I have seen OpManager build of 12.8.402 in new installation of OpManager and also saw a post in https://www.manageengine.com/network-monitoring/help/read-me-complete.html about the latest build as 12.8.402 but while i use the service pack to upgrade to the latest build it will take me to a build of  12.8.271 only.

If anyone knows how i can move to build 12.8.402