From 08fdc1b3f94e144a30a71463ccf2c961d2328fcf Mon Sep 17 00:00:00 2001
From: nihui <shuizhuyuanluo@126.com>
Date: Tue, 20 Oct 2026 13:07:36 +0800
Subject: [PATCH 1/4] Add Ubuntu 26.04, VS2026 and WebAssembly64 release
 packages

---
 .github/workflows/release.yml            | 93 +++++++++++++++++-------
 README.md                                | 49 +++++++++++--
 patches/opencv-2.4.13.7-newer-msvc.patch |  8 +-
 patches/opencv-3.4.20-newer-msvc.patch   | 30 +++++++-
 test/CMakeLists.txt                      |  5 ++
 test/main.cpp                            |  4 +
 6 files changed, 155 insertions(+), 34 deletions(-)

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 01fb5071..88538c48 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,6 +1,12 @@
 name: release
-#on: pull_request
 on:
+  pull_request:
+    paths:
+      - ".github/workflows/release.yml"
+      - "patches/**"
+      - "highgui/**"
+      - "test/**"
+      - "opencv*_cmake_options.txt"
   push:
     tags:
       - '*'
@@ -16,7 +22,7 @@ env:
   ENABLE_BITCODE: OFF
   ENABLE_ARC: OFF
   ENABLE_VISIBILITY: OFF
-  EMSCRIPTEN_VERSION: 3.1.28
+  EMSCRIPTEN_VERSION: 6.0.12
 
 permissions:
   contents: read
@@ -355,6 +361,7 @@ jobs:
         path: opencv-mobile-5.0.0.zip
 
   android:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: ubuntu-latest
     strategy:
@@ -458,6 +465,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   harmonyos:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: ubuntu-latest
     strategy:
@@ -557,6 +565,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   ios:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -645,6 +654,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   ios-simulator:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -743,6 +753,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   armlinux:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: ubuntu-latest
     strategy:
@@ -841,6 +852,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   macos:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -943,6 +955,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   mac-catalyst:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1041,6 +1054,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   watchos:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1126,6 +1140,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   watchos-simulator:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1224,6 +1239,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   tvos:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1328,6 +1344,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   tvos-simulator:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1426,6 +1443,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   visionos:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1514,6 +1532,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   visionos-simulator:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1623,6 +1642,7 @@ jobs:
           - { msvc-version: vs2017, windows-version: 2022, toolset-version: v141, windows-sdk-version: 22621 }
           - { msvc-version: vs2019, windows-version: 2022, toolset-version: v142, windows-sdk-version: 22621 }
           - { msvc-version: vs2022, windows-version: 2022, toolset-version: v143, windows-sdk-version: 26100 }
+          - { msvc-version: vs2026, windows-version: 2025-vs2026, toolset-version: v145, windows-sdk-version: 26100 }
         include:
           - opencv-version: 5.0.0
             os-compiler:
@@ -1636,10 +1656,16 @@ jobs:
               windows-version: 2022
               toolset-version: v143
               windows-sdk-version: 26100
+          - opencv-version: 5.0.0
+            os-compiler:
+              msvc-version: vs2026
+              windows-version: 2025-vs2026
+              toolset-version: v145
+              windows-sdk-version: 26100
     runs-on: windows-${{ matrix.os-compiler.windows-version }}
     env:
       UseMultiToolTask: true
-      COMMON_CMAKE_OPTIONS: -T ${{ matrix.os-compiler.toolset-version }},host=x64 -DCMAKE_INSTALL_PREFIX=install
+      COMMON_CMAKE_OPTIONS: -G "${{ matrix.os-compiler.msvc-version == 'vs2026' && 'Visual Studio 18 2026' || 'Visual Studio 17 2022' }}" -T ${{ matrix.os-compiler.toolset-version }},host=x64 -DCMAKE_POLICY_VERSION_MINIMUM=3.5 -DCMAKE_INSTALL_PREFIX=install
     steps:
     - uses: actions/checkout@v7
     - uses: actions/download-artifact@v8
@@ -1690,7 +1716,7 @@ jobs:
         cmake --build . --config Release -j 4
         cmake --build . --config Release --target install
     - name: build-arm64
-      if: matrix.os-compiler.msvc-version == 'vs2019' || matrix.os-compiler.msvc-version == 'vs2022'
+      if: matrix.os-compiler.msvc-version == 'vs2019' || matrix.os-compiler.msvc-version == 'vs2022' || matrix.os-compiler.msvc-version == 'vs2026'
       run: |
         cd ${{ env.SOURCE_DIR }}
         mkdir build-arm64; cd build-arm64
@@ -1707,7 +1733,7 @@ jobs:
         Copy-Item -Verbose -Recurse -Path "${{ env.SOURCE_DIR }}\build-x64\install\*" -Destination "${{ env.PACKAGE_NAME }}\x64"
         7z a -r ${{ env.PACKAGE_NAME }}.zip ${{ env.PACKAGE_NAME }}
     - name: package
-      if: matrix.os-compiler.msvc-version == 'vs2019' || matrix.os-compiler.msvc-version == 'vs2022'
+      if: matrix.os-compiler.msvc-version == 'vs2019' || matrix.os-compiler.msvc-version == 'vs2022' || matrix.os-compiler.msvc-version == 'vs2026'
       run: |
         mkdir ${{ env.PACKAGE_NAME }}
         mkdir ${{ env.PACKAGE_NAME }}/x86
@@ -1730,7 +1756,7 @@ jobs:
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} -A x64,version=10.0.${{ matrix.os-compiler.windows-sdk-version }}.0 -DOpenCV_DIR="$env:GITHUB_WORKSPACE\${{ env.PACKAGE_NAME }}\x64" -DOpenCV_STATIC=ON ..
         cmake --build . --config Release -j 4
     - name: test-arm64
-      if: matrix.os-compiler.msvc-version == 'vs2019' || matrix.os-compiler.msvc-version == 'vs2022'
+      if: matrix.os-compiler.msvc-version == 'vs2019' || matrix.os-compiler.msvc-version == 'vs2022' || matrix.os-compiler.msvc-version == 'vs2026'
       run: |
         cd test
         mkdir build-arm64; cd build-arm64
@@ -1752,9 +1778,10 @@ jobs:
         os-ubuntu:
           - { ubuntu-id: 2204, ubuntu-version: 22.04 }
           - { ubuntu-id: 2404, ubuntu-version: 24.04 }
+          - { ubuntu-id: 2604, ubuntu-version: 26.04 }
     runs-on: ubuntu-${{ matrix.os-ubuntu.ubuntu-version }}
     env:
-      COMMON_CMAKE_OPTIONS: -DCMAKE_INSTALL_PREFIX=install -DCMAKE_BUILD_TYPE=Release
+      COMMON_CMAKE_OPTIONS: -DCMAKE_POLICY_VERSION_MINIMUM=3.5 -DCMAKE_INSTALL_PREFIX=install -DCMAKE_BUILD_TYPE=Release
     steps:
     - uses: actions/checkout@v7
     - uses: actions/download-artifact@v8
@@ -1802,14 +1829,20 @@ jobs:
 
