Issue #12102: Document that buffered files must be flushed before being used
with mmap. Patch by Steffen Daode Nurpmeso.
diff --git a/Misc/NEWS b/Misc/NEWS
index 9f18a61..6e7bc53 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -37,6 +37,9 @@
 Library
 -------
 
+- Issue #12102: Document that buffered files must be flushed before being used
+  with mmap. Patch by Steffen Daode Nurpmeso.
+
 - Issue #12560: Build libpython.so on OpenBSD. Patch by Stefan Sperling.
 
 - Issue #1813: Fix codec lookup and setting/getting locales under Turkish