Patent 9338064 was granted and assigned to Twilio on May, 2016 by the United States Patent and Trademark Office.
A system and method that includes managing a computer cluster with a plurality of machines of a first version in an active configuration; adding at least one machine of a second version to the computer cluster; monitoring the operational status of the machine of a second version; and transitioning the computer cluster to use the machine of a second version in an active configuration.