diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1866815d2..0da09c120 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,18 +14,18 @@ jobs:
   benchmark:
     runs-on: ubuntu-latest
     env:
-      BUNDLE_GEMFILE: gemfiles/rails_8.0.gemfile
+      BUNDLE_GEMFILE: gemfiles/rails_8.1.gemfile
     steps:
     - uses: actions/checkout@v4.1.1
     - name: Setup Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.4
+        ruby-version: 4.0
         bundler-cache: true
     - name: Run benchmarks
       run: |
-        bundle exec appraisal rails-8.0 rake partial_benchmark
-        bundle exec appraisal rails-8.0 rake translatable_benchmark
+        bundle exec appraisal rails-8.1 rake partial_benchmark
+        bundle exec appraisal rails-8.1 rake translatable_benchmark
   test:
     name: test (Rails ${{ matrix.rails_version }}, Ruby ${{ matrix.ruby_version }})
     runs-on: ubuntu-latest
@@ -40,7 +40,7 @@ jobs:
             rails_version: "7.2"
           - ruby_version: "3.4"
             rails_version: "8.0"
-          - ruby_version: "3.4"
+          - ruby_version: "4.0"
             rails_version: "8.1"
           - ruby_version: "head"
             rails_version: "main"
@@ -83,7 +83,7 @@ jobs:
     - name: Setup Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.4
+        ruby-version: 4.0
         bundler-cache: true
         working-directory: 'view_component'
     - uses: actions/setup-node@v4
@@ -99,7 +99,7 @@ jobs:
         bundle --quiet && bundle exec rake
       env:
         VIEW_COMPONENT_PATH: ../view_component
-        RAILS_VERSION: '8.0.2'
+        RAILS_VERSION: '8.1.0'
         PARALLEL_WORKERS: '1'
   coverage:
     needs: test
@@ -109,7 +109,7 @@ jobs:
     - name: Setup Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.4
+        ruby-version: 4.0
         bundler-cache: true
     - name: Download coverage results
       uses: actions/download-artifact@v4.3.0
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index d86bb2bf8..30754e479 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -73,7 +73,7 @@ jobs:
     - name: Setup Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.4
+        ruby-version: 4.0
     - uses: actions/cache@v4
       with:
         path: vendor/bundle
diff --git a/.tool-versions b/.tool-versions
index 3f03c7a73..97c86d65e 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1 +1 @@
-ruby 3.4.7
+ruby 4.0.0
diff --git a/Gemfile b/Gemfile
index ac626dd0c..54bbf6603 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,11 +3,11 @@
 source "https://rubygems.org"
 gemspec
 
-rails_version = (ENV["RAILS_VERSION"] || "~> 8").to_s
+rails_version = (ENV["RAILS_VERSION"] || "~> 8.1").to_s
 
 gem "rails", (rails_version == "main") ? {git: "https://github.com/rails/rails", ref: "main"} : rails_version
 
-ruby_version = (ENV["RUBY_VERSION"] || "~> 3.4").to_s
+ruby_version = (ENV["RUBY_VERSION"] || "~> 4.0").to_s
 ruby ruby_version
 