   webassembly:
     needs: [setup]
+    name: "${{ matrix.arch.name }} (${{ matrix.opencv-version }})"
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
         opencv-version: [2.4.13.7, 3.4.20, 4.14.0, 5.0.0]
+        arch:
+          - { name: webassembly, flags: "", pointer-size: 4 }
+          - { name: webassembly64, flags: "-m64", pointer-size: 8 }
     env:
       COMMON_CMAKE_OPTIONS: |
-        -DCMAKE_TOOLCHAIN_FILE=../emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake \
+        -DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
+        -DCMAKE_TOOLCHAIN_FILE=$GITHUB_WORKSPACE/emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake \
+        -DCMAKE_EXE_LINKER_FLAGS="${{ matrix.arch.flags }}" \
         -DCMAKE_INSTALL_PREFIX=install \
         -DCMAKE_BUILD_TYPE=Release \
     steps:
@@ -1827,7 +1860,7 @@ jobs:
       run: |
         unzip -q opencv-mobile-${{ matrix.opencv-version }}.zip
         echo "SOURCE_DIR=opencv-mobile-${{ matrix.opencv-version }}" >> $GITHUB_ENV
-        echo "PACKAGE_NAME=opencv-mobile-${{ matrix.opencv-version }}-webassembly" >> $GITHUB_ENV
+        echo "PACKAGE_NAME=opencv-mobile-${{ matrix.opencv-version }}-${{ matrix.arch.name }}" >> $GITHUB_ENV
     - name: build
       run: |
         source emsdk/emsdk_env.sh
@@ -1836,8 +1869,8 @@ jobs:
         mkdir build && cd build
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
             -DCPU_BASELINE="" -DCPU_DISPATCH="" -DWITH_PTHREADS_PF=OFF -DCV_ENABLE_INTRINSICS=OFF -DBUILD_WASM_INTRIN_TESTS=OFF \
-            -DCMAKE_C_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=0" \
-            -DCMAKE_CXX_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=0" \
+            -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions" \
+            -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions" \
             `cat ../options.txt` -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
@@ -1848,8 +1881,8 @@ jobs:
         mkdir build-simd && cd build-simd
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
             -DCPU_BASELINE="" -DCPU_DISPATCH="" -DWITH_PTHREADS_PF=OFF -DCV_ENABLE_INTRINSICS=ON -DBUILD_WASM_INTRIN_TESTS=OFF \
-            -DCMAKE_C_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=0 -msimd128" \
-            -DCMAKE_CXX_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=0 -msimd128" \
+            -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -msimd128" \
+            -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -msimd128" \
             `cat ../options.txt` -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
@@ -1861,8 +1894,8 @@ jobs:
         mkdir build-threads && cd build-threads
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
             -DCPU_BASELINE="" -DCPU_DISPATCH="" -DWITH_PTHREADS_PF=ON -DCV_ENABLE_INTRINSICS=OFF -DBUILD_WASM_INTRIN_TESTS=OFF \
-            -DCMAKE_C_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=1 -s PTHREAD_POOL_SIZE=4" \
-            -DCMAKE_CXX_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=1 -s PTHREAD_POOL_SIZE=4" \
+            -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4" \
+            -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4" \
             `cat ../options.txt` -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
@@ -1873,8 +1906,8 @@ jobs:
         mkdir build-simd-threads && cd build-simd-threads
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
             -DCPU_BASELINE="" -DCPU_DISPATCH="" -DWITH_PTHREADS_PF=ON -DCV_ENABLE_INTRINSICS=ON -DBUILD_WASM_INTRIN_TESTS=OFF \
-            -DCMAKE_C_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=1 -s PTHREAD_POOL_SIZE=4 -msimd128" \
-            -DCMAKE_CXX_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=1 -s PTHREAD_POOL_SIZE=4 -msimd128" \
+            -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4 -msimd128" \
+            -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4 -msimd128" \
