1 files changed, 3 insertions, 0 deletions
diff --git a/Misc/NEWS b/Misc/NEWS
index ee30945..06cf8d9 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -22,6 +22,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #18383: Avoid creating duplicate filters when using filterwarnings
+  and simplefilter.  Based on patch by Alex Shkop.
+
 - Issue #23026: winreg.QueryValueEx() now return an integer for REG_QWORD type.
 
 - Issue #26741: subprocess.Popen destructor now emits a ResourceWarning warning