diff --git a/.github/scripts/validate-csharp-package.sh b/.github/scripts/validate-csharp-package.sh
new file mode 100755
index 00000000..d255b703
--- /dev/null
+++ b/.github/scripts/validate-csharp-package.sh
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+repository_root=$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)
+solution="$repository_root/csharp/Platform.Interfaces.sln"
+test_project="$repository_root/csharp/Platform.Interfaces.Tests/Platform.Interfaces.Tests.csproj"
+package_project="$repository_root/csharp/Platform.Interfaces/Platform.Interfaces.csproj"
+package_output=$(mktemp -d)
+
+cleanup() {
+  rm -rf "$package_output"
+}
+trap cleanup EXIT
+
+dotnet restore "$solution" --nologo
+dotnet build "$solution" --configuration Release --no-restore --no-incremental --nologo -warnaserror
+dotnet test "$test_project" --configuration Release --framework net8 --no-build --no-restore --nologo
+dotnet pack "$package_project" --configuration Release --no-build --no-restore \
+  --output "$package_output" --nologo -warnaserror
+
+mapfile -t packages < <(find "$package_output" -maxdepth 1 -type f -name '*.nupkg' -print)
+mapfile -t symbol_packages < <(find "$package_output" -maxdepth 1 -type f -name '*.snupkg' -print)
+
+if [[ ${#packages[@]} -ne 1 ]]; then
+  echo "Expected one .nupkg, found ${#packages[@]}." >&2
+  exit 1
+fi
+
+if [[ ${#symbol_packages[@]} -ne 0 ]]; then
+  echo "Expected embedded symbols instead of a separate .snupkg." >&2
+  exit 1
+fi
+
+for expected_file in README.md icon.png lib/net8.0/Platform.Interfaces.dll; do
+  if ! unzip -Z1 "${packages[0]}" | grep -Fxq "$expected_file"; then
+    echo "${packages[0]} is missing $expected_file." >&2
+    exit 1
+  fi
+done
+
+echo "Validated ${packages[0]} with embedded symbols."
diff --git a/.github/workflows/AutoMerge.yml b/.github/workflows/AutoMerge.yml
index d5c5e0c3..71f387e3 100644
--- a/.github/workflows/AutoMerge.yml
+++ b/.github/workflows/AutoMerge.yml
@@ -5,9 +5,10 @@ on:
 
 jobs:
   auto-merge:
+    if: ${{ github.actor == 'dependabot[bot]' }}
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     steps:
-      - uses: actions/checkout@v2
       - uses: ahmadnassri/action-dependabot-auto-merge@v2
         with:
           target: minor
diff --git a/.github/workflows/csharp.yml b/.github/workflows/csharp.yml
index a5b414de..29f45feb 100644
--- a/.github/workflows/csharp.yml
+++ b/.github/workflows/csharp.yml
@@ -2,15 +2,26 @@ name: csharp
 
 on:
   push:
-    branches: main 
+    branches: main
     paths:
       - 'csharp/**'
+      - 'README.md'
+      - '.github/scripts/validate-csharp-package.sh'
       - '.github/workflows/csharp.yml'
+  pull_request:
+    branches: main
+    paths:
+      - 'csharp/**'
+      - 'README.md'
+      - '.github/scripts/validate-csharp-package.sh'
+      - '.github/workflows/csharp.yml'
+
+permissions:
+  contents: read
+
 env:
-  NUGETTOKEN: ${{ secrets.NUGET_TOKEN }}
-  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   SCRIPTS_BASE_URL: https://raw.githubusercontent.com/linksplatform/Scripts/main/MultiProjectRepository
-  
+
 defaults:
   run:
     working-directory: csharp
@@ -18,100 +29,113 @@ defaults:
 jobs:
   test:
     runs-on: ubuntu-latest
+    timeout-minutes: 10
     steps:
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v6
         with:
           dotnet-version: '8.0.x'
 