             `cat ../options.txt` -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
@@ -1899,38 +1932,46 @@ jobs:
       run: echo "OPENCV_SUBDIR=lib/cmake/opencv5" >> $GITHUB_ENV
     - name: test
       run: |
+        source emsdk/emsdk_env.sh
         cd test
         mkdir build && cd build
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
-            -DCMAKE_C_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=0" \
-            -DCMAKE_CXX_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=0" \
+            -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions" \
+            -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions" \
+            -DOPENCV_MOBILE_TEST_POINTER_SIZE=${{ matrix.arch.pointer-size }} \
             -DOpenCV_DIR=$GITHUB_WORKSPACE/${{ env.PACKAGE_NAME }}/basic/${{ env.OPENCV_SUBDIR }} ..
         cmake --build . -j $(nproc)
     - name: test-simd
       run: |
+        source emsdk/emsdk_env.sh
         cd test
         mkdir build-simd && cd build-simd
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
-            -DCMAKE_C_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=0 -msimd128" \
-            -DCMAKE_CXX_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=0 -msimd128" \
+            -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -msimd128" \
+            -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -msimd128" \
+            -DOPENCV_MOBILE_TEST_POINTER_SIZE=${{ matrix.arch.pointer-size }} \
             -DOpenCV_DIR=$GITHUB_WORKSPACE/${{ env.PACKAGE_NAME }}/simd/${{ env.OPENCV_SUBDIR }} ..
         cmake --build . -j $(nproc)
     - name: test-threads
       run: |
+        source emsdk/emsdk_env.sh
         cd test
         mkdir build-threads && cd build-threads
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
-            -DCMAKE_C_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=1 -s PTHREAD_POOL_SIZE=4" \
-            -DCMAKE_CXX_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=1 -s PTHREAD_POOL_SIZE=4" \
+            -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4" \
+            -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4" \
+            -DOPENCV_MOBILE_TEST_POINTER_SIZE=${{ matrix.arch.pointer-size }} \
             -DOpenCV_DIR=$GITHUB_WORKSPACE/${{ env.PACKAGE_NAME }}/threads/${{ env.OPENCV_SUBDIR }} ..
         cmake --build . -j $(nproc)
     - name: test-simd-threads
       run: |
+        source emsdk/emsdk_env.sh
         cd test
         mkdir build-simd-threads && cd build-simd-threads
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
-            -DCMAKE_C_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=1 -s PTHREAD_POOL_SIZE=4 -msimd128" \
-            -DCMAKE_CXX_FLAGS="-fno-rtti -fno-exceptions -s WASM=1 -s USE_PTHREADS=1 -s PTHREAD_POOL_SIZE=4 -msimd128" \
+            -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4 -msimd128" \
+            -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4 -msimd128" \
+            -DOPENCV_MOBILE_TEST_POINTER_SIZE=${{ matrix.arch.pointer-size }} \
             -DOpenCV_DIR=$GITHUB_WORKSPACE/${{ env.PACKAGE_NAME }}/simd-threads/${{ env.OPENCV_SUBDIR }} ..
         cmake --build . -j $(nproc)
     - name: upload
@@ -1940,6 +1981,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   apple:
+    if: github.event_name != 'pull_request'
     needs: [macos, ios, ios-simulator, mac-catalyst, watchos, watchos-simulator, tvos, tvos-simulator, visionos, visionos-simulator]
     runs-on: macos-14
     strategy:
@@ -2045,6 +2087,7 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   devboard:
+    if: github.event_name != 'pull_request'
     needs: [setup]
     name: "devboard-${{ matrix.name }} (${{ matrix.opencv-version }})"
     runs-on: ubuntu-latest
diff --git a/README.md b/README.md
index 25687bcd..76104baf 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@
 
