diff --git a/.github/workflows/cloudflare-preview.yml b/.github/workflows/cloudflare-preview.yml
index abe3f6f843..4e1d646870 100644
--- a/.github/workflows/cloudflare-preview.yml
+++ b/.github/workflows/cloudflare-preview.yml
@@ -13,13 +13,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout PR Code
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           repository: ${{ github.event.client_payload.pr_checkout_repository }}
           ref: ${{ github.event.client_payload.pr_head_sha }}
 
       - name: Setup Ruby
-        uses: ruby/setup-ruby@80740b3b13bf9857e28854481ca95a84e78a2bdf # v1.284.0
+        uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8 # v1.286.0
         with:
           ruby-version: '3.4'
           bundler-cache: true
diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 9e622138b1..8081ed3384 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -20,9 +20,9 @@ jobs:
     if: ${{ github.repository == 'ruby/rdoc' && !startsWith(github.event_name, 'pull') }}
     steps:
       - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Setup Ruby
-        uses: ruby/setup-ruby@80740b3b13bf9857e28854481ca95a84e78a2bdf # v1.284.0
+        uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8 # v1.286.0
         with:
           ruby-version: '3.2'
           bundler-cache: true
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 24a24dbb07..f2cf703104 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -16,12 +16,12 @@ jobs:
       fail-fast: false
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
     # libyaml-dev is needed for psych, see https://github.com/ruby/setup-ruby/issues/409
     - if: ${{ matrix.os == 'ubuntu-latest' }}
       run: sudo apt install libyaml-dev
     - name: Set up Ruby
-      uses: ruby/setup-ruby@80740b3b13bf9857e28854481ca95a84e78a2bdf # v1.284.0
+      uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8 # v1.286.0
       with:
         ruby-version: 3.3
         bundler-cache: true
diff --git a/.github/workflows/push_gem.yml b/.github/workflows/push_gem.yml
index 523d7921a5..fc8f59c6a4 100644
--- a/.github/workflows/push_gem.yml
+++ b/.github/workflows/push_gem.yml
@@ -23,14 +23,14 @@ jobs:
 
     steps:
       - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
+        uses: step-security/harden-runner@e3f713f2d8f53843e71c69a996d56f51aa9adfb9 # v2.14.1
         with:
           egress-policy: audit
 
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@80740b3b13bf9857e28854481ca95a84e78a2bdf # v1.284.0
+        uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8 # v1.286.0
         with:
           bundler-cache: true
           ruby-version: ruby
diff --git a/.github/workflows/ruby-core.yml b/.github/workflows/ruby-core.yml
index bcf367e391..dbd3597acd 100644
--- a/.github/workflows/ruby-core.yml
+++ b/.github/workflows/ruby-core.yml
@@ -22,13 +22,13 @@ jobs:
     timeout-minutes: 30
     steps:
       - name: Set up latest ruby head
-        uses: ruby/setup-ruby@80740b3b13bf9857e28854481ca95a84e78a2bdf # v1.284.0
+        uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8 # v1.286.0
         with:
           ruby-version: head
           bundler: none
       - name: Save latest buildable revision to environment
         run: echo "REF=$(ruby -v | cut -d')' -f1 | cut -d' ' -f5)" >> $GITHUB_ENV
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           repository: ruby/ruby
           path: ruby/ruby
@@ -51,7 +51,7 @@ jobs:
           autoconf
           ./configure -C --disable-install-doc
         working-directory: ruby/ruby
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           path: ruby/rdoc
       - name: Build RDoc locally
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ff57c55ced..a291a7f30e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,6 +16,7 @@ jobs:
     with:
       # 2.7 breaks `test_parse_statements_nodoc_identifier_alias_method`
       min_version: 3.0
+      engine: cruby-jruby
       versions: '["mswin"]'
 
   test:
@@ -26,10 +27,6 @@ jobs:
         ruby: ${{ fromJson(needs.ruby-versions.outputs.versions) }}
         os: [ubuntu-latest, macos-latest, windows-latest]
         exclude:
-          - os: windows-latest
-            ruby: truffleruby
-          - os: windows-latest
-            ruby: truffleruby-head
           - os: windows-latest
             ruby: jruby
           - os: windows-latest
@@ -41,12 +38,12 @@ jobs:
 
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
     # libyaml-dev is needed for psych, see https://github.com/ruby/setup-ruby/issues/409
     - if: ${{ matrix.os == 'ubuntu-latest' }}
       run: sudo apt install libyaml-dev
     - name: Set up Ruby
-      uses: ruby/setup-ruby@80740b3b13bf9857e28854481ca95a84e78a2bdf # v1.284.0
+      uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8 # v1.286.0
       with:
         ruby-version: ${{ matrix.ruby }}
         bundler-cache: true # 'bundle install' and cache