 group :development, :test do
@@ -26,6 +26,7 @@ group :development, :test do
   gem "m", "~> 1"
   gem "method_source", "~> 1"
   gem "minitest", "~> 6"
+  gem "nokogiri", "1.19.0"
   gem "propshaft", "~> 1"
   gem "puma", ">= 6"
   gem "rake", "~> 13"
diff --git a/Gemfile.lock b/Gemfile.lock
index b704511fc..29562891f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,29 +11,29 @@ GEM
   specs:
     action_text-trix (2.1.16)
       railties
-    actioncable (8.1.1)
-      actionpack (= 8.1.1)
-      activesupport (= 8.1.1)
+    actioncable (8.1.2)
+      actionpack (= 8.1.2)
+      activesupport (= 8.1.2)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
       zeitwerk (~> 2.6)
-    actionmailbox (8.1.1)
-      actionpack (= 8.1.1)
-      activejob (= 8.1.1)
-      activerecord (= 8.1.1)
-      activestorage (= 8.1.1)
-      activesupport (= 8.1.1)
+    actionmailbox (8.1.2)
+      actionpack (= 8.1.2)
+      activejob (= 8.1.2)
+      activerecord (= 8.1.2)
+      activestorage (= 8.1.2)
+      activesupport (= 8.1.2)
       mail (>= 2.8.0)
-    actionmailer (8.1.1)
-      actionpack (= 8.1.1)
-      actionview (= 8.1.1)
-      activejob (= 8.1.1)
-      activesupport (= 8.1.1)
+    actionmailer (8.1.2)
+      actionpack (= 8.1.2)
+      actionview (= 8.1.2)
+      activejob (= 8.1.2)
+      activesupport (= 8.1.2)
       mail (>= 2.8.0)
       rails-dom-testing (~> 2.2)
-    actionpack (8.1.1)
-      actionview (= 8.1.1)
-      activesupport (= 8.1.1)
+    actionpack (8.1.2)
+      actionview (= 8.1.2)
+      activesupport (= 8.1.2)
       nokogiri (>= 1.8.5)
       rack (>= 2.2.4)
       rack-session (>= 1.0.1)
@@ -41,36 +41,36 @@ GEM
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
       useragent (~> 0.16)
-    actiontext (8.1.1)
+    actiontext (8.1.2)
       action_text-trix (~> 2.1.15)
-      actionpack (= 8.1.1)
-      activerecord (= 8.1.1)
-      activestorage (= 8.1.1)
-      activesupport (= 8.1.1)
+      actionpack (= 8.1.2)
+      activerecord (= 8.1.2)
+      activestorage (= 8.1.2)
+      activesupport (= 8.1.2)
       globalid (>= 0.6.0)
       nokogiri (>= 1.8.5)
-    actionview (8.1.1)
-      activesupport (= 8.1.1)
+    actionview (8.1.2)
+      activesupport (= 8.1.2)
       builder (~> 3.1)
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    activejob (8.1.1)
-      activesupport (= 8.1.1)
+    activejob (8.1.2)
+      activesupport (= 8.1.2)
       globalid (>= 0.3.6)
-    activemodel (8.1.1)
-      activesupport (= 8.1.1)
-    activerecord (8.1.1)
-      activemodel (= 8.1.1)
-      activesupport (= 8.1.1)
+    activemodel (8.1.2)
+      activesupport (= 8.1.2)
+    activerecord (8.1.2)
+      activemodel (= 8.1.2)
+      activesupport (= 8.1.2)
       timeout (>= 0.4.0)
-    activestorage (8.1.1)
-      actionpack (= 8.1.1)
-      activejob (= 8.1.1)
-      activerecord (= 8.1.1)
-      activesupport (= 8.1.1)
+    activestorage (8.1.2)