 https://github.com/nihui/opencv-mobile/releases/latest
 
-OpenCV **5.0.0** packages require a C++17-capable compiler. Windows OpenCV 5.0.0 packages are provided for VS2019 and VS2022 only.
+OpenCV **5.0.0** packages require a C++17-capable compiler. Windows OpenCV 5.0.0 packages are provided for VS2019, VS2022 and VS2026 only.
 
 <table>
 <tr>
@@ -229,7 +229,7 @@ OpenCV **5.0.0** packages require a C++17-capable compiler. Windows OpenCV 5.0.0
 </tr>
 
 <tr>
-<td rowspan=2>
+<td rowspan=3>
   <img src="https://user-images.githubusercontent.com/25181517/186884153-99edc188-e4aa-4c84-91b0-e2df260ebc33.png" width="64" height="auto">
 </td>
 <td>Ubuntu-22.04</td>
@@ -251,11 +251,22 @@ OpenCV **5.0.0** packages require a C++17-capable compiler. Windows OpenCV 5.0.0
   [<img src="https://img.shields.io/badge/download-4.14.0-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-4.14.0-ubuntu-2404.zip)
   [<img src="https://img.shields.io/badge/download-5.0.0-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-5.0.0-ubuntu-2404.zip)
 
+</td>
+</tr>
+<tr>
+<td>Ubuntu-26.04</td>
+<td>
+
+  [<img src="https://img.shields.io/badge/download-2.4.13.7-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-2.4.13.7-ubuntu-2604.zip)
+  [<img src="https://img.shields.io/badge/download-3.4.20-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-3.4.20-ubuntu-2604.zip)
+  [<img src="https://img.shields.io/badge/download-4.14.0-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-4.14.0-ubuntu-2604.zip)
+  [<img src="https://img.shields.io/badge/download-5.0.0-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-5.0.0-ubuntu-2604.zip)
+
 </td>
 </tr>
 
 <tr>
-<td rowspan=4>
+<td rowspan=5>
   <img src="https://user-images.githubusercontent.com/25181517/186884150-05e9ff6d-340e-4802-9533-2c3f02363ee3.png" width="64" height="auto">
 </td>
 <td>VS2015</td>
@@ -299,12 +310,23 @@ OpenCV **5.0.0** packages require a C++17-capable compiler. Windows OpenCV 5.0.0
 
 </td>
 </tr>
-
 <tr>
+<td>VS2026</td>
 <td>
+
+  [<img src="https://img.shields.io/badge/download-2.4.13.7-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-2.4.13.7-windows-vs2026.zip)
+  [<img src="https://img.shields.io/badge/download-3.4.20-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-3.4.20-windows-vs2026.zip)
+  [<img src="https://img.shields.io/badge/download-4.14.0-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-4.14.0-windows-vs2026.zip)
+  [<img src="https://img.shields.io/badge/download-5.0.0-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-5.0.0-windows-vs2026.zip)
+
+</td>
+</tr>
+
+<tr>
+<td rowspan=2>
   <img src="https://user-images.githubusercontent.com/25181517/188324036-d704ac9a-6e61-4722-b978-254b25b61bed.png" width="64" height="auto">
 </td>
-<td>WebAssembly</td>
+<td>WebAssembly (32-bit)</td>
 <td>
 
   [<img src="https://img.shields.io/badge/download-2.4.13.7-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-2.4.13.7-webassembly.zip)
@@ -312,6 +334,17 @@ OpenCV **5.0.0** packages require a C++17-capable compiler. Windows OpenCV 5.0.0
   [<img src="https://img.shields.io/badge/download-4.14.0-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-4.14.0-webassembly.zip)
   [<img src="https://img.shields.io/badge/download-5.0.0-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-5.0.0-webassembly.zip)
 
+</td>
+</tr>
+<tr>
+<td>WebAssembly64</td>
+<td>
+
+  [<img src="https://img.shields.io/badge/download-2.4.13.7-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-2.4.13.7-webassembly64.zip)
+  [<img src="https://img.shields.io/badge/download-3.4.20-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-3.4.20-webassembly64.zip)
+  [<img src="https://img.shields.io/badge/download-4.14.0-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-4.14.0-webassembly64.zip)
+  [<img src="https://img.shields.io/badge/download-5.0.0-blue?style=for-the-badge">](https://github.com/nihui/opencv-mobile/releases/latest/download/opencv-mobile-5.0.0-webassembly64.zip)
+
 </td>
 </tr>
 
@@ -335,7 +368,9 @@ OpenCV **5.0.0** packages require a C++17-capable compiler. Windows OpenCV 5.0.0
 * [KleidiCV](https://gitlab.arm.com/kleidi/kleidicv) HAL enabled for Android arm64-v8a, all Apple arm64/arm64e platforms and Linux aarch64 targets
 * iOS / MacOS / Mac-Catalyst / watchOS / tvOS / visionOS package build with Xcode 15.2
 * ARM Linux package build with cross-compiler on Ubuntu-24.04
-* WebAssembly package build with Emscripten 3.1.28
+* Ubuntu packages build on Ubuntu-22.04, Ubuntu-24.04 and Ubuntu-26.04 respectively
+* VS2026 package includes x86, x64 and arm64 builds
+* WebAssembly (32-bit) and WebAssembly64 packages build with Emscripten 6.0.12; both include basic, simd, threads and simd-threads variants
 
