Update CHANGELOG for v16.2.0.beta.4 release

Added missing changelog entries for user-visible changes:

- Deprecated: Node renderer bundlePath renamed to serverBundleCachePath
- Fixed: Descriptor closed error on node renderer worker restart
- Fixed: Reverted component loading strategy change that caused issues

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: justin808

CHANGELOG.md

@@ -55,7 +55,15 @@ Changes since the last non-beta release.
 
 - **`generated_component_packs_loading_strategy` now defaults based on Pro license**: When using Shakapacker >= 8.2.0, the default loading strategy is now `:async` for Pro users and `:defer` for non-Pro users. This provides optimal performance for Pro users while maintaining compatibility for non-Pro users. You can still explicitly set the strategy in your configuration. [PR #1993](https://github.com/shakacode/react_on_rails/pull/1993) by [AbanoubGhadban](https://github.com/AbanoubGhadban).
 
-#### Bug Fixes
+#### Deprecated
+
+- **Node Renderer Configuration**: Renamed `bundlePath` configuration option to `serverBundleCachePath` in the node renderer to better describe its purpose and avoid confusion with Shakapacker's public bundle path. The old `bundlePath` option continues to work with deprecation warnings. Both `RENDERER_SERVER_BUNDLE_CACHE_PATH` (new) and `RENDERER_BUNDLE_PATH` (deprecated) environment variables are supported. [PR 2008](https://github.com/shakacode/react_on_rails/pull/2008) by [justin808](https://github.com/justin808).
+
+#### Fixed
+
+- **Node Renderer Worker Restart**: Fixed "descriptor closed" error that occurred when the node renderer restarts while handling an in-progress request (especially streaming requests). Workers now perform graceful shutdowns: they disconnect from the cluster to stop receiving new requests, wait for active requests to complete, then shut down cleanly. A configurable `gracefulWorkerRestartTimeout` ensures workers are forcibly killed if they don't shut down in time. [PR 1970](https://github.com/shakacode/react_on_rails/pull/1970) by [AbanoubGhadban](https://github.com/AbanoubGhadban).
+
+- **Component Loading Strategy**: Reverted default component loading strategy change from `:defer` back to original behavior (`:sync` or `:async` when available). The previous change in #1972 caused issues and has been reverted. [PR 1981](https://github.com/shakacode/react_on_rails/pull/1981) by [justin808](https://github.com/justin808).
 
 - **Use as Git dependency**: All packages can now be installed as Git dependencies. This is useful for development and testing purposes. See [CONTRIBUTING.md](./CONTRIBUTING.md#git-dependencies) for documentation. [PR #1873](https://github.com/shakacode/react_on_rails/pull/1873) by [alexeyr-ci2](https://github.com/alexeyr-ci2).