- Introduces a redesigned plugin system supporting WebAssembly plugins, post‑renderers as plugins, and logging via slog.
- Adds server‑side apply, enhanced resource watching with kstatus, local content caching, reproducible chart builds, and an updated SDK API with multi‑chart version support.
- Marks a major version bump with backward‑incompatible CLI flag/output and SDK changes, requiring testing for Helm v3 to v4 migrations.
Helm v4.0.0
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Fixed panic in engine when handling empty files.
Improved error reporting for helm template debug and fixed panic on repeated IsReachable calls.