build: update vcpkg to 2026.10.16

.github/actions/setup-vcpkg/action.yml

@@ -0,0 +1,17 @@
+name: Set up vcpkg
+description: Check out and bootstrap the vcpkg revision pinned by the build.
+
+runs:
+  using: composite
+  steps:
+    - name: Set up pinned vcpkg
+      shell: pwsh
+      run: |
+        $baseline = (Get-Content -Raw "$env:GITHUB_WORKSPACE/vcpkg-configuration.json" | ConvertFrom-Json).'default-registry'.baseline
+        git -C "$env:VCPKG_INSTALLATION_ROOT" fetch --depth=1 origin $baseline
+        if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+        git -C "$env:VCPKG_INSTALLATION_ROOT" checkout --detach $baseline
+        if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+        & "$env:VCPKG_INSTALLATION_ROOT/bootstrap-vcpkg.bat" -disableMetrics
+        if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+        "$env:VCPKG_INSTALLATION_ROOT" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append

.github/workflows/python-wheels.yml

@@ -45,6 +45,9 @@ jobs:
     steps:
       - uses: actions/checkout@v7
 
+      - name: Set up vcpkg
+        uses: ./.github/actions/setup-vcpkg
+
       - name: Cache vcpkg installed packages
         id: cache-vcpkg
         uses: actions/cache@v6

.github/workflows/release-package.yml

@@ -322,6 +322,9 @@ jobs:
         with:
           submodules: recursive
 
+      - name: Set up vcpkg
+        uses: ./.github/actions/setup-vcpkg
+
       - name: Set up MSVC developer environment
         uses: microsoft/setup-msbuild@v3
       
@@ -428,6 +431,9 @@ jobs:
         with:
           submodules: recursive
 
+      - name: Set up vcpkg
+        uses: ./.github/actions/setup-vcpkg
+
       - name: Set up MSVC developer environment
         uses: microsoft/setup-msbuild@v3
 

.github/workflows/windows-build.yml

@@ -28,6 +28,9 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v7
 
+      - name: Set up vcpkg
+        uses: ./.github/actions/setup-vcpkg
+
       - name: Set up MSVC
         uses: microsoft/setup-msbuild@v3
 
@@ -76,6 +79,9 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v7
 
+      - name: Set up vcpkg
+        uses: ./.github/actions/setup-vcpkg
+
       - name: Set up MSVC
         uses: microsoft/setup-msbuild@v3
 
@@ -126,6 +132,9 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v7
 
+      - name: Set up vcpkg
+        uses: ./.github/actions/setup-vcpkg
+
       - name: Set up MSVC
         uses: microsoft/setup-msbuild@v3
 
@@ -203,6 +212,9 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v7
 
+      - name: Set up vcpkg
+        uses: ./.github/actions/setup-vcpkg
+
       - name: Set up MSVC
         uses: microsoft/setup-msbuild@v3
 

BUILD.md

@@ -121,10 +121,12 @@ Building on Windows with MSVC is supported with VCPKG and CMake.
 
 ### Build with VCPKG in manifest mode
 
-1. Install [VCPKG](https://github.com/microsoft/vcpkg) and required dependencies:
+1. Install [VCPKG](https://github.com/microsoft/vcpkg) 2026.10.16 and required dependencies:
 ```ps1
 git clone https://github.com/microsoft/vcpkg.git
-cd vcpkg; .\bootstrap-vcpkg.bat
+cd vcpkg
+git checkout 9eec002df1cd109f8f104cd966a763daf9751489
+.\bootstrap-vcpkg.bat
 ```
 
 2. Use CMake preset for vcpkg:

vcpkg-configuration.json

@@ -1,7 +1,7 @@
 {
   "default-registry": {
     "kind": "git",
-    "baseline": "319504a5326aa870edde46438c5455fa76305a56",
+    "baseline": "9eec002df1cd109f8f104cd966a763daf9751489",
     "repository": "https://github.com/microsoft/vcpkg"
   },
   "overlay-ports": [