+      actionpack (= 8.1.2)
+      activejob (= 8.1.2)
+      activerecord (= 8.1.2)
+      activesupport (= 8.1.2)
       marcel (~> 1.0)
-    activesupport (8.1.1)
+    activesupport (8.1.2)
       base64
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.3.1)
@@ -83,8 +83,8 @@ GEM
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
       uri (>= 0.13.1)
-    addressable (2.8.7)
-      public_suffix (>= 2.0.2, < 7.0)
+    addressable (2.8.8)
+      public_suffix (>= 2.0.2, < 8.0)
     allocation_stats (0.1.5)
     ansi (1.5.0)
     appraisal (2.5.0)
@@ -145,14 +145,14 @@ GEM
       temple (>= 0.8.2)
       thor
       tilt
-    herb (0.8.3-aarch64-linux-gnu)
-    herb (0.8.3-aarch64-linux-musl)
-    herb (0.8.3-arm-linux-gnu)
-    herb (0.8.3-arm-linux-musl)
-    herb (0.8.3-arm64-darwin)
-    herb (0.8.3-x86_64-darwin)
-    herb (0.8.3-x86_64-linux-gnu)
-    herb (0.8.3-x86_64-linux-musl)
+    herb (0.8.7-aarch64-linux-gnu)
+    herb (0.8.7-aarch64-linux-musl)
+    herb (0.8.7-arm-linux-gnu)
+    herb (0.8.7-arm-linux-musl)
+    herb (0.8.7-arm64-darwin)
+    herb (0.8.7-x86_64-darwin)
+    herb (0.8.7-x86_64-linux-gnu)
+    herb (0.8.7-x86_64-linux-musl)
     i18n (1.14.8)
       concurrent-ruby (~> 1.0)
     io-console (0.8.2)
@@ -184,7 +184,7 @@ GEM
     mini_mime (1.1.5)
     minitest (6.0.1)
       prism (~> 1.5)
-    net-imap (0.5.12)
+    net-imap (0.6.2)
       date
       net-protocol
     net-pop (0.1.2)
@@ -217,7 +217,7 @@ GEM
     pp (0.6.3)
       prettyprint
     prettyprint (0.2.0)
-    prism (1.6.0)
+    prism (1.7.0)
     propshaft (1.3.1)
       actionpack (>= 7.0.0)
       activesupport (>= 7.0.0)
@@ -225,7 +225,7 @@ GEM
     psych (5.3.1)
       date
       stringio
-    public_suffix (6.0.2)
+    public_suffix (7.0.2)
     puma (7.1.0)
       nio4r (~> 2.0)
     racc (1.8.1)
@@ -237,20 +237,20 @@ GEM
       rack (>= 1.3)
     rackup (2.3.1)
       rack (>= 3)
-    rails (8.1.1)
-      actioncable (= 8.1.1)
-      actionmailbox (= 8.1.1)
-      actionmailer (= 8.1.1)
-      actionpack (= 8.1.1)
-      actiontext (= 8.1.1)
-      actionview (= 8.1.1)
-      activejob (= 8.1.1)
-      activemodel (= 8.1.1)
-      activerecord (= 8.1.1)
-      activestorage (= 8.1.1)
-      activesupport (= 8.1.1)
+    rails (8.1.2)
+      actioncable (= 8.1.2)
+      actionmailbox (= 8.1.2)
+      actionmailer (= 8.1.2)
+      actionpack (= 8.1.2)
+      actiontext (= 8.1.2)
+      actionview (= 8.1.2)
+      activejob (= 8.1.2)
+      activemodel (= 8.1.2)
+      activerecord (= 8.1.2)
+      activestorage (= 8.1.2)
+      activesupport (= 8.1.2)
       bundler (>= 1.15.0)
-      railties (= 8.1.1)
+      railties (= 8.1.2)
     rails-dom-testing (2.3.0)
       activesupport (>= 5.0.0)
       minitest
@@ -258,9 +258,9 @@ GEM
     rails-html-sanitizer (1.6.2)
       loofah (~> 2.21)
       nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
-    railties (8.1.1)
-      actionpack (= 8.1.1)
