Prepare 19.0.5-rc.8 changelog (#81)

Merge criteria checked before squash merge:

- Full `gh pr checks 81` list was green: unit-tests, e2e-tests, verify-artifacts, compatibility matrix legs, Dependabot validation, Cursor Bugbot, CodeRabbit, and Greptile passed; advisory Claude/canary jobs were skipped.
- PR was `CLEAN` / `MERGEABLE` and no unresolved review threads or review submissions were present.
- Local validation passed on the release-motion branch: `yarn install --frozen-lockfile`, `yarn verify:artifacts`, `yarn build`, `yarn test`, and `git diff --check`.
- `yarn release:dry-run` read `CHANGELOG.md` and `package.json` as `19.0.5-rc.8`, confirmed prerelease `next`, then stopped before mutation because the worker branch was not `main`.
- Release-state reads showed `19.0.5-rc.8` absent from npm versions, origin tags, and GitHub releases before merge.

This merge only prepares `main` for the 19.0.5-rc.8 release motion. Actual npm publish, git tag push, and GitHub release creation remain maintainer-only through the protected release workflow.

Author: justin808

CHANGELOG.md

@@ -2,13 +2,11 @@
 
 All notable changes to this package will be documented in this file.
 
-## [Unreleased]
-
-### Changed
-- Ported the webpack RSC plugin from the vendored built JavaScript artifact (`src/react-server-dom-webpack/cjs/react-server-dom-webpack-plugin.js`) to first-class TypeScript source at `src/webpack/RSCWebpackPlugin.ts`, preserving full behavior parity (server manifest emission, CSS/JS chunk scanning, runtime-chunk filtering, dependency-type chunk-group manifest construction with eager-import fallback, duplicate-package runtime detection, and hot-update CSS exclusion). The `./WebpackPlugin`, `./WebpackLoader`, and `./RSCReferenceDiscoveryPlugin` exports are unchanged; the vendored plugin file remains in the package but is no longer used by any export path. ([#87])
+## [19.0.5-rc.8] - 2026-06-13
 
 ### Fixed
-- Updated the vendored `react-server-dom-webpack` runtime from the React 19.0.4 security level to 19.0.7, applying the upstream React Server Components reply-decoding denial-of-service fixes for CVE-2026-23869 (GHSA-479c-33wc-g2pg) and CVE-2026-23870 (GHSA-rv78-f8rc-xrxh) while preserving the in-repo Flight CSS hint behavior. Note: the upstream CVE-2026-23869 fix changes the reply wire format for nested `FormData`, so client and server must both run the patched runtime (both are shipped together in this package); pairing with a pre-19.0.5 `react-server-dom-webpack` on the other side silently drops nested `FormData` entries. ([#86])
+- Fixed Webpack client manifest generation to bind each client component to the chunk group created by its client-reference dependency, avoiding cross-reference chunk over-preloads while preserving entries for eager-imported client references. ([#54])
+- Updated the vendored `react-server-dom-webpack` runtime from the React 19.0.4 security level to 19.0.7, applying the upstream React Server Components reply-decoding denial-of-service fixes for CVE-2026-23869 (GHSA-479c-33wc-g2pg) and CVE-2026-23870 (GHSA-rv78-f8rc-xrxh) while preserving the in-repo Flight CSS hint behavior. Note: the upstream CVE-2026-23869 fix changes the reply wire format for nested `FormData`, so client and server must both run the patched runtime shipped by this package. ([#86])
 
 ## [19.0.5-rc.7] - 2026-06-09
 
@@ -79,6 +77,7 @@ All notable changes to this package will be documented in this file.
 ### Changed
 - Released the first `19.0.5` release candidate.
 
+[19.0.5-rc.8]: https://github.com/shakacode/react_on_rails_rsc/compare/19.0.5-rc.7...19.0.5-rc.8
 [19.0.5-rc.7]: https://github.com/shakacode/react_on_rails_rsc/compare/19.0.5-rc.6...19.0.5-rc.7
 [19.0.5-rc.6]: https://github.com/shakacode/react_on_rails_rsc/compare/19.0.5-rc.5...19.0.5-rc.6
 [19.0.5-rc.5]: https://github.com/shakacode/react_on_rails_rsc/compare/19.0.5-rc.4...19.0.5-rc.5
@@ -88,5 +87,5 @@ All notable changes to this package will be documented in this file.
 [19.0.5-rc.1]: https://github.com/shakacode/react_on_rails_rsc/releases/tag/19.0.5-rc.1
 
 [#52]: https://github.com/shakacode/react_on_rails_rsc/pull/52
+[#54]: https://github.com/shakacode/react_on_rails_rsc/pull/54
 [#86]: https://github.com/shakacode/react_on_rails_rsc/pull/86
-[#87]: https://github.com/shakacode/react_on_rails_rsc/pull/87

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-on-rails-rsc",
-  "version": "19.0.5-rc.7",
+  "version": "19.0.5-rc.8",
   "description": "React Server Components support for react_on_rails Ruby gem",
   "exports": {
     "./client": {