
+
 - fcntl now exposes the strops.h I_* constants.
 
 - datetime changes: