For instructions on upgrading your AWS environment, please see the AWS Installation Guide for your deployment.

BYOL: 
https://docs.imperva.com/bundle?labelkey=version-14.1&labelkey=cloud-license-byol&labelkey=&name_filter.field=title&name_filter.value=&rpp=10&sort.field=title&sort.value=asc

On-Demand: 
https://docs.imperva.com/bundle?labelkey=version-14.1&labelkey=cloud-license-onDemand&name_filter.field=title&name_filter.value=&rpp=10&sort.field=title&sort.value=asc