diff --git a/weed/util/version/constants.go b/weed/util/version/constants.go
index 96a3ce757..33b226202 100644
--- a/weed/util/version/constants.go
+++ b/weed/util/version/constants.go
@@ -7,8 +7,8 @@ import (
 )
 
 var (
-	MAJOR_VERSION  = int32(3)
-	MINOR_VERSION  = int32(99)
+	MAJOR_VERSION  = int32(4)
+	MINOR_VERSION  = int32(00)
 	VERSION_NUMBER = fmt.Sprintf("%d.%02d", MAJOR_VERSION, MINOR_VERSION)
 	VERSION        = util.SizeLimit + " " + VERSION_NUMBER
 	COMMIT         = ""