-      activesupport (= 8.1.1)
+    railties (8.1.2)
+      actionpack (= 8.1.2)
+      activesupport (= 8.1.2)
       irb (~> 1.13)
       rackup (>= 1.0.0)
       rake (>= 12.2)
@@ -278,7 +278,7 @@ GEM
       herb (>= 0.8.0, < 1.0.0)
     redis (5.4.1)
       redis-client (>= 0.22.0)
-    redis-client (0.26.1)
+    redis-client (0.26.3)
       connection_pool
     regexp_parser (2.11.3)
     reline (0.6.3)
@@ -312,16 +312,16 @@ GEM
       rubocop-ast (>= 1.47.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.48.0)
+    rubocop-ast (1.49.0)
       parser (>= 3.3.7.2)
-      prism (~> 1.4)
+      prism (~> 1.7)
     rubocop-md (2.0.3)
       lint_roller (~> 1.1)
       rubocop (>= 1.72.1)
-    rubocop-performance (1.25.0)
+    rubocop-performance (1.26.1)
       lint_roller (~> 1.1)
       rubocop (>= 1.75.0, < 2.0)
-      rubocop-ast (>= 1.38.0, < 2.0)
+      rubocop-ast (>= 1.47.1, < 2.0)
     ruby-progressbar (1.13.0)
     rubyzip (3.2.2)
     securerandom (0.4.1)
@@ -362,26 +362,26 @@ GEM
     standard-custom (1.0.2)
       lint_roller (~> 1.0)
       rubocop (~> 1.50)
-    standard-performance (1.8.0)
+    standard-performance (1.9.0)
       lint_roller (~> 1.1)
-      rubocop-performance (~> 1.25.0)
+      rubocop-performance (~> 1.26.0)
     stringio (3.2.0)
     tailwindcss-rails (4.4.0)
       railties (>= 7.0.0)
       tailwindcss-ruby (~> 4.0)
-    tailwindcss-ruby (4.1.16)
-    tailwindcss-ruby (4.1.16-aarch64-linux-gnu)
-    tailwindcss-ruby (4.1.16-aarch64-linux-musl)
-    tailwindcss-ruby (4.1.16-arm64-darwin)
-    tailwindcss-ruby (4.1.16-x86_64-darwin)
-    tailwindcss-ruby (4.1.16-x86_64-linux-gnu)
-    tailwindcss-ruby (4.1.16-x86_64-linux-musl)
+    tailwindcss-ruby (4.1.18)
+    tailwindcss-ruby (4.1.18-aarch64-linux-gnu)
+    tailwindcss-ruby (4.1.18-aarch64-linux-musl)
+    tailwindcss-ruby (4.1.18-arm64-darwin)
+    tailwindcss-ruby (4.1.18-x86_64-darwin)
+    tailwindcss-ruby (4.1.18-x86_64-linux-gnu)
+    tailwindcss-ruby (4.1.18-x86_64-linux-musl)
     temple (0.10.4)
     terminal-table (4.0.0)
       unicode-display_width (>= 1.1.1, < 4)
-    thor (1.4.0)
-    tilt (2.6.1)
-    timeout (0.4.4)
+    thor (1.5.0)
+    tilt (2.7.0)
+    timeout (0.6.0)
     tsort (0.2.0)
     turbo-rails (2.0.20)
       actionpack (>= 7.1.0)
@@ -390,11 +390,11 @@ GEM
       concurrent-ruby (~> 1.0)
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
-    unicode-emoji (4.1.0)
+    unicode-emoji (4.2.0)
     uri (1.1.1)
     useragent (0.16.11)
     warning (1.5.0)
-    webrick (1.9.1)
+    webrick (1.9.2)
     websocket (1.2.11)
     websocket-driver (0.8.0)
       base64
@@ -433,9 +433,10 @@ DEPENDENCIES
   m (~> 1)
   method_source (~> 1)
   minitest (~> 6)
+  nokogiri (= 1.19.0)
   propshaft (~> 1)
   puma (>= 6)
-  rails (~> 8)
+  rails (~> 8.1)
   rails-dom-testing (~> 2.3.0)
   rake (~> 13)
   reactionview
@@ -456,7 +457,7 @@ DEPENDENCIES
   yard-activesupport-concern (< 1)
 
