# Helm v4.2.1 — Release & Upgrade Intelligence
- **Product:** Helm (https://helm.sh)
- **Version:** v4.2.1
- **Released:** Jun 12, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/helm/updates/v4.2.1/

## Executive Summary (TL;DR)
Helm v4.2.1. Source highlight: Helm v4.2.1 is a patch release. Users are encouraged to upgrade for the best experience.

## Bug Fixes
- for discussing PRs, code, and bugs
- Test, debug, and contribute charts: ArtifactHub/packages
- Fixed data race detected by -race flag when concurrent goroutines (upgrade + rollback, install + uninstall) both call GetWaiterWithOptions on the same FailingKubeClient instance #31925
- Fixed helm command success messages writing to stderr instead of stdout. Now correctly outputing to stdout #32056
- Fixed Helm 4 emitting "unable to find exact version" when using version range constraints #31757
- Fixed a race condition in WaitForDelete where the status observer canceled the watch too early, causing intermittent failures when running a full test suite #32081