+Version 4.0.0, 2021-06-29
+-------------------------
+- Fourth version (D release)
+- Enable the AIO duplex mode (2 servers with High Availabity) with additional worker node.
+- Reconstruct the repo to align the upstream projects include StarlingX and Yocto
+
+Version 3.0.0, 2020-11-23
+-------------------------
+- Third version (Cherry)
+- Based on version 2.0.0 (Bronze)
+- Add the AIO (all-in-one) 2 servers mode (High Availability)
+