Integrate dart-bridge into flet-0.86 (in-process FFI transport, multi-version Python, native-mmap, DataChannel)

.fvmrc

@@ -1,3 +1,3 @@
 {
-  "flutter": "3.41.7"
+  "flutter": "3.44.2"
 }

.github/workflows/ci.yml

@@ -53,10 +53,10 @@ jobs:
         python-version: [ "3.10", "3.11", "3.12", "3.13", "3.14" ]
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -85,7 +85,7 @@ jobs:
 
       - name: Upload docs-coverage logs
         if: matrix.python-version == '3.12'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: docs-coverage
           path: sdk/python/docstr_coverage.log
@@ -98,18 +98,18 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 24
 
       - name: Enable Corepack
         run: corepack enable
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
 
       - name: Build website
         run: |
@@ -131,20 +131,20 @@ jobs:
       PYPI_VER: ${{ steps.versions.outputs.PYPI_VER }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0   # fetch all history
           fetch-tags: true # ensure tags are available
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
 
       - name: Compute versions
         id: versions
         run: source "${SCRIPTS}/update_build_version.sh"
 
       - name: Setup Dart (OIDC for pub.dev)
-        uses: dart-lang/setup-dart@e630b99d28a3b71860378cafdc2a067c71107f94
+        uses: dart-lang/setup-dart@v1.7.2
 
       - name: Setup Flutter
         uses: kuhnroyal/flutter-fvm-config-action/setup@v3
@@ -179,10 +179,10 @@ jobs:
       PKG_VER: ${{ needs.build_flet_package.outputs.PKG_VER }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
 
       - name: Patch build template flet version
         shell: bash
@@ -207,7 +207,7 @@ jobs:
           zip -r "$GITHUB_WORKSPACE/flet-app-templates.zip" app/
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: template-artifacts
           path: |
@@ -219,7 +219,7 @@ jobs:
   # =============================
   build_windows:
     name: Build Flet Client for Windows
-    runs-on: windows-latest
+    runs-on: windows-2025-vs2026
     needs:
       - python_tests
       - build_flet_package
@@ -229,10 +229,10 @@ jobs:
       PYPI_VER: ${{ needs.build_flet_package.outputs.PYPI_VER }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
 
       - name: Setup Flutter
         uses: kuhnroyal/flutter-fvm-config-action/setup@v3
@@ -262,7 +262,7 @@ jobs:
           7z a "${ROOT}/client/flet-windows.zip" "flet"
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: windows-artifacts
           if-no-files-found: error
@@ -284,10 +284,10 @@ jobs:
       PYPI_VER: ${{ needs.build_flet_package.outputs.PYPI_VER }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
 
       - name: Setup Flutter
         uses: kuhnroyal/flutter-fvm-config-action/setup@v3
@@ -303,7 +303,7 @@ jobs:
           tar -czvf flet-macos.tar.gz -C build/macos/Build/Products/Release Flet.app
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: macos-artifacts
           if-no-files-found: error
@@ -442,10 +442,10 @@ jobs:
           apt-get install -y git curl unzip xz-utils zip ca-certificates jq tzdata
 
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
 
       - name: Get Flutter version from ".fvmrc"
         uses: kuhnroyal/flutter-fvm-config-action/config@v3
@@ -475,7 +475,7 @@ jobs:
             sed -i.bak '/apt.postgresql.org/s/^/# /' /etc/apt/sources.list
           fi
           apt-get update --allow-releaseinfo-change
-          LINUX_DEPS="$(uv run --project sdk/python/packages/flet python -c 'from flet.utils.linux_deps import linux_dependencies; print(" ".join(linux_dependencies))')"
+          LINUX_DEPS="$(uv run --project sdk/python/packages/flet-cli flet --version --json | jq -r '.linux_dependencies | join(" ")')"
           apt-get install -y $LINUX_DEPS
 
       - name: Build Flutter Linux clients
@@ -536,7 +536,7 @@ jobs:
           build_flutter "flet-desktop"
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: linux-${{ matrix.distro_id }}-${{ matrix.arch }}-artifacts
           if-no-files-found: error
@@ -556,10 +556,10 @@ jobs:
       PYPI_VER: ${{ needs.build_flet_package.outputs.PYPI_VER }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
 
