Toolset update: MSVC Compiler 19.52.36510

.github/workflows/update-status-chart.yml

@@ -14,13 +14,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout gh-pages
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           ref: gh-pages
       - name: Setup Node.js
         uses: actions/setup-node@v6
         with:
-          node-version: ">=25.2.1"
+          node-version: ">=26.4.0"
       - name: Install Packages
         run: |
           npm ci

CMakeLists.txt

@@ -6,8 +6,8 @@ cmake_minimum_required(VERSION 4.3.1)
 set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
 project(msvc_standard_libraries LANGUAGES CXX)
 
-if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "19.52.36405.1")
-    message(FATAL_ERROR "The STL must be built with MSVC Compiler 19.52.36405.1 or later. Follow the README instructions.")
+if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "19.52.36510")
+    message(FATAL_ERROR "The STL must be built with MSVC Compiler 19.52.36510 or later. Follow the README instructions.")
 endif()
 
 include(CheckCXXSourceCompiles)
@@ -94,10 +94,7 @@ if(STL_USE_ANALYZE)
     # TRANSITION, Windows SDK 10.0.28000 emits multiple warnings:
     # "warning C6553: The annotation for function 'LCMapStringEx' on _Param_(9) does not apply to a value type."
     # Reported as OS-40109504 "Windows SDK: incorrect SAL annotations on functions the STL uses".
-    # "warning C28285: For function '_BitScanForward' '_Param_(1)' syntax error in 'SAL_range(0,(sizeof(Mask)*8)-1)' near 'Mask)*8'."
-    # Reported as VSO-2946529 "/analyze emits warning C28285 for _BitScanForward declared by winnt.h".
-    # Fixed by OS-PR-14602802 on 2026-01-22.
-    add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:/analyze:autolog-;/wd6553;/wd28285>")
+    add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:/analyze:autolog-;/wd6553>")
 
     if(VCLIBS_TARGET_ARCHITECTURE STREQUAL "arm64ec")
         # TRANSITION, Windows SDK 10.0.28000 emits

README.md

@@ -151,7 +151,7 @@ Just try to follow these rules, so we can spend more time fixing bugs and implem
     - "Windows 11 SDK (10.0.28000)" or later
     - "C++ Clang tools for Windows (22.1.3 - x64/x86)"
     - *Optional, see Note 2 below:* "MSVC Build Tools for ARM64/ARM64EC (Preview)"
-* Install [Python][] 3.14.5 or later.
+* Install [Python][] 3.14.6 or later.
   + Select "Add python.exe to PATH" if you want to follow the instructions below that invoke `python`.
     Otherwise, you should be familiar with alternative methods.
 

azure-devops/config.yml

@@ -5,13 +5,13 @@
 
 variables:
 - name: x64SlowPoolName
-  value: 'Stl-2026-05-21T0342-x64-Fasv6-Pool'
+  value: 'Stl-2026-06-25T1103-x64-Fasv6-Pool'
   readonly: true
 - name: x64FastPoolName
-  value: 'Stl-2026-05-21T0342-x64-Fasv7-Pool'
+  value: 'Stl-2026-06-25T1103-x64-Fasv7-Pool'
   readonly: true
 - name: arm64PoolName
-  value: 'Stl-2026-05-21T0342-arm64-Dpsv6-Pool'
+  value: 'Stl-2026-06-25T1103-arm64-Dpsv6-Pool'
   readonly: true
 - name: poolDemands
   value: 'EnableSpotVM -equals false'

azure-devops/create-1es-hosted-pool.ps1

@@ -49,7 +49,7 @@ if ($VMSku -ieq 'Fasv6') {
   $AvailableLocations = @('eastus2', 'northeurope', 'uksouth')
 }
 
-$AvailableLocationIdx = 9 # Increment for each new set of pools, to cycle through the available locations.
+$AvailableLocationIdx = 10 # Increment for each new set of pools, to cycle through the available locations.
 $Location = $AvailableLocations[$AvailableLocationIdx % $AvailableLocations.Length]
 
 if ($Arch -ieq 'x64') {

azure-devops/provision-image.ps1

@@ -58,23 +58,23 @@ foreach ($workload in $VisualStudioWorkloads) {
 
 # https://github.com/PowerShell/PowerShell/releases/latest
 if ($Provisioning_x64) {
-  $PowerShellUrl = 'https://github.com/PowerShell/PowerShell/releases/download/v7.6.1/PowerShell-7.6.1-win-x64.msi'
+  $PowerShellUrl = 'https://github.com/PowerShell/PowerShell/releases/download/v7.6.3/PowerShell-7.6.3-win-x64.msi'
 } else {
-  $PowerShellUrl = 'https://github.com/PowerShell/PowerShell/releases/download/v7.6.1/PowerShell-7.6.1-win-arm64.msi'
+  $PowerShellUrl = 'https://github.com/PowerShell/PowerShell/releases/download/v7.6.3/PowerShell-7.6.3-win-arm64.msi'
 }
 $PowerShellArgs = @('/quiet', '/norestart')
 
