diff --git a/cmd/xgo/runtime_gen/core/version.go b/cmd/xgo/runtime_gen/core/version.go
index 7bedd858..e7bbdb0e 100755
--- a/cmd/xgo/runtime_gen/core/version.go
+++ b/cmd/xgo/runtime_gen/core/version.go
@@ -6,9 +6,9 @@ import (
 	"os"
 )
 
-const VERSION = "1.0.48"
-const REVISION = "ee7e3078596587e9734a1e6f208d258b8c6fa090+1"
-const NUMBER = 305
+const VERSION = "1.0.49"
+const REVISION = "37977b002ee8cc375e071b7ac23e8bb67a2de64d+1"
+const NUMBER = 308
 
 // these fields will be filled by compiler, see CORE_VERSION in cmd/xgo/version.go
 const XGO_VERSION = ""
diff --git a/cmd/xgo/version.go b/cmd/xgo/version.go
index dbcd83f2..37cc8e3c 100644
--- a/cmd/xgo/version.go
+++ b/cmd/xgo/version.go
@@ -2,15 +2,18 @@ package main
 
 import "fmt"
 
-// auto updated
-const VERSION = "1.0.48"
-const REVISION = "40aa40fc76231d2c9ee681be5456b26d4255f123+1"
-const NUMBER = 307
+// REVISION and NUMBER are auto updated when run 'git commit'
+// VERSION is manully updated when needed a new tag
+// see also runtime/core/version.go
+const VERSION = "1.0.49"
+const REVISION = "37977b002ee8cc375e071b7ac23e8bb67a2de64d+1"
+const NUMBER = 308
 
+// the matching runtime/core's version
 // manually updated
-const CORE_VERSION = "1.0.48"
-const CORE_REVISION = "ee7e3078596587e9734a1e6f208d258b8c6fa090+1"
-const CORE_NUMBER = 305
+const CORE_VERSION = "1.0.49"
+const CORE_REVISION = "37977b002ee8cc375e071b7ac23e8bb67a2de64d+1"
+const CORE_NUMBER = 308
 
 func getRevision() string {
 	return formatRevision(VERSION, REVISION, NUMBER)
diff --git a/runtime/core/version.go b/runtime/core/version.go
index 7bedd858..e7bbdb0e 100644
--- a/runtime/core/version.go
+++ b/runtime/core/version.go
@@ -6,9 +6,9 @@ import (
 	"os"
 )
 
-const VERSION = "1.0.48"
-const REVISION = "ee7e3078596587e9734a1e6f208d258b8c6fa090+1"
-const NUMBER = 305
+const VERSION = "1.0.49"
+const REVISION = "37977b002ee8cc375e071b7ac23e8bb67a2de64d+1"
+const NUMBER = 308
 
 // these fields will be filled by compiler, see CORE_VERSION in cmd/xgo/version.go
 const XGO_VERSION = ""