diff --git a/ormpp/version.hpp b/ormpp/version.hpp
new file mode 100644
index 0000000..b376016
--- /dev/null
+++ b/ormpp/version.hpp
@@ -0,0 +1,9 @@
+#pragma once
+#pragma once
+
+// Note: Update the version when release a new version.
+
+// ORMPP_VERSION % 100 is the sub-minor version
+// ORMPP_VERSION / 100 % 1000 is the minor version
+// ORMPP_VERSION / 100000 is the major version
+#define ORMPP_VERSION 12  // 0.1.2
\ No newline at end of file