Validate tutorial on React on Rails 17.2.1 RC (#871)

Pin the published candidate gems and npm packages with compatible
React/RSC 19.3.1.

Align Ruby runtime, image and CI inputs to 3.4.9. Build RSpec assets in
test mode so first-request compilation preserves renderer artifact
identity.

Refs shakacode/react_on_rails#5245. Post-merge workflow exercise is
tracked in #872.

Author: justin808

.controlplane/Dockerfile

@@ -1,5 +1,5 @@
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
-ARG RUBY_VERSION=3.4.6
+ARG RUBY_VERSION=3.4.9
 FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim AS base
 
 # Current commit hash environment variable

.github/workflows/demo-fleet-smoke.yml

@@ -13,7 +13,7 @@ jobs:
   smoke:
     uses: shakacode/react_on_rails/.github/workflows/demo-fleet-smoke.yml@613c6c2a251a782328b26d68e7f23daa9b677497 # Source snapshot 2026-07-18
     with:
-      ruby-version: "3.4.6"
+      ruby-version: "3.4.9"
       node-version: "22"
       install-command: >-
         bundle config set path vendor/bundle && bundle install --jobs 4 --retry 3 && yarn install --frozen-lockfile &&

.github/workflows/js_test.yml

@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         node: [22.x]
-        ruby: [3.4.6]
+        ruby: [3.4.9]
 
     env:
       RAILS_ENV: test

.github/workflows/lint_test.yml

@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         node: [22.x]
-        ruby: [3.4.6]
+        ruby: [3.4.9]
 
     env:
       RAILS_ENV: test

.github/workflows/rspec_test.yml

@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         node: [22.x]
-        ruby: [3.4.6]
+        ruby: [3.4.9]
 
     services:
       postgres:
@@ -88,7 +88,7 @@ jobs:
         run: yarn res:build
 
       - name: Build shakapacker chunks
-        run: NODE_ENV=development bundle exec bin/shakapacker
+        run: bundle exec bin/shakapacker
 
       - name: Start Node renderer for SSR
         run: |

.ruby-version

@@ -1 +1 @@
-3.4.6
+3.4.9

Gemfile

@@ -3,10 +3,10 @@
 source "https://rubygems.org"
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby "3.4.6"
+ruby "3.4.9"
 
 gem "cpflow", "6.0.1", require: false
-gem "react_on_rails_pro", "17.2.0"
+gem "react_on_rails_pro", "17.2.1.rc.0"
 gem "shakapacker", "10.3.2"
 
 # Bundle edge Rails instead: gem "rails", github: "rails/rails"

Gemfile.lock

@@ -343,21 +343,21 @@ GEM
       erb
       psych (>= 4.0.0)
       tsort
-    react_on_rails (17.2.0)
+    react_on_rails (17.2.1.rc.0)
       addressable
       connection_pool
       execjs (~> 2.5)
       rails (>= 5.2)
       rainbow (~> 3.0)
       shakapacker (>= 6.0)
-    react_on_rails_pro (17.2.0)
+    react_on_rails_pro (17.2.1.rc.0)
       async (>= 2.29)
       async-http (~> 0.95)
       execjs (~> 2.9)
       io-endpoint (~> 0.17.0)
       jwt (>= 2.8, < 4)
       nokogiri (>= 1.12, < 2)
-      react_on_rails (= 17.2.0)
+      react_on_rails (= 17.2.1.rc.0)
     redcarpet (3.6.0)
     redis (5.3.0)
       redis-client (>= 0.22.0)
@@ -540,7 +540,7 @@ DEPENDENCIES
   rails-html-sanitizer
   rails_best_practices
   rainbow
-  react_on_rails_pro (= 17.2.0)
+  react_on_rails_pro (= 17.2.1.rc.0)
   redcarpet
   redis (~> 5.0)
   rspec-rails (~> 6.0.0)
@@ -562,7 +562,7 @@ DEPENDENCIES
   web-console
 
 RUBY VERSION
-   ruby 3.4.6p54
+   ruby 3.4.9p82
 
 BUNDLED WITH
    2.4.17

README.md

@@ -129,7 +129,7 @@ See package.json and Gemfile for versions
 
 ### Prerequisites
 - Node `v22.3.0` or above. Be sure that you have Node installed! We suggest using [nvm](https://github.com/creationix/nvm) and running `nvm list` to check the active Node version. See this article [Updating and using nvm](http://forum.shakacode.com/t/updating-and-using-nvm/293).
-- Ruby 3.4.6 or above
+- Ruby 3.4.9 or above
 - Postgres v9.2 or above
 - Redis. Check that you have Redis installed by running `which redis-server`. If missing and on MacOS, install with Homebrew (`brew install redis`)
 - [Yarn](https://yarnpkg.com/).
@@ -184,13 +184,13 @@ assets_bundler: rspack
 
 ### Version Targets
 
-- `react_on_rails_pro` gem: `17.1.0`
-- `react-on-rails-pro` npm package: `17.1.0`
-- `react-on-rails-pro-node-renderer` npm package: `17.1.0`
-- `react-on-rails-rsc` npm package: `19.3.0`
-- `shakapacker` gem/npm package: `10.2.0`
+- `react_on_rails_pro` gem: `17.2.1.rc.0`
+- `react-on-rails-pro` npm package: `17.2.1-rc.0`
+- `react-on-rails-pro-node-renderer` npm package: `17.2.1-rc.0`
+- `react-on-rails-rsc` npm package: `19.3.1`
+- `shakapacker` gem/npm package: `10.3.2`
 - `@rspack/core` and `@rspack/cli`: `2.0.4`
-- `react`, `react-dom`, and `react-server-dom-webpack`: `19.2.8` (exact RC validation pins)
+- `react`, `react-dom`, and `react-server-dom-webpack`: `19.3.1` (exact RC validation pins)
 
 ### Why Rspack
 

conductor-setup.sh

@@ -40,7 +40,7 @@ run_cmd() {
     fi
 }
 
-# Note: This project requires Ruby 3.4.6.
+# Note: This project requires Ruby 3.4.9.
 # Please ensure you have the correct Ruby version active before running this script.
 
 # Check required tools