1 files changed, 3 insertions, 0 deletions
diff --git a/Misc/NEWS b/Misc/NEWS
index 9f4ecc9..16651ed 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -18,6 +18,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #12352: Fix a deadlock in multiprocessing.Heap when a block is freed by
+  the garbage collector while the Heap lock is held.
+
 - Issue #9516: On Mac OS X, change Distutils to no longer globally attempt to
   check or set the MACOSX_DEPLOYMENT_TARGET environment variable for the
   interpreter process.  This could cause failures in non-Distutils subprocesses