- Removal of Tiller: Helm v3 eliminates the need for Tiller, simplifying the architecture and enhancing security.
- Release Storage: The way Helm stores release information on the cluster has changed.
- 3-Way Strategic Merge Patch: Helm v3 now uses a 3-way strategic merge patch for upgrades and rollbacks. This approach compares the old manifest, live state, and new manifest, allowing for more intelligent upgrades and better handling of manual changes made to releases.
For additional changes between Helm v3 to v2, see
Helm v3 changes overview and the changes
since Helm v2 FAQ .