1 files changed, 5 insertions, 0 deletions
diff --git a/Misc/NEWS b/Misc/NEWS
index 6a36c3a..e4d04b1 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -233,6 +233,11 @@ Core and Builtins
 Library
 -------
 
+- Issue #17488: Change the subprocess.Popen bufsize parameter default value
+  from unbuffered (0) to buffering (-1) to match the behavior existing code
+  expects and match the behavior of the subprocess module in Python 2 to avoid
+  introducing hard to track down bugs.
+
 - Issue #17521: Corrected non-enabling of logger following two calls to
   fileConfig().