The documentation for deploying RHDH is missing information for both upstream (backstage/chart) and backstage-showcase docs regarding the required Helm CLI version. This has led to parsing errors during deployment, particularly with Helm 3.6.

More details about the issue in RHDH GA Feedback Themes https://docs.google.com/spreadsheets/d/1FHcqVZVh4MfqIPJ3SgSg0HmpZuN0_2yBtJUC8OX_XoU/edit#gid=0&range=A49

As per the discussion with tkral@redhat.com  suggested fix: To include a section in both upstream (backstage/chart) and backstage-showcase docs  specifying the minimum required Helm CLI version for deployment. The recommended version is  last stable version (3.13) and minimum version should be 3.10.