Does Trident upgrade by using helm keep customized settings?
Applies to
Astra Trident(helm-based)
Answer
Yes. Upgrade by 
helm upgrade command keep customized settings without specifying YAML file(trident/values.yaml).Note:
However, 
values.yaml needs to be specified in order to avoid the issure reported in Helm does not upgrade Autosupport Image of trident installed with custom values.yaml if the custom values.yaml is specified for the installation.