 RUBY VERSION
-   ruby 3.4.7p58
+   ruby 4.0.0p0
 
 BUNDLED WITH
    2.6.2
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 0083c72aa..955dbc39b 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -10,6 +10,10 @@ nav_order: 6
 
 ## main
 
+* Use Ruby 4.0.0 in CI and dev.
+
+    *Joel Hawksley*
+
 ## 4.2.0
 
 * Fix translation scope resolution in deeply nested component blocks (3+ levels). Translations called inside deeply nested slot blocks using `renders_many`/`renders_one` were incorrectly resolving to an intermediate component's scope instead of the partial's scope where the block was defined. The fix captures the virtual path at block definition time and restores it during block execution, ensuring translations always resolve relative to where the block was created regardless of nesting depth.
diff --git a/gemfiles/rails_8.1.gemfile b/gemfiles/rails_8.1.gemfile
index 3e14049df..0f07ffe95 100644
--- a/gemfiles/rails_8.1.gemfile
+++ b/gemfiles/rails_8.1.gemfile
@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-ruby "~> 3.4"
+ruby "~> 4.0"
 
 gem "rails", "~> 8.1.0"
 
diff --git a/gemfiles/rails_8.1.gemfile.lock b/gemfiles/rails_8.1.gemfile.lock
index 045156006..2dfdf1277 100644
--- a/gemfiles/rails_8.1.gemfile.lock
+++ b/gemfiles/rails_8.1.gemfile.lock
@@ -9,31 +9,31 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    action_text-trix (2.1.15)
+    action_text-trix (2.1.16)
       railties
-    actioncable (8.1.1)
-      actionpack (= 8.1.1)
-      activesupport (= 8.1.1)
+    actioncable (8.1.2)
+      actionpack (= 8.1.2)
+      activesupport (= 8.1.2)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
       zeitwerk (~> 2.6)
-    actionmailbox (8.1.1)
-      actionpack (= 8.1.1)
-      activejob (= 8.1.1)
-      activerecord (= 8.1.1)
-      activestorage (= 8.1.1)
-      activesupport (= 8.1.1)
+    actionmailbox (8.1.2)
+      actionpack (= 8.1.2)
+      activejob (= 8.1.2)
+      activerecord (= 8.1.2)
+      activestorage (= 8.1.2)
+      activesupport (= 8.1.2)
       mail (>= 2.8.0)
-    actionmailer (8.1.1)
-      actionpack (= 8.1.1)
-      actionview (= 8.1.1)
-      activejob (= 8.1.1)
-      activesupport (= 8.1.1)
+    actionmailer (8.1.2)
+      actionpack (= 8.1.2)
+      actionview (= 8.1.2)
+      activejob (= 8.1.2)
+      activesupport (= 8.1.2)
       mail (>= 2.8.0)
       rails-dom-testing (~> 2.2)
-    actionpack (8.1.1)
-      actionview (= 8.1.1)
-      activesupport (= 8.1.1)
+    actionpack (8.1.2)
+      actionview (= 8.1.2)
+      activesupport (= 8.1.2)
       nokogiri (>= 1.8.5)
       rack (>= 2.2.4)
       rack-session (>= 1.0.1)
@@ -41,36 +41,36 @@ GEM
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
       useragent (~> 0.16)
-    actiontext (8.1.1)
+    actiontext (8.1.2)
       action_text-trix (~> 2.1.15)
-      actionpack (= 8.1.1)
-      activerecord (= 8.1.1)
-      activestorage (= 8.1.1)
-      activesupport (= 8.1.1)
+      actionpack (= 8.1.2)
+      activerecord (= 8.1.2)
+      activestorage (= 8.1.2)
+      activesupport (= 8.1.2)
       globalid (>= 0.6.0)
       nokogiri (>= 1.8.5)
-    actionview (8.1.1)
-      activesupport (= 8.1.1)
+    actionview (8.1.2)
+      activesupport (= 8.1.2)
       builder (~> 3.1)
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    activejob (8.1.1)
-      activesupport (= 8.1.1)
+    activejob (8.1.2)
+      activesupport (= 8.1.2)
       globalid (>= 0.3.6)
-    activemodel (8.1.1)
-      activesupport (= 8.1.1)
-    activerecord (8.1.1)
-      activemodel (= 8.1.1)
-      activesupport (= 8.1.1)
+    activemodel (8.1.2)
+      activesupport (= 8.1.2)
+    activerecord (8.1.2)
+      activemodel (= 8.1.2)
+      activesupport (= 8.1.2)
       timeout (>= 0.4.0)
-    activestorage (8.1.1)
-      actionpack (= 8.1.1)
-      activejob (= 8.1.1)
-      activerecord (= 8.1.1)
-      activesupport (= 8.1.1)
+    activestorage (8.1.2)
+      actionpack (= 8.1.2)
+      activejob (= 8.1.2)
+      activerecord (= 8.1.2)
+      activesupport (= 8.1.2)
       marcel (~> 1.0)
-    activesupport (8.1.1)
+    activesupport (8.1.2)
       base64
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.3.1)
