Feature parity

This page tracks operation-level coverage of the Helm v4.2.2 SDK pinned in libhelm4j/go.mod. “Supported” means the Java client, SPI, FFM runtime, cgo export, and Go operation are all connected. It does not claim parity with every CLI formatting flag.

Supported operations

Area	Helm operations	Java namespace	Status
Releases	install, upgrade, uninstall, status, rollback, history, list, test	releases()	Supported
Release data	get all, values, manifest, hooks, notes, metadata	releases()	Supported
Charts	search repo, search hub, show chart/values/readme/CRDs/all, template, lint	charts()	Supported
Chart artifacts	pull, push, package, dependency list	charts()	Supported
Repositories	add, update, list, remove	repositories()	Supported
Registries	login, logout	registries()	Supported
Runtime	version	system()	Supported

All supported operations use structured requests and results. Helm v4 wait strategies (WATCHER, LEGACY, HOOK_ONLY), server-side apply choices, OCI chart references, credentials, and TLS options are represented in the model where the underlying action accepts them.

Gaps

Capability	Current state
Dependency build and update	Implemented inside libhelm4j, but DependencyRequest exposes only list behavior
Engine-level Kubernetes context	HelmClientOptions.kubeContext() is ignored by the native runtime
Provider-specific properties	Accepted by HelmClientOptions, but unused by the native runtime
Repository index, chart create, chart verify	Not exposed
Helm plugins	Not exposed
Native distribution	Linux libhelm4j.so is built from source; no published platform artifacts

CLI presentation and shell integration commands such as completion, environment output, and generated command docs are intentionally outside the typed SDK surface.