diff --git a/main.go b/main.go
index 4483c2d..2277ff8 100644
--- a/main.go
+++ b/main.go
@@ -1,3 +1,4 @@
+// Version: 2021.10
 // Build: go build -ldflags "-s -w"
 // Run: goudpserver -ip=0.0.0.0 -port=10003
 // Test: ncat -u localhost 10003