From 2d19132dc2a021152783f6fcaf1c0a16d0523dc5 Mon Sep 17 00:00:00 2001
From: Ben Dichter <ben.dichter@gmail.com>
Date: Sun, 30 Nov 2025 12:10:29 -0500
Subject: [PATCH] Update default XML version to 8.4.0

---
 hed/schema/hed_schema_io.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hed/schema/hed_schema_io.py b/hed/schema/hed_schema_io.py
index d6aedf1e..7d262c3e 100644
--- a/hed/schema/hed_schema_io.py
+++ b/hed/schema/hed_schema_io.py
@@ -340,7 +340,7 @@ def _load_schema_version_sub(xml_version, schema_namespace="", xml_folder=None,
         - The prefix is invalid
     """
     if not xml_version:
-        xml_version = "8.3.0"
+        xml_version = "8.4.0"
 
     # Parse library name from version string before validation
     library_name = ""