diff --git a/History.md b/History.md
index c1e1a6e9..187a5965 100644
--- a/History.md
+++ b/History.md
@@ -1,5 +1,6 @@
 2.4.0
 =======
+2022-01-13
 
 - issue #255 support order-x
 - xr now checks en16931 profile not extended