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v7
         with:
           submodules: true
-      - name: Test
-        run: |
-          dotnet test -c Release -f net8
+      - name: Validate tests and NuGet package
+        run: ../.github/scripts/validate-csharp-package.sh
+
   pushNuGetPackageToGitHubPackageRegistry:
     needs: test
+    if: ${{ github.event_name == 'push' }}
     runs-on: ubuntu-latest
+    timeout-minutes: 10
+    permissions:
+      contents: read
+      packages: write
     steps:
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v6
         with:
           dotnet-version: '8.0.x'
 
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v7
         with:
           submodules: true
       - name: Publish NuGet package to GitHub Package Registry
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          dotnet build -c Release
-          dotnet pack -c Release --include-symbols
-          dotnet nuget add source https://nuget.pkg.github.com/linksplatform/index.json --name GitHub --username linksplatform --password ${{ secrets.GITHUB_TOKEN }} --store-password-in-clear-text
-          dotnet nuget push **/*.nupkg --source GitHub --skip-duplicate
-  pusnToNuget:
-    runs-on: ubuntu-latest
+          package_output="$RUNNER_TEMP/github-packages"
+          dotnet pack Platform.Interfaces/Platform.Interfaces.csproj -c Release --output "$package_output" -warnaserror
+          dotnet nuget add source https://nuget.pkg.github.com/linksplatform/index.json --name GitHub --username linksplatform --password "$GITHUB_TOKEN" --store-password-in-clear-text
+          dotnet nuget push "$package_output"/*.nupkg --source GitHub --skip-duplicate
+
+  pushToNuget:
     needs: test
+    if: ${{ github.event_name == 'push' }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
     steps:
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v6
         with:
           dotnet-version: '8.0.x'
 
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v7
         with:
           submodules: true
-      - name: Read project information
-        run: |
-          export REPOSITORY_NAME=$(basename ${{ github.repository }})
-          wget "$SCRIPTS_BASE_URL/read_csharp_package_info.sh"
-          bash ./read_csharp_package_info.sh
       - name: Publish NuGet package
+        env:
+          NUGETTOKEN: ${{ secrets.NUGET_TOKEN }}
         run: |
-          export REPOSITORY_NAME=$(basename ${{ github.repository }})
-          wget "$SCRIPTS_BASE_URL/push-csharp-nuget.sh"
-          bash ./push-csharp-nuget.sh
-  publiseRelease:
+          package_output="$RUNNER_TEMP/nuget-packages"
+          dotnet pack Platform.Interfaces/Platform.Interfaces.csproj -c Release --output "$package_output" -warnaserror
+          dotnet nuget push "$package_output"/*.nupkg --source https://api.nuget.org/v3/index.json --api-key "$NUGETTOKEN" --skip-duplicate
+
+  publishRelease:
+    needs: [pushNuGetPackageToGitHubPackageRegistry, pushToNuget]
+    if: ${{ github.event_name == 'push' }}
     runs-on: ubuntu-latest
-    needs: test
+    timeout-minutes: 10
+    permissions:
+      contents: write
     steps:
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v6
         with:
           dotnet-version: '8.0.x'
 
