Helm 4 ditches the old plugin model for a sharper, plugin-first architecture powered by WebAssembly. That means isolation/control, and deeper customization - if you're ready to adapt!
Post-renderers are now plugins. That breaks compatibility with earlier exec-based setups, so expect some rewiring. On the plus side, new plugin types give you more hooks into Helm's guts.
Other changes: digest-based chart installs (think immutability), support for multi-document values files, and cleaner deployment feedback thanks to better kstatus signals.
Big picture: Helm 4 redraws the plugin boundary. WASM runs the show. The CI/CD pipeline just got way more composable.
