Install Version
There is no way to Select the OS Version we want when deploying Palo from the AWS Market Place. Deploying the default version is not acceptable.
AMI for all supported versions of Palo Alto VM series are released as public Images. Navigate to EC2 > AMI > List public Images Search for "pa-vm" You will see AMIs for older versions. Select 10.1.4 AMI and use the "Launch instance from AMI" tab on top right corner to launch instance.