diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 7ae255a..facad93 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -20,15 +20,15 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 10.0.x
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@v4
         with:
           languages: csharp
           build-mode: manual
@@ -39,6 +39,6 @@ jobs:
           dotnet build Codout.Framework.sln --no-restore --configuration Release
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@v4
         with:
           category: "/language:csharp"
diff --git a/.github/workflows/core-release.yml b/.github/workflows/core-release.yml
index f6c0c9e..81f87c6 100644
--- a/.github/workflows/core-release.yml
+++ b/.github/workflows/core-release.yml
@@ -49,10 +49,10 @@ jobs:
       contents: read
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 10.0.x
 
@@ -98,7 +98,7 @@ jobs:
         run: ls -la ./artifacts
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: codout-framework-core-nupkg
           path: |
@@ -115,12 +115,12 @@ jobs:
       contents: read
     steps:
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 10.0.x
 
       - name: Download artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: codout-framework-core-nupkg
           path: ./artifacts
diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index 2f37c5f..48cc1d2 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -18,9 +18,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@v5
       with:
         dotnet-version: 10.0.x
     - name: Restore dependencies
@@ -50,7 +50,7 @@ jobs:
         sys.exit(0 if pct >= THRESHOLD else 1)
         EOF
     - name: Upload coverage
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       if: always()
       with:
         name: coverage
diff --git a/.github/workflows/mass-release.yml b/.github/workflows/mass-release.yml
index 5f73f79..9d7e177 100644
--- a/.github/workflows/mass-release.yml
+++ b/.github/workflows/mass-release.yml
@@ -62,12 +62,12 @@ jobs:
           echo "Confirm input OK."
 
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 10.0.x
 
@@ -135,7 +135,7 @@ jobs:
           ls -la ./artifacts
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: codout-framework-all-nupkg
           path: |
diff --git a/.github/workflows/mcp-ci.yml b/.github/workflows/mcp-ci.yml
index c826275..c31a545 100644
--- a/.github/workflows/mcp-ci.yml
+++ b/.github/workflows/mcp-ci.yml
@@ -24,10 +24,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 10.0.x
 
diff --git a/.github/workflows/mcp-release.yml b/.github/workflows/mcp-release.yml
index ffba866..a6d4059 100644
--- a/.github/workflows/mcp-release.yml
+++ b/.github/workflows/mcp-release.yml
@@ -25,10 +25,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 10.0.x
 
@@ -84,7 +84,7 @@ jobs:
           fi
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: codout-framework-mcp-nupkg
           path: ./artifacts/*.nupkg
@@ -99,12 +99,12 @@ jobs:
 
     steps:
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 10.0.x
 
       - name: Download artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: codout-framework-mcp-nupkg
           path: ./artifacts
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 63b9f8d..6d15473 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -44,13 +44,13 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           # Full history so the master-ancestry gate can resolve merge-base.
           fetch-depth: 0
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 10.0.x
 
@@ -144,7 +144,7 @@ jobs:
           ls -la ./artifacts
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: ${{ steps.resolve.outputs.package }}-nupkg
           path: |
@@ -163,12 +163,12 @@ jobs:
 
     steps:
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 10.0.x
 
       - name: Download artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: ${{ needs.build-pack.outputs.package }}-nupkg
           path: ./artifacts