 # https://www.python.org
 if ($Provisioning_x64) {
-  $PythonUrl = 'https://www.python.org/ftp/python/3.14.5/python-3.14.5-amd64.exe'
+  $PythonUrl = 'https://www.python.org/ftp/python/3.14.6/python-3.14.6-amd64.exe'
 } else {
-  $PythonUrl = 'https://www.python.org/ftp/python/3.14.5/python-3.14.5-arm64.exe'
+  $PythonUrl = 'https://www.python.org/ftp/python/3.14.6/python-3.14.6-arm64.exe'
 }
 $PythonArgs = @('/quiet', 'InstallAllUsers=1', 'PrependPath=1', 'CompileAll=1', 'Include_doc=0')
 
 # https://developer.nvidia.com/cuda-toolkit
 if ($Provisioning_x64) {
-  $CudaUrl = 'https://developer.download.nvidia.com/compute/cuda/13.2.1/local_installers/cuda_13.2.1_windows.exe'
+  $CudaUrl = 'https://developer.download.nvidia.com/compute/cuda/13.3.0/local_installers/cuda_13.3.0_windows.exe'
 } else {
   $CudaUrl = 'CUDA is not installed for ARM64'
 }

stl/inc/memory

@@ -3482,11 +3482,9 @@ public:
     template <class _Ptr = pointer, enable_if_t<_Can_dereference<_Ptr>, int> = 0>
     _NODISCARD _CONSTEXPR23 add_lvalue_reference_t<_Ty> operator*() const noexcept(noexcept(*_STD declval<pointer>())) {
 #if _HAS_CXX23
-#ifdef __cpp_lib_reference_from_temporary // TRANSITION
         static_assert(
             !reference_converts_from_temporary_v<add_lvalue_reference_t<_Ty>, decltype(*_STD declval<pointer>())>,
             "Can't return a temporary object from unique_ptr::operator*(). (N5014 [unique.ptr.single.observers]/1)");
-#endif // ^^^ no workaround ^^^
 #endif // _HAS_CXX23
         return *_Mypair._Myval2;
     }
@@ -4536,36 +4534,28 @@ _NODISCARD auto inout_ptr(_SmartPtr& _Smart_ptr, _ArgsT&&... _Args) {
     }
 }
 
-#ifdef __cpp_lib_start_lifetime_as // TRANSITION
+#ifdef __cpp_lib_start_lifetime_as // TRANSITION, GH-6169
 _EXPORT_STD template <class _Ty>
 _Ty* start_lifetime_as(void* const _Ptr) noexcept {
-#ifdef __cpp_lib_is_implicit_lifetime // TRANSITION, toolset update
     static_assert(is_implicit_lifetime_v<_Ty>, "T must be an implicit-lifetime type. (N5032 [obj.lifetime]/1)");
-#endif // ^^^ no workaround ^^^
     static_assert(sizeof(_Ty) > 0, "T must be a complete type. (N5032 [obj.lifetime]/1)");
     return __builtin_start_lifetime_as<_Ty>(_Ptr);
 }
 _EXPORT_STD template <class _Ty>
 const _Ty* start_lifetime_as(const void* const _Ptr) noexcept {
-#ifdef __cpp_lib_is_implicit_lifetime // TRANSITION, toolset update
     static_assert(is_implicit_lifetime_v<_Ty>, "T must be an implicit-lifetime type. (N5032 [obj.lifetime]/1)");
-#endif // ^^^ no workaround ^^^
     static_assert(sizeof(_Ty) > 0, "T must be a complete type. (N5032 [obj.lifetime]/1)");
     return __builtin_start_lifetime_as<_Ty>(_Ptr);
 }
 _EXPORT_STD template <class _Ty>
 volatile _Ty* start_lifetime_as(volatile void* const _Ptr) noexcept {
-#ifdef __cpp_lib_is_implicit_lifetime // TRANSITION, toolset update
     static_assert(is_implicit_lifetime_v<_Ty>, "T must be an implicit-lifetime type. (N5032 [obj.lifetime]/1)");
-#endif // ^^^ no workaround ^^^
     static_assert(sizeof(_Ty) > 0, "T must be a complete type. (N5032 [obj.lifetime]/1)");
     return __builtin_start_lifetime_as<_Ty>(_Ptr);
 }
 _EXPORT_STD template <class _Ty>
 const volatile _Ty* start_lifetime_as(const volatile void* const _Ptr) noexcept {
-#ifdef __cpp_lib_is_implicit_lifetime // TRANSITION, toolset update
     static_assert(is_implicit_lifetime_v<_Ty>, "T must be an implicit-lifetime type. (N5032 [obj.lifetime]/1)");
-#endif // ^^^ no workaround ^^^
     static_assert(sizeof(_Ty) > 0, "T must be a complete type. (N5032 [obj.lifetime]/1)");
     return __builtin_start_lifetime_as<_Ty>(_Ptr);
 }