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v7
         with:
           submodules: true
       - name: Read project information
-        if: ${{ github.event_name == 'push' }}
         run: |
           export REPOSITORY_NAME=$(basename ${{ github.repository }})
           wget "$SCRIPTS_BASE_URL/read_csharp_package_info.sh"
           bash ./read_csharp_package_info.sh
       - name: Publish release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           export REPOSITORY_NAME=$(basename ${{ github.repository }})
+          export CSHARP_PACKAGE_VERSION="$(<CSHARP_PACKAGE_VERSION.txt)"
           wget "$SCRIPTS_BASE_URL/publish-release.sh"
           chmod +x ./publish-release.sh
           wget "$SCRIPTS_BASE_URL/publish-csharp-release.sh"
           bash ./publish-csharp-release.sh
+
   findChangedCsFiles:
-    runs-on: ubuntu-latest
     needs: test
+    if: ${{ github.event_name == 'push' }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
     outputs:
       isCsFilesChanged: ${{ steps.setIsCsFilesChangedOutput.outputs.isCsFilesChanged }}
     steps:
-      - name: Setup .NET
-        uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: '8.0.x'
-
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - name: Get changed files using defaults
         id: changed-files
-        uses: tj-actions/changed-files@v46
+        uses: tj-actions/changed-files@v47
       - name: Set output isCsFilesChanged
         id: setIsCsFilesChangedOutput
         run: |
@@ -124,19 +148,21 @@ jobs:
               isCsFilesChanged='true'
             fi
           done
-          echo "::set-output name=isCsFilesChanged::${isCsFilesChanged}"
+          echo "isCsFilesChanged=${isCsFilesChanged}" >> "$GITHUB_OUTPUT"
           echo "isCsFilesChanged: ${isCsFilesChanged}"
+
   generatePdfWithCode:
-    runs-on: ubuntu-latest
     needs: [findChangedCsFiles]
-    if: ${{ needs.findChangedCsFiles.outputs.isCsFilesChanged == 'true' }}
+    if: ${{ github.event_name == 'push' && needs.findChangedCsFiles.outputs.isCsFilesChanged == 'true' }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
     steps:
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v6
         with:
           dotnet-version: '8.0.x'
 
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v7
         with:
           submodules: true
       - name: Generate PDF with code
@@ -146,20 +172,26 @@ jobs:
           wget "$SCRIPTS_BASE_URL/format-csharp-document.sh"
           wget "$SCRIPTS_BASE_URL/generate-csharp-pdf.sh"
           bash ./generate-csharp-pdf.sh
+
   publishDocumentation:
-    runs-on: ubuntu-latest
     needs: [findChangedCsFiles]
-    if: ${{ needs.findChangedCsFiles.outputs.isCsFilesChanged == 'true' }}
+    if: ${{ github.event_name == 'push' && needs.findChangedCsFiles.outputs.isCsFilesChanged == 'true' }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    permissions:
+      contents: write
     steps:
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v6
         with:
           dotnet-version: '8.0.x'
 
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v7
         with:
           submodules: true
       - name: Publish documentation to gh-pages branch
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           export REPOSITORY_NAME=$(basename ${{ github.repository }})
           wget "$SCRIPTS_BASE_URL/docfx.json"
diff --git a/.github/workflows/readme-badges.yml b/.github/workflows/readme-badges.yml
index 250c511b..df4664d0 100644
--- a/.github/workflows/readme-badges.yml
+++ b/.github/workflows/readme-badges.yml
@@ -20,10 +20,10 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v7
+      - uses: actions/setup-node@v7
         with:
-          node-version: '20'
+          node-version: '24'
       - name: Test the badge check
         run: node --test .github/scripts/check-readme-badges.test.mjs
       - name: Check that README badges reference existing workflows
diff --git a/csharp/Platform.Interfaces.Tests/InterfacesTests.cs b/csharp/Platform.Interfaces.Tests/InterfacesTests.cs
index ecd9b4d1..212f4af2 100644
--- a/csharp/Platform.Interfaces.Tests/InterfacesTests.cs
+++ b/csharp/Platform.Interfaces.Tests/InterfacesTests.cs
@@ -1,7 +1,6 @@
-using Xunit;
-
-#pragma warning disable CS0168 // Variable is declared but never used
-#pragma warning disable CS0219 // Variable is assigned but its value is never used
+using System.IO;
+using System.Reflection.PortableExecutable;
+using Xunit;
 
