Close the call queue in concurrent.futures.ProcessPoolExecutor when
shutdown() is called, without waiting for the garbage collector to kick in.
diff --git a/Misc/NEWS b/Misc/NEWS
index 02b59dc..bf33745 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -30,6 +30,9 @@
Library
-------
+- Close the call queue in concurrent.futures.ProcessPoolExecutor when
+ shutdown() is called, without waiting for the garbage collector to kick in.
+
- Issue #11603: Fix a crash when __str__ is rebound as __repr__. Patch by
Andreas Stührk.