@@ -83,8 +83,8 @@ GEM
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
       uri (>= 0.13.1)
-    addressable (2.8.7)
-      public_suffix (>= 2.0.2, < 7.0)
+    addressable (2.8.8)
+      public_suffix (>= 2.0.2, < 8.0)
     allocation_stats (0.1.5)
     ansi (1.5.0)
     appraisal (2.5.0)
@@ -102,7 +102,7 @@ GEM
       erubi (~> 1.4)
       parser (>= 2.4)
       smart_properties
-    bigdecimal (3.3.1)
+    bigdecimal (4.0.1)
     builder (3.3.0)
     capybara (3.40.0)
       addressable
@@ -113,18 +113,18 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
-    concurrent-ruby (1.3.5)
-    connection_pool (2.5.4)
+    concurrent-ruby (1.3.6)
+    connection_pool (3.0.2)
     crass (1.0.6)
     cuprite (0.17)
       capybara (~> 3.0)
       ferrum (~> 0.17.0)
-    date (3.5.0)
+    date (3.5.1)
     diff-lcs (1.6.2)
     docile (1.4.1)
     drb (2.2.3)
     dry-initializer (3.2.0)
-    erb (6.0.0)
+    erb (6.0.1)
     erb_lint (0.9.0)
       activesupport
       better_html (>= 2.0.1)
@@ -145,34 +145,33 @@ GEM
       temple (>= 0.8.2)
       thor
       tilt
-    herb (0.8.2-aarch64-linux-gnu)
-    herb (0.8.2-aarch64-linux-musl)
-    herb (0.8.2-arm-linux-gnu)
-    herb (0.8.2-arm-linux-musl)
-    herb (0.8.2-arm64-darwin)
-    herb (0.8.2-x86_64-darwin)
-    herb (0.8.2-x86_64-linux-gnu)
-    herb (0.8.2-x86_64-linux-musl)
-    i18n (1.14.7)
+    herb (0.8.7-aarch64-linux-gnu)
+    herb (0.8.7-aarch64-linux-musl)
+    herb (0.8.7-arm-linux-gnu)
+    herb (0.8.7-arm-linux-musl)
+    herb (0.8.7-arm64-darwin)
+    herb (0.8.7-x86_64-darwin)
+    herb (0.8.7-x86_64-linux-gnu)
+    herb (0.8.7-x86_64-linux-musl)
+    i18n (1.14.8)
       concurrent-ruby (~> 1.0)
-    io-console (0.8.1)
-    irb (1.15.3)
+    io-console (0.8.2)
+    irb (1.16.0)
       pp (>= 0.6.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     jbuilder (2.14.1)
       actionview (>= 7.0.0)
       activesupport (>= 7.0.0)
-    json (2.16.0)
+    json (2.18.0)
     language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
     logger (1.7.0)
-    loofah (2.24.1)
+    loofah (2.25.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
-    m (1.6.2)
-      method_source (>= 0.6.7)
-      rake (>= 0.9.2.2)
+    m (1.7.0)
+      rake
     mail (2.9.0)
       logger
       mini_mime (>= 0.1.1)
@@ -183,8 +182,8 @@ GEM
     matrix (0.4.3)
     method_source (1.1.0)
     mini_mime (1.1.5)
-    minitest (5.26.2)
-    net-imap (0.5.12)
+    minitest (5.27.0)
+    net-imap (0.6.2)
       date
       net-protocol
     net-pop (0.1.2)
@@ -194,21 +193,21 @@ GEM
     net-smtp (0.5.1)
       net-protocol
     nio4r (2.7.5)
-    nokogiri (1.18.10-aarch64-linux-gnu)
+    nokogiri (1.19.0-aarch64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.10-aarch64-linux-musl)
+    nokogiri (1.19.0-aarch64-linux-musl)
       racc (~> 1.4)
-    nokogiri (1.18.10-arm-linux-gnu)
+    nokogiri (1.19.0-arm-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.10-arm-linux-musl)
+    nokogiri (1.19.0-arm-linux-musl)
       racc (~> 1.4)
-    nokogiri (1.18.10-arm64-darwin)
+    nokogiri (1.19.0-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.10-x86_64-darwin)
+    nokogiri (1.19.0-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.10-x86_64-linux-gnu)
+    nokogiri (1.19.0-x86_64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.10-x86_64-linux-musl)
+    nokogiri (1.19.0-x86_64-linux-musl)
       racc (~> 1.4)
     parallel (1.27.0)
     parser (3.3.10.0)
@@ -217,15 +216,15 @@ GEM
     pp (0.6.3)
       prettyprint
     prettyprint (0.2.0)
-    prism (1.6.0)
+    prism (1.7.0)
     propshaft (1.3.1)
       actionpack (>= 7.0.0)
       activesupport (>= 7.0.0)
       rack
-    psych (5.2.6)
+    psych (5.3.1)
       date
       stringio
-    public_suffix (6.0.2)
+    public_suffix (7.0.2)
     puma (7.1.0)
       nio4r (~> 2.0)
     racc (1.8.1)
@@ -235,22 +234,22 @@ GEM
       rack (>= 3.0.0)
     rack-test (2.2.0)
       rack (>= 1.3)
-    rackup (2.2.1)
+    rackup (2.3.1)
       rack (>= 3)
-    rails (8.1.1)
-      actioncable (= 8.1.1)
-      actionmailbox (= 8.1.1)
-      actionmailer (= 8.1.1)
-      actionpack (= 8.1.1)
