# Helm v4.0.0 — Release & Upgrade Intelligence
- **Product:** Helm (https://helm.sh)
- **Version:** v4.0.0
- **Released:** Nov 12, 2025
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/helm/updates/v4.0.0/

## Executive Summary (TL;DR)
Helm v4.0.0. Source highlight: The Helm Team is proud to announce the first stable release of Helm 4.

## Breaking Changes & Deprecations
- Helm v4 is a major version with backward incompatible changes including to the flags and output of the Helm CLI and to the SDK.

## New Features
- Redesigned plugin system that supports Web Assembly based plugins
- Post-renderers are now plugins
- Server side apply is now supported
- Improved resource watching, to support waiting, based on kstatus
- Local Content-based caching (e.g. for charts)
- Logging via slog enabling SDK logging to integrate with modern loggers

## Bug Fixes
- for discussing PRs, code, and bugs
- Test, debug, and contribute charts: ArtifactHub/packages
- 3.19.3 and 4.0.1 are the next patch releases and will be on December 10, 2025