Either you're already a holder of the Starmobile Octa for a few months or just bought it recently in their previous sale, rejoice as you can get the chocolate-y update.
Yes, Starmobile Octa can now be updated to Android Kitkat. Good thing that the device has an OTA support so no need to go to their service to get this OS update.
To update, go to settings>about phone>wireless update. Be sure to have at least 1 GB of internal storage or more and have a stable WiFi connection for you to get the update. Of course, it's free.