I am using the "Wowza Streaming Engine 4: Pro Edition" subscription from Amazon Marketplace. This provides AMIs with an embedded (non-BYOL) license.

There is a new release 4.3, but unfortunately the AMIs for this release are not yet available. Can I upgrade my host manually using the instructions here:

More specifically, I am asking if the embedded license provided through the AWS Marketplace subscription allows for manual upgrades of the Wowza software.