From 7e189aed6450c0aebcdd6ff6aefe29e2f45b173a Mon Sep 17 00:00:00 2001
From: Donghee Na <donghee.na@python.org>
Date: Wed, 19 Jun 2024 00:37:34 +0900
Subject: [PATCH] gh-120496: Add a note about iterator thread-safe (gh-120685)

---
 Doc/glossary.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Doc/glossary.rst b/Doc/glossary.rst
index 8685369117f..281dde30dc7 100644
--- a/Doc/glossary.rst
+++ b/Doc/glossary.rst
@@ -694,6 +694,9 @@ Glossary
 
          CPython does not consistently apply the requirement that an iterator
          define :meth:`~iterator.__iter__`.
+         And also please note that the free-threading CPython does not guarantee
+         the thread-safety of iterator operations.
+
 
    key function
       A key function or collation function is a callable that returns a value