 namespace Platform.Interfaces.Tests
 {
@@ -10,16 +9,38 @@ public static class InterfacesTests
         [Fact]
         public static void BuildTest()
         {
-            ICounter<int, int> c1 = null;
-            ICounter<int> c2 = null;
-            ICriterionMatcher<int> cm1 = null;
-            IFactory<int> f1 = null;
-            IProperties<int, int, int> p1 = null;
-            IProperty<int, int> p2 = null;
-            IProvider<int, int> p3 = null;
-            IProvider<int> p4 = null;
-            ISetter<int, int> s1 = null;
-            ISetter<int> s2 = null;
+            ICounter<int, int>? c1 = null;
+            ICounter<int>? c2 = null;
+            ICriterionMatcher<int>? cm1 = null;
+            IFactory<int>? f1 = null;
+            IProperties<int, int, int>? p1 = null;
+            IProperty<int, int>? p2 = null;
+            IProvider<int, int>? p3 = null;
+            IProvider<int>? p4 = null;
+            ISetter<int, int>? s1 = null;
+            ISetter<int>? s2 = null;
+
+            Assert.Null(c1);
+            Assert.Null(c2);
+            Assert.Null(cm1);
+            Assert.Null(f1);
+            Assert.Null(p1);
+            Assert.Null(p2);
+            Assert.Null(p3);
+            Assert.Null(p4);
+            Assert.Null(s1);
+            Assert.Null(s2);
+        }
+
+        [Fact]
+        public static void AssemblyContainsEmbeddedPortablePdb()
+        {
+            using var assembly = File.OpenRead(typeof(ICounter<>).Assembly.Location);
+            using var peReader = new PEReader(assembly);
+
+            Assert.Contains(
+                peReader.ReadDebugDirectory(),
+                entry => entry.Type == DebugDirectoryEntryType.EmbeddedPortablePdb);
         }
     }
 }
diff --git a/csharp/Platform.Interfaces/Platform.Interfaces.csproj b/csharp/Platform.Interfaces/Platform.Interfaces.csproj
index e4208009..375a9b54 100644
--- a/csharp/Platform.Interfaces/Platform.Interfaces.csproj
+++ b/csharp/Platform.Interfaces/Platform.Interfaces.csproj
@@ -4,13 +4,14 @@
     <Description>LinksPlatform's Platform.Interfaces Class Library</Description>
     <Copyright>Konstantin Diachenko</Copyright>
     <AssemblyTitle>Platform.Interfaces</AssemblyTitle>
-    <VersionPrefix>0.5.1</VersionPrefix>
+    <VersionPrefix>0.5.2</VersionPrefix>
     <Authors>Konstantin Diachenko</Authors>
     <TargetFramework>net8</TargetFramework>
     <AssemblyName>Platform.Interfaces</AssemblyName>
     <PackageId>Platform.Interfaces</PackageId>
     <PackageTags>LinksPlatform;Interfaces;ICounter;ICriterionMatcher;IFactory;IProperties;IProperty;IProvider;ISetter</PackageTags>
-    <PackageIconUrl>https://raw.githubusercontent.com/linksplatform/Documentation/18469f4d033ee9a5b7b84caab9c585acab2ac519/doc/Avatar-rainbow-icon-64x64.png</PackageIconUrl>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
+    <PackageIcon>icon.png</PackageIcon>
     <PackageProjectUrl>https://linksplatform.github.io/Interfaces</PackageProjectUrl>
     <PackageLicenseExpression>Unlicense</PackageLicenseExpression>
     <RepositoryType>git</RepositoryType>
@@ -20,11 +21,9 @@
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
     <EmbedUntrackedSources>true</EmbedUntrackedSources>
-    <IncludeSymbols>true</IncludeSymbols>
-    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
     <DebugType>embedded</DebugType>
     <LangVersion>latest</LangVersion>
-    <PackageReleaseNotes>Add embedded symbols support for GitHub Package Registry debugging.</PackageReleaseNotes>
+    <PackageReleaseNotes>Fix package publishing while preserving embedded symbols, eliminate C# workflow warnings, and validate NuGet artifacts before release.</PackageReleaseNotes>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
@@ -36,4 +35,9 @@
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
   </ItemGroup>
 
+  <ItemGroup>
+    <None Include="../../README.md" Pack="true" PackagePath="\" />
+    <None Include="icon.png" Pack="true" PackagePath="\" />
+  </ItemGroup>
+
 </Project>
diff --git a/csharp/Platform.Interfaces/icon.png b/csharp/Platform.Interfaces/icon.png
new file mode 100644
index 00000000..c1ad0cac
Binary files /dev/null and b/csharp/Platform.Interfaces/icon.png differ