 ### opencv-mobile package for development boards
 
@@ -533,6 +568,8 @@ find_package(OpenCV REQUIRED)
 target_link_libraries(your_target ${OpenCV_LIBS})
 ```
 
+For WebAssembly64, pass ```-m64``` when compiling and linking your application, and use a memory64-capable runtime. The existing WebAssembly package remains 32-bit.
+
 # How-to-build your custom package
 
 We reduce the binary size of opencv-mobile in 3 ways
diff --git a/patches/opencv-2.4.13.7-newer-msvc.patch b/patches/opencv-2.4.13.7-newer-msvc.patch
index cbdffc7e..0b84918e 100644
--- a/patches/opencv-2.4.13.7-newer-msvc.patch
+++ b/patches/opencv-2.4.13.7-newer-msvc.patch
@@ -1,7 +1,7 @@
 diff -Nuarp opencv-2.4.13.7.orig/cmake/OpenCVConfig.cmake opencv-2.4.13.7/cmake/OpenCVConfig.cmake
 --- opencv-2.4.13.7.orig/cmake/OpenCVConfig.cmake	2018-07-02 20:41:56.000000000 +0800
 +++ opencv-2.4.13.7/cmake/OpenCVConfig.cmake	2023-08-13 22:11:10.193931771 +0800
-@@ -85,6 +85,10 @@ elseif(MSVC)
+@@ -85,6 +85,12 @@ elseif(MSVC)
      set(OpenCV_RUNTIME vc14)
    elseif(MSVC_VERSION MATCHES "^191[0-9]$")
      set(OpenCV_RUNTIME vc15)
@@ -9,13 +9,15 @@ diff -Nuarp opencv-2.4.13.7.orig/cmake/OpenCVConfig.cmake opencv-2.4.13.7/cmake/
 +    set(OpenCV_RUNTIME vc16)
 +  elseif(MSVC_VERSION MATCHES "^19[34][0-9]$")
 +    set(OpenCV_RUNTIME vc17)
++  elseif(MSVC_VERSION MATCHES "^195[0-9]$")
++    set(OpenCV_RUNTIME vc18)
    endif()
  elseif(MINGW)
    set(OpenCV_RUNTIME mingw)
 diff -Nuarp opencv-2.4.13.7.orig/cmake/OpenCVDetectCXXCompiler.cmake opencv-2.4.13.7/cmake/OpenCVDetectCXXCompiler.cmake
 --- opencv-2.4.13.7.orig/cmake/OpenCVDetectCXXCompiler.cmake	2018-07-02 20:41:56.000000000 +0800
 +++ opencv-2.4.13.7/cmake/OpenCVDetectCXXCompiler.cmake	2023-08-13 22:11:03.358965110 +0800
-@@ -104,6 +104,10 @@ elseif(MSVC)
+@@ -104,6 +104,12 @@ elseif(MSVC)
      set(OpenCV_RUNTIME vc14)
    elseif(MSVC_VERSION MATCHES "^191[0-9]$")
      set(OpenCV_RUNTIME vc15)
@@ -23,6 +25,8 @@ diff -Nuarp opencv-2.4.13.7.orig/cmake/OpenCVDetectCXXCompiler.cmake opencv-2.4.
 +    set(OpenCV_RUNTIME vc16)
 +  elseif(MSVC_VERSION MATCHES "^19[34][0-9]$")
 +    set(OpenCV_RUNTIME vc17)
++  elseif(MSVC_VERSION MATCHES "^195[0-9]$")
++    set(OpenCV_RUNTIME vc18)
    endif()
  elseif(MINGW)
    set(OpenCV_RUNTIME mingw)
diff --git a/patches/opencv-3.4.20-newer-msvc.patch b/patches/opencv-3.4.20-newer-msvc.patch
index 53212e9e..313c22ab 100644
--- a/patches/opencv-3.4.20-newer-msvc.patch
+++ b/patches/opencv-3.4.20-newer-msvc.patch
@@ -1,15 +1,18 @@
 diff -Nuarp opencv-3.4.20.orig/cmake/OpenCVDetectCXXCompiler.cmake opencv-3.4.20/cmake/OpenCVDetectCXXCompiler.cmake
 --- opencv-3.4.20.orig/cmake/OpenCVDetectCXXCompiler.cmake	2023-06-27 19:29:13.000000000 +0800
 +++ opencv-3.4.20/cmake/OpenCVDetectCXXCompiler.cmake	2024-06-10 14:47:05.286016469 +0800
-@@ -169,7 +169,7 @@ elseif(MSVC)
+@@ -169,8 +169,10 @@ elseif(MSVC)
      set(OpenCV_RUNTIME vc15)
    elseif(MSVC_VERSION MATCHES "^192[0-9]$")
      set(OpenCV_RUNTIME vc16)
 -  elseif(MSVC_VERSION MATCHES "^193[0-9]$")
 +  elseif(MSVC_VERSION MATCHES "^19[34][0-9]$")
      set(OpenCV_RUNTIME vc17)
++  elseif(MSVC_VERSION MATCHES "^195[0-9]$")
++    set(OpenCV_RUNTIME vc18)
    else()
      message(WARNING "OpenCV does not recognize MSVC_VERSION \"${MSVC_VERSION}\". Cannot set OpenCV_RUNTIME")
+   endif()
 diff -Nuarp opencv-3.4.20.orig/cmake/templates/OpenCVConfig.root-WIN32.cmake.in opencv-3.4.20/cmake/templates/OpenCVConfig.root-WIN32.cmake.in
 --- opencv-3.4.20.orig/cmake/templates/OpenCVConfig.root-WIN32.cmake.in	2023-06-27 19:29:13.000000000 +0800
 +++ opencv-3.4.20/cmake/templates/OpenCVConfig.root-WIN32.cmake.in	2024-06-10 14:46:17.345712729 +0800
@@ -22,3 +25,28 @@ diff -Nuarp opencv-3.4.20.orig/cmake/templates/OpenCVConfig.root-WIN32.cmake.in
      set(OpenCV_RUNTIME vc17)
      check_one_config(has_VS2022)
      if(NOT has_VS2022)
+@@ -151,6 +151,24 @@ elseif(MSVC)
+        endif()
+      endif()
+     endif()
++  elseif(MSVC_VERSION MATCHES "^195[0-9]$")
++    set(OpenCV_RUNTIME vc18)
++    check_one_config(has_VS2026)
++    if(NOT has_VS2026)
++      set(OpenCV_RUNTIME vc17) # selecting previous compatible runtime version
++      check_one_config(has_VS2022)
++      if(NOT has_VS2022)
++        set(OpenCV_RUNTIME vc16) # selecting previous compatible runtime version
++        check_one_config(has_VS2019)
++        if(NOT has_VS2019)
++          set(OpenCV_RUNTIME vc15) # selecting previous compatible runtime version
++          check_one_config(has_VS2017)
++          if(NOT has_VS2017)
++            set(OpenCV_RUNTIME vc14) # selecting previous compatible runtime version
++          endif()
++        endif()
++      endif()
++    endif()
+   endif()
+ elseif(MINGW)