-      actiontext (= 8.1.1)
-      actionview (= 8.1.1)
-      activejob (= 8.1.1)
-      activemodel (= 8.1.1)
-      activerecord (= 8.1.1)
-      activestorage (= 8.1.1)
-      activesupport (= 8.1.1)
+    rails (8.1.2)
+      actioncable (= 8.1.2)
+      actionmailbox (= 8.1.2)
+      actionmailer (= 8.1.2)
+      actionpack (= 8.1.2)
+      actiontext (= 8.1.2)
+      actionview (= 8.1.2)
+      activejob (= 8.1.2)
+      activemodel (= 8.1.2)
+      activerecord (= 8.1.2)
+      activestorage (= 8.1.2)
+      activesupport (= 8.1.2)
       bundler (>= 1.15.0)
-      railties (= 8.1.1)
+      railties (= 8.1.2)
     rails-dom-testing (2.3.0)
       activesupport (>= 5.0.0)
       minitest
@@ -258,9 +257,9 @@ GEM
     rails-html-sanitizer (1.6.2)
       loofah (~> 2.21)
       nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
-    railties (8.1.1)
-      actionpack (= 8.1.1)
-      activesupport (= 8.1.1)
+    railties (8.1.2)
+      actionpack (= 8.1.2)
+      activesupport (= 8.1.2)
       irb (~> 1.13)
       rackup (>= 1.0.0)
       rake (>= 12.2)
@@ -269,16 +268,16 @@ GEM
       zeitwerk (~> 2.6)
     rainbow (3.1.1)
     rake (13.3.1)
-    rdoc (6.15.1)
+    rdoc (7.0.3)
       erb
       psych (>= 4.0.0)
       tsort
-    reactionview (0.1.6)
+    reactionview (0.2.0)
       actionview (>= 7.0)
-      herb (>= 0.7.5, < 1.0.0)
+      herb (>= 0.8.0, < 1.0.0)
     redis (5.4.1)
       redis-client (>= 0.22.0)
-    redis-client (0.26.1)
+    redis-client (0.26.3)
       connection_pool
     regexp_parser (2.11.3)
     reline (0.6.3)
@@ -312,20 +311,20 @@ GEM
       rubocop-ast (>= 1.47.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.48.0)
+    rubocop-ast (1.49.0)
       parser (>= 3.3.7.2)
-      prism (~> 1.4)
+      prism (~> 1.7)
     rubocop-md (2.0.3)
       lint_roller (~> 1.1)
       rubocop (>= 1.72.1)
-    rubocop-performance (1.25.0)
+    rubocop-performance (1.26.1)
       lint_roller (~> 1.1)
       rubocop (>= 1.75.0, < 2.0)
-      rubocop-ast (>= 1.38.0, < 2.0)
+      rubocop-ast (>= 1.47.1, < 2.0)
     ruby-progressbar (1.13.0)
     rubyzip (3.2.2)
     securerandom (0.4.1)
-    selenium-webdriver (4.38.0)
+    selenium-webdriver (4.39.0)
       base64 (~> 0.2)
       logger (~> 1.4)
       rexml (~> 3.2, >= 3.2.5)
@@ -362,26 +361,26 @@ GEM
     standard-custom (1.0.2)
       lint_roller (~> 1.0)
       rubocop (~> 1.50)
-    standard-performance (1.8.0)
+    standard-performance (1.9.0)
       lint_roller (~> 1.1)
-      rubocop-performance (~> 1.25.0)
-    stringio (3.1.8)
+      rubocop-performance (~> 1.26.0)
+    stringio (3.2.0)
     tailwindcss-rails (4.4.0)
       railties (>= 7.0.0)
       tailwindcss-ruby (~> 4.0)
-    tailwindcss-ruby (4.1.16)
-    tailwindcss-ruby (4.1.16-aarch64-linux-gnu)
-    tailwindcss-ruby (4.1.16-aarch64-linux-musl)
-    tailwindcss-ruby (4.1.16-arm64-darwin)
-    tailwindcss-ruby (4.1.16-x86_64-darwin)
-    tailwindcss-ruby (4.1.16-x86_64-linux-gnu)
-    tailwindcss-ruby (4.1.16-x86_64-linux-musl)
+    tailwindcss-ruby (4.1.18)
+    tailwindcss-ruby (4.1.18-aarch64-linux-gnu)
+    tailwindcss-ruby (4.1.18-aarch64-linux-musl)
+    tailwindcss-ruby (4.1.18-arm64-darwin)
+    tailwindcss-ruby (4.1.18-x86_64-darwin)
+    tailwindcss-ruby (4.1.18-x86_64-linux-gnu)
+    tailwindcss-ruby (4.1.18-x86_64-linux-musl)
     temple (0.10.4)
     terminal-table (4.0.0)
       unicode-display_width (>= 1.1.1, < 4)
-    thor (1.4.0)
-    tilt (2.6.1)
-    timeout (0.4.4)
+    thor (1.5.0)
+    tilt (2.7.0)
+    timeout (0.6.0)
     tsort (0.2.0)
     turbo-rails (2.0.20)
       actionpack (>= 7.1.0)
@@ -390,11 +389,11 @@ GEM
       concurrent-ruby (~> 1.0)
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
-    unicode-emoji (4.1.0)
+    unicode-emoji (4.2.0)
     uri (1.1.1)
     useragent (0.16.11)
     warning (1.5.0)
-    webrick (1.9.1)
+    webrick (1.9.2)
     websocket (1.2.11)
     websocket-driver (0.8.0)
       base64
@@ -402,10 +401,10 @@ GEM
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    yard (0.9.37)
+    yard (0.9.38)
     yard-activesupport-concern (0.0.1)
       yard (>= 0.8)
-    zeitwerk (2.7.3)
+    zeitwerk (2.7.4)
 
