1 files changed, 3 insertions, 0 deletions
diff --git a/Misc/NEWS b/Misc/NEWS
index 34df05d..5056009 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -132,6 +132,9 @@ IDLE
 Tests
 -----
 
+- Issue #17835: Fix test_io when the default OS pipe buffer size is larger
+  than one million bytes.
+
 - Issue #17065: Use process-unique key for winreg tests to avoid failures if
   test is run multiple times in parallel (eg: on a buildbot host).