+   set(OpenCV_RUNTIME mingw)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 79a93393..10847f30 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -25,6 +25,11 @@ endif()
 
 add_executable(opencv-mobile-test main.cpp)
 
+set(OPENCV_MOBILE_TEST_POINTER_SIZE "" CACHE STRING "Expected pointer size for the test target")
+if(OPENCV_MOBILE_TEST_POINTER_SIZE)
+    target_compile_definitions(opencv-mobile-test PRIVATE OPENCV_MOBILE_TEST_POINTER_SIZE=${OPENCV_MOBILE_TEST_POINTER_SIZE})
+endif()
+
 if(NOT OPENCV_MOBILE_TEST_CXX_STANDARD AND DEFINED OpenCV_VERSION)
     if(OpenCV_VERSION VERSION_GREATER_EQUAL 5)
         set(OPENCV_MOBILE_TEST_CXX_STANDARD 17)
diff --git a/test/main.cpp b/test/main.cpp
index f8d2873d..14e54cec 100644
--- a/test/main.cpp
+++ b/test/main.cpp
@@ -2,6 +2,10 @@
 #include <opencv2/highgui/highgui.hpp>
 #include <opencv2/imgproc/imgproc.hpp>
 
+#ifdef OPENCV_MOBILE_TEST_POINTER_SIZE
+typedef char opencv_mobile_test_pointer_size[sizeof(void*) == OPENCV_MOBILE_TEST_POINTER_SIZE ? 1 : -1];
+#endif
+
 int main()
 {
     cv::Mat bgr = cv::imread("in.jpg", 1);

From 24f513f45ac0e3df7cbc28fca7e686235374af43 Mon Sep 17 00:00:00 2001
From: nihui <shuizhuyuanluo@126.com>
Date: Tue, 20 Oct 2026 13:09:37 +0800
Subject: [PATCH 2/4] Apply WebAssembly thread options after shared defaults

---
 .github/workflows/release.yml | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 88538c48..fd263ce4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1868,10 +1868,10 @@ jobs:
         patch -p1 -i ../patches/opencv-${{ matrix.opencv-version }}-unsafe-xadd.patch
         mkdir build && cd build
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
-            -DCPU_BASELINE="" -DCPU_DISPATCH="" -DWITH_PTHREADS_PF=OFF -DCV_ENABLE_INTRINSICS=OFF -DBUILD_WASM_INTRIN_TESTS=OFF \
+            -DCPU_BASELINE="" -DCPU_DISPATCH="" -DCV_ENABLE_INTRINSICS=OFF -DBUILD_WASM_INTRIN_TESTS=OFF \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions" \
-            `cat ../options.txt` -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
+            `cat ../options.txt` -DWITH_PTHREADS_PF=OFF -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
     - name: build-simd
@@ -1880,10 +1880,10 @@ jobs:
         cd ${{ env.SOURCE_DIR }}
         mkdir build-simd && cd build-simd
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
-            -DCPU_BASELINE="" -DCPU_DISPATCH="" -DWITH_PTHREADS_PF=OFF -DCV_ENABLE_INTRINSICS=ON -DBUILD_WASM_INTRIN_TESTS=OFF \
+            -DCPU_BASELINE="" -DCPU_DISPATCH="" -DCV_ENABLE_INTRINSICS=ON -DBUILD_WASM_INTRIN_TESTS=OFF \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -msimd128" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -msimd128" \
-            `cat ../options.txt` -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
+            `cat ../options.txt` -DWITH_PTHREADS_PF=OFF -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
     - name: build-threads
@@ -1893,10 +1893,10 @@ jobs:
         patch -p1 -R -i ../patches/opencv-${{ matrix.opencv-version }}-unsafe-xadd.patch
         mkdir build-threads && cd build-threads
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
-            -DCPU_BASELINE="" -DCPU_DISPATCH="" -DWITH_PTHREADS_PF=ON -DCV_ENABLE_INTRINSICS=OFF -DBUILD_WASM_INTRIN_TESTS=OFF \
+            -DCPU_BASELINE="" -DCPU_DISPATCH="" -DCV_ENABLE_INTRINSICS=OFF -DBUILD_WASM_INTRIN_TESTS=OFF \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4" \
-            `cat ../options.txt` -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
+            `cat ../options.txt` -DWITH_PTHREADS_PF=ON -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
     - name: build-simd-threads
@@ -1905,10 +1905,10 @@ jobs:
         cd ${{ env.SOURCE_DIR }}
         mkdir build-simd-threads && cd build-simd-threads
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
-            -DCPU_BASELINE="" -DCPU_DISPATCH="" -DWITH_PTHREADS_PF=ON -DCV_ENABLE_INTRINSICS=ON -DBUILD_WASM_INTRIN_TESTS=OFF \
+            -DCPU_BASELINE="" -DCPU_DISPATCH="" -DCV_ENABLE_INTRINSICS=ON -DBUILD_WASM_INTRIN_TESTS=OFF \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4 -msimd128" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4 -msimd128" \
-            `cat ../options.txt` -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
+            `cat ../options.txt` -DWITH_PTHREADS_PF=ON -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
     - name: package

From 32b9aaaec93b2b75792142a71e883ce3979a97db Mon Sep 17 00:00:00 2001
From: nihui <shuizhuyuanluo@126.com>
Date: Tue, 20 Oct 2026 13:12:55 +0800
Subject: [PATCH 3/4] Fix Emscripten runtime linking and PowerShell CMake
 version quoting

---
 .github/workflows/release.yml | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index fd263ce4..0f88a09a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,6 +11,10 @@ on:
     tags:
       - '*'
 
+concurrency:
+  group: release-${{ github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
 env:
   DEVELOPER_DIR: /Applications/Xcode_15.2.app/Contents/Developer
   IOS_DEPLOYMENT_TARGET: '13.0'
@@ -1665,7 +1669,7 @@ jobs:
     runs-on: windows-${{ matrix.os-compiler.windows-version }}
     env:
       UseMultiToolTask: true
-      COMMON_CMAKE_OPTIONS: -G "${{ matrix.os-compiler.msvc-version == 'vs2026' && 'Visual Studio 18 2026' || 'Visual Studio 17 2022' }}" -T ${{ matrix.os-compiler.toolset-version }},host=x64 -DCMAKE_POLICY_VERSION_MINIMUM=3.5 -DCMAKE_INSTALL_PREFIX=install
+      COMMON_CMAKE_OPTIONS: -G "${{ matrix.os-compiler.msvc-version == 'vs2026' && 'Visual Studio 18 2026' || 'Visual Studio 17 2022' }}" -T ${{ matrix.os-compiler.toolset-version }},host=x64 "-DCMAKE_POLICY_VERSION_MINIMUM=3.5" -DCMAKE_INSTALL_PREFIX=install
     steps:
     - uses: actions/checkout@v7
     - uses: actions/download-artifact@v8
@@ -1871,7 +1875,7 @@ jobs:
             -DCPU_BASELINE="" -DCPU_DISPATCH="" -DCV_ENABLE_INTRINSICS=OFF -DBUILD_WASM_INTRIN_TESTS=OFF \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions" \
-            `cat ../options.txt` -DWITH_PTHREADS_PF=OFF -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
+            `cat ../options.txt` -DWITH_OPENMP=OFF -DWITH_PTHREADS_PF=OFF -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
     - name: build-simd
@@ -1883,7 +1887,7 @@ jobs:
             -DCPU_BASELINE="" -DCPU_DISPATCH="" -DCV_ENABLE_INTRINSICS=ON -DBUILD_WASM_INTRIN_TESTS=OFF \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -msimd128" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -msimd128" \
-            `cat ../options.txt` -DWITH_PTHREADS_PF=OFF -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
+            `cat ../options.txt` -DWITH_OPENMP=OFF -DWITH_PTHREADS_PF=OFF -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
     - name: build-threads
@@ -1896,7 +1900,7 @@ jobs:
             -DCPU_BASELINE="" -DCPU_DISPATCH="" -DCV_ENABLE_INTRINSICS=OFF -DBUILD_WASM_INTRIN_TESTS=OFF \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4" \
-            `cat ../options.txt` -DWITH_PTHREADS_PF=ON -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
+            `cat ../options.txt` -DWITH_OPENMP=OFF -DWITH_PTHREADS_PF=ON -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
     - name: build-simd-threads
@@ -1908,7 +1912,7 @@ jobs:
             -DCPU_BASELINE="" -DCPU_DISPATCH="" -DCV_ENABLE_INTRINSICS=ON -DBUILD_WASM_INTRIN_TESTS=OFF \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4 -msimd128" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4 -msimd128" \
-            `cat ../options.txt` -DWITH_PTHREADS_PF=ON -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
+            `cat ../options.txt` -DWITH_OPENMP=OFF -DWITH_PTHREADS_PF=ON -DBUILD_opencv_world=OFF -DOPENCV_DISABLE_FILESYSTEM_SUPPORT=ON ..
         cmake --build . -j $(nproc)
         cmake --build . --target install
     - name: package

From 38cc17a40b41448b8a889fa15b411b88138364af Mon Sep 17 00:00:00 2001
From: nihui <shuizhuyuanluo@126.com>
Date: Tue, 20 Oct 2026 14:12:43 +0800
Subject: [PATCH 4/4] Keep release platform changes scoped to tag builds

---
 .github/workflows/release.yml | 34 ++--------------------------------
 test/CMakeLists.txt           |  5 -----
 test/main.cpp                 |  4 ----
 3 files changed, 2 insertions(+), 41 deletions(-)

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0f88a09a..e96b8166 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,20 +1,9 @@
 name: release
 on:
-  pull_request:
-    paths:
-      - ".github/workflows/release.yml"
-      - "patches/**"
-      - "highgui/**"
-      - "test/**"
-      - "opencv*_cmake_options.txt"
   push:
     tags:
       - '*'
 
-concurrency:
-  group: release-${{ github.ref }}
-  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
-
 env:
   DEVELOPER_DIR: /Applications/Xcode_15.2.app/Contents/Developer
   IOS_DEPLOYMENT_TARGET: '13.0'
@@ -365,7 +354,6 @@ jobs:
         path: opencv-mobile-5.0.0.zip
 
   android:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: ubuntu-latest
     strategy:
@@ -469,7 +457,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   harmonyos:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: ubuntu-latest
     strategy:
@@ -569,7 +556,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   ios:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -658,7 +644,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   ios-simulator:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -757,7 +742,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   armlinux:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: ubuntu-latest
