Helm v3 is a significant feature update that helps keep the K8s package manager current with the evolution of Kubernetes. In addition to being much simpler, it supports all of the latest security, authorization, and identity features of K8s orchestration.
Among these changes in Helm v3 is the elimination of the Tiller server-side component for secure application installation. Instead, Helm v3 uses the role-based access control (RBAC) facilities more recently implemented in Kubernetes.
One of Helm v3 architectural changes is the way release data is stored, this causes Helm v3 CLI to not recognize releases created with the Helm v2 CLI. To use Helm v3 CLI with v2 releases, migrate v2 release data to a format which v3 understands. This can easily be done using the Helm v3 2to3 plugin which will migrate the Helm v2 configuration, releases, clean up v2 configuration, release data and Tiller deployment.
Helm v3 is fully compatible with Helm v2 charts and chart repositories. JFrog Artifactory supports both Helm v2 and v3 clients and only Helm v2 Helm repositories. Existing Helm repositories stored in Artifactory will not require any changes to be accessible for Helm v3 CLI.