diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 66ee45a2..9c17e7b0 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Go
         uses: actions/setup-go@v5
diff --git a/.github/workflows/comprehensive-quality.yml b/.github/workflows/comprehensive-quality.yml
index fb4b3048..55ebd392 100644
--- a/.github/workflows/comprehensive-quality.yml
+++ b/.github/workflows/comprehensive-quality.yml
@@ -21,7 +21,7 @@ jobs:
     name: Code Quality Checks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Set up Go
         uses: actions/setup-go@v5
@@ -73,7 +73,7 @@ jobs:
     permissions:
       security-events: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Run Gosec Security Scanner
         uses: securego/gosec@master
@@ -116,7 +116,7 @@ jobs:
     name: Test Coverage Analysis
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Set up Go
         uses: actions/setup-go@v5
@@ -208,7 +208,7 @@ jobs:
           --health-retries 5
     
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Set up Go
         uses: actions/setup-go@v5
@@ -236,7 +236,7 @@ jobs:
             goarch: arm64
     
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Set up Go
         uses: actions/setup-go@v5
@@ -271,7 +271,7 @@ jobs:
     name: Documentation Quality
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Check markdown links
         uses: gaurav-nelson/github-action-markdown-link-check@v1
@@ -309,7 +309,7 @@ jobs:
     needs: [build, integration-tests, documentation]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Check CHANGELOG
         run: |
diff --git a/.github/workflows/comprehensive-testing.yml b/.github/workflows/comprehensive-testing.yml
index c209d1b4..69265eb0 100644
--- a/.github/workflows/comprehensive-testing.yml
+++ b/.github/workflows/comprehensive-testing.yml
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     
     - name: Set up Go
       uses: actions/setup-go@v4
@@ -86,7 +86,7 @@ jobs:
       matrix:
         focus: [crypto, security, input-validation, template-injection]
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     
     - name: Set up Go
       uses: actions/setup-go@v4
@@ -139,7 +139,7 @@ jobs:
     timeout-minutes: 45
     needs: quick-validation
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     
     - name: Set up Go
       uses: actions/setup-go@v4
@@ -178,7 +178,7 @@ jobs:
     needs: [security-fuzzing, architecture-testing]
     if: ${{ github.event.inputs.enable_chaos == 'true' || github.event_name == 'schedule' }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     
     - name: Set up Go
       uses: actions/setup-go@v4
@@ -214,7 +214,7 @@ jobs:
     timeout-minutes: 30
     needs: quick-validation
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     
     - name: Set up Go
       uses: actions/setup-go@v4
@@ -242,7 +242,7 @@ jobs:
     timeout-minutes: 20
     needs: quick-validation
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     
     - name: Set up Go
       uses: actions/setup-go@v4
@@ -276,7 +276,7 @@ jobs:
     timeout-minutes: 25
     needs: quick-validation
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     
     - name: Set up Go
       uses: actions/setup-go@v4
@@ -322,7 +322,7 @@ jobs:
           --health-timeout 5s
           --health-retries 5
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     
     - name: Set up Go
       uses: actions/setup-go@v4
@@ -418,7 +418,7 @@ jobs:
     timeout-minutes: 480 # 8 hours
     if: github.event_name == 'schedule'
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     
     - name: Set up Go
       uses: actions/setup-go@v4
diff --git a/.github/workflows/coverage-enforcement.yml b/.github/workflows/coverage-enforcement.yml
index b1d1e0f6..aca0d803 100644
--- a/.github/workflows/coverage-enforcement.yml
+++ b/.github/workflows/coverage-enforcement.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     
     - name: Set up Go
       uses: actions/setup-go@v5
diff --git a/.github/workflows/emoji-check.yml b/.github/workflows/emoji-check.yml
index 006e25c3..b0ff3ea9 100644
--- a/.github/workflows/emoji-check.yml
+++ b/.github/workflows/emoji-check.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/flakiness-detection.yml b/.github/workflows/flakiness-detection.yml
index 19033b6b..af9278f7 100644
--- a/.github/workflows/flakiness-detection.yml
+++ b/.github/workflows/flakiness-detection.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 2  # Need previous commit for diff
 
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index f69e9138..6182e1bf 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -10,7 +10,7 @@ jobs:
   fuzz:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version: 1.25 # Match your current Go version
diff --git a/.github/workflows/generator-generic-ossf-slsa3-publish.yml b/.github/workflows/generator-generic-ossf-slsa3-publish.yml
index 994c29b9..bfb56b7b 100644
--- a/.github/workflows/generator-generic-ossf-slsa3-publish.yml
+++ b/.github/workflows/generator-generic-ossf-slsa3-publish.yml
@@ -23,7 +23,7 @@ jobs:
       digests: ${{ steps.hash.outputs.digests }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       # ========================================================
       #
diff --git a/.github/workflows/label-simple.yml b/.github/workflows/label-simple.yml
index 3ab72a95..5d658594 100644
--- a/.github/workflows/label-simple.yml
+++ b/.github/workflows/label-simple.yml
@@ -13,7 +13,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index faa8c409..2b610c71 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Go
         uses: actions/setup-go@v5
diff --git a/.github/workflows/quality-gates.yml b/.github/workflows/quality-gates.yml
index fdf7374b..264f6fd5 100644
--- a/.github/workflows/quality-gates.yml
+++ b/.github/workflows/quality-gates.yml
@@ -9,7 +9,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Go
         uses: actions/setup-go@v5
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 8a92c98b..dfa51055 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -90,7 +90,7 @@ jobs:
     name: Secret Scanning
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: trufflesecurity/trufflehog@main
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0c8fbaa9..b1e2d3d3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Go
         uses: actions/setup-go@v5
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index ee027fbc..fe583c20 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -10,7 +10,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Validate YAML syntax
         run: |