     strategy:
@@ -856,7 +840,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   macos:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -959,7 +942,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   mac-catalyst:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1058,7 +1040,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   watchos:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1144,7 +1125,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   watchos-simulator:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1243,7 +1223,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   tvos:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1348,7 +1327,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   tvos-simulator:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1447,7 +1425,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   visionos:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1536,7 +1513,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   visionos-simulator:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     runs-on: macos-14
     strategy:
@@ -1840,8 +1816,8 @@ jobs:
       matrix:
         opencv-version: [2.4.13.7, 3.4.20, 4.14.0, 5.0.0]
         arch:
-          - { name: webassembly, flags: "", pointer-size: 4 }
-          - { name: webassembly64, flags: "-m64", pointer-size: 8 }
+          - { name: webassembly, flags: "" }
+          - { name: webassembly64, flags: "-m64" }
     env:
       COMMON_CMAKE_OPTIONS: |
         -DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
@@ -1942,7 +1918,6 @@ jobs:
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions" \
-            -DOPENCV_MOBILE_TEST_POINTER_SIZE=${{ matrix.arch.pointer-size }} \
             -DOpenCV_DIR=$GITHUB_WORKSPACE/${{ env.PACKAGE_NAME }}/basic/${{ env.OPENCV_SUBDIR }} ..
         cmake --build . -j $(nproc)
     - name: test-simd
@@ -1953,7 +1928,6 @@ jobs:
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -msimd128" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -msimd128" \
-            -DOPENCV_MOBILE_TEST_POINTER_SIZE=${{ matrix.arch.pointer-size }} \
             -DOpenCV_DIR=$GITHUB_WORKSPACE/${{ env.PACKAGE_NAME }}/simd/${{ env.OPENCV_SUBDIR }} ..
         cmake --build . -j $(nproc)
     - name: test-threads
@@ -1964,7 +1938,6 @@ jobs:
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4" \
-            -DOPENCV_MOBILE_TEST_POINTER_SIZE=${{ matrix.arch.pointer-size }} \
             -DOpenCV_DIR=$GITHUB_WORKSPACE/${{ env.PACKAGE_NAME }}/threads/${{ env.OPENCV_SUBDIR }} ..
         cmake --build . -j $(nproc)
     - name: test-simd-threads
@@ -1975,7 +1948,6 @@ jobs:
         cmake ${{ env.COMMON_CMAKE_OPTIONS }} \
             -DCMAKE_C_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4 -msimd128" \
             -DCMAKE_CXX_FLAGS="${{ matrix.arch.flags }} -fno-rtti -fno-exceptions -pthread -s PTHREAD_POOL_SIZE=4 -msimd128" \
-            -DOPENCV_MOBILE_TEST_POINTER_SIZE=${{ matrix.arch.pointer-size }} \
             -DOpenCV_DIR=$GITHUB_WORKSPACE/${{ env.PACKAGE_NAME }}/simd-threads/${{ env.OPENCV_SUBDIR }} ..
         cmake --build . -j $(nproc)
     - name: upload
@@ -1985,7 +1957,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   apple:
-    if: github.event_name != 'pull_request'
     needs: [macos, ios, ios-simulator, mac-catalyst, watchos, watchos-simulator, tvos, tvos-simulator, visionos, visionos-simulator]
     runs-on: macos-14
     strategy:
@@ -2091,7 +2062,6 @@ jobs:
         path: ${{ env.PACKAGE_NAME }}.zip
 
   devboard:
-    if: github.event_name != 'pull_request'
     needs: [setup]
     name: "devboard-${{ matrix.name }} (${{ matrix.opencv-version }})"
     runs-on: ubuntu-latest
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 10847f30..79a93393 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -25,11 +25,6 @@ endif()
 
 add_executable(opencv-mobile-test main.cpp)
 
-set(OPENCV_MOBILE_TEST_POINTER_SIZE "" CACHE STRING "Expected pointer size for the test target")
-if(OPENCV_MOBILE_TEST_POINTER_SIZE)
-    target_compile_definitions(opencv-mobile-test PRIVATE OPENCV_MOBILE_TEST_POINTER_SIZE=${OPENCV_MOBILE_TEST_POINTER_SIZE})
-endif()
-
 if(NOT OPENCV_MOBILE_TEST_CXX_STANDARD AND DEFINED OpenCV_VERSION)
     if(OpenCV_VERSION VERSION_GREATER_EQUAL 5)
         set(OPENCV_MOBILE_TEST_CXX_STANDARD 17)
diff --git a/test/main.cpp b/test/main.cpp
index 14e54cec..f8d2873d 100644
--- a/test/main.cpp
+++ b/test/main.cpp
@@ -2,10 +2,6 @@
 #include <opencv2/highgui/highgui.hpp>
 #include <opencv2/imgproc/imgproc.hpp>
 
-#ifdef OPENCV_MOBILE_TEST_POINTER_SIZE
-typedef char opencv_mobile_test_pointer_size[sizeof(void*) == OPENCV_MOBILE_TEST_POINTER_SIZE ? 1 : -1];
-#endif
-
 int main()
 {
     cv::Mat bgr = cv::imread("in.jpg", 1);