 PLATFORMS
   aarch64-linux-gnu
@@ -456,7 +455,7 @@ DEPENDENCIES
   yard-activesupport-concern (< 1)
 
 RUBY VERSION
-   ruby 3.4.7p58
+   ruby 4.0.0p0
 
 BUNDLED WITH
    2.6.7
diff --git a/gemfiles/rails_main.gemfile b/gemfiles/rails_main.gemfile
index be6c13594..6e74cecbc 100644
--- a/gemfiles/rails_main.gemfile
+++ b/gemfiles/rails_main.gemfile
@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-ruby "4.0.0.dev"
+ruby "4.1.0.dev"
 
 gem "rails", github: "rails/rails", branch: "main"
 gem "rack", git: "https://github.com/rack/rack", ref: "8a4475a9f416a72e5b02bd7817e4a8ed684f29b0"
diff --git a/gemfiles/rails_main.gemfile.lock b/gemfiles/rails_main.gemfile.lock
index 1534117be..aa6b1fd2b 100644
--- a/gemfiles/rails_main.gemfile.lock
+++ b/gemfiles/rails_main.gemfile.lock
@@ -109,7 +109,7 @@ GIT
 PATH
   remote: ..
   specs:
-    view_component (4.1.1)
+    view_component (4.2.0)
       actionview (>= 7.1.0)
       activesupport (>= 7.1.0)
       concurrent-ruby (~> 1)
@@ -399,7 +399,7 @@ GEM
       concurrent-ruby (~> 1.0)
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
-    unicode-emoji (4.1.0)
+    unicode-emoji (4.2.0)
     uri (1.1.1)
     useragent (0.16.11)
     warning (1.5.0)
@@ -466,7 +466,7 @@ DEPENDENCIES
   yard-activesupport-concern (< 1)
 
 RUBY VERSION
-  ruby 4.0.0.dev
+  ruby 4.1.0.dev
 
 BUNDLED WITH
-  4.0.0.dev
+  4.1.0.dev
diff --git a/test/sandbox/test/rendering_test.rb b/test/sandbox/test/rendering_test.rb
index 2a0a094fb..d8ec2a436 100644
--- a/test/sandbox/test/rendering_test.rb
+++ b/test/sandbox/test/rendering_test.rb
@@ -20,7 +20,7 @@ def test_render_inline_allocations
     MyComponent.__vc_ensure_compiled
 
     with_instrumentation_enabled_option(false) do
-      assert_allocations({"3.5" => 67, "3.4" => 72..74, "3.3" => 75, "3.2" => 78..79}) do
+      assert_allocations({"4.1" => 67, "4.0" => 67, "3.4" => 72..74, "3.3" => 75, "3.2" => 78..79}) do
         render_inline(MyComponent.new)
       end
     end
@@ -34,7 +34,7 @@ def test_render_collection_inline_allocations
     ViewComponent::CompileCache.cache.delete(ProductComponent)
     ProductComponent.__vc_ensure_compiled
 
-    allocations = {"3.5" => 66, "3.4" => 70..82, "3.3" => 89, "3.2" => 92..93}
+    allocations = {"4.1" => 66, "4.0" => 66, "3.4" => 70..82, "3.3" => 89, "3.2" => 92..93}
 
     products = [Product.new(name: "Radio clock"), Product.new(name: "Mints")]
     notice = "On sale"