       - name: Setup Flutter
         uses: kuhnroyal/flutter-fvm-config-action/setup@v3
@@ -578,18 +578,14 @@ jobs:
         shell: bash
         working-directory: ${{ env.SDK_PYTHON }}
         run: |
-          PYODIDE_VERSION="$( uv run python -c 'import flet.version; print(flet.version.pyodide_version)' )"
+          PYODIDE_VERSION="$( uv run python -c "from flet_cli.utils.python_versions import resolve_python_version; print(resolve_python_version(None).pyodide)" )"
           echo "PYODIDE_VERSION=$PYODIDE_VERSION" >> "$GITHUB_ENV"
           echo "Pyodide version: $PYODIDE_VERSION"
 
       - name: Build Web client
         shell: bash
         working-directory: client
         run: |
-          # Compute Pyodide URLs
-          PYODIDE_URL="https://github.com/pyodide/pyodide/releases/download/${PYODIDE_VERSION}/pyodide-core-${PYODIDE_VERSION}.tar.bz2"
-          PYODIDE_CDN_URL="https://cdn.jsdelivr.net/pyodide/v${PYODIDE_VERSION}/full"
-
           FLET_WEB="${SDK_PYTHON}/packages/flet-web/src/flet_web"
 
           flutter build web --wasm
@@ -600,13 +596,9 @@ jobs:
           FLUTTER_JS_DIR="$(dirname "$(command -v flutter)")/cache/flutter_web_sdk/flutter_js"
           cp "$FLUTTER_JS_DIR/flutter.js.map" "${FLET_WEB}/web"
 
-          # Download the Pyodide tarball and extract its contents into the web build folder
-          curl -L "$PYODIDE_URL" | tar -xj -C "${FLET_WEB}/web"
-
-          # Download the prebuilt pyodide wheels
-          for wheel in "packaging-24.2-py3-none-any.whl" "micropip-0.8.0-py3-none-any.whl"; do
-            curl -L "${PYODIDE_CDN_URL}/${wheel}" -o "${FLET_WEB}/web/pyodide/${wheel}"
-          done
+          # Download the Pyodide runtime (plus the micropip/packaging wheels
+          # resolved from pyodide-lock.json) into the web build folder
+          uv run --project "${SDK_PYTHON}" python -c "from pathlib import Path; from flet_cli.utils.pyodide import ensure_pyodide; ensure_pyodide('${PYODIDE_VERSION}', Path('${FLET_WEB}/web/pyodide'))"
 
           # Archive the web client into a gzipped tarball
           tar -czvf "flet-web.tar.gz" -C "build/web" .
@@ -621,7 +613,7 @@ jobs:
           uv build --package flet-web --sdist
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: web-artifacts
           if-no-files-found: error
@@ -644,13 +636,13 @@ jobs:
       PKG_VER: ${{ needs.build_flet_package.outputs.PKG_VER }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           fetch-tags: true
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
 
       - name: Setup Flutter
         uses: kuhnroyal/flutter-fvm-config-action/setup@v3
@@ -702,7 +694,7 @@ jobs:
           done
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: flet-python-extensions
           if-no-files-found: error
@@ -723,10 +715,10 @@ jobs:
       - build_flet_package
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
 
       - name: Build Python packages
         shell: bash
@@ -739,7 +731,7 @@ jobs:
           uv build --package flet-desktop
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: flet-cli-desktop-python-distribution
           path: |
@@ -775,7 +767,7 @@ jobs:
           fi
 
       - name: Download artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           path: dist
           merge-multiple: true
@@ -808,13 +800,13 @@ jobs:
       - release
     steps:
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
         with:
           ignore-empty-workdir: true
           cache-dependency-glob: ""
 
       - name: Download artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           path: dist
           merge-multiple: true

.github/workflows/docs.yml

@@ -9,18 +9,18 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 24
 
       - name: Enable Corepack
         run: corepack enable
 
       - name: Setup uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v8.2.0
 
       - name: Build website
         run: |

.github/workflows/flet-build-image.yml

@@ -26,7 +26,7 @@ jobs:
       flutter_version: ${{ steps.v.outputs.value }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Resolve version
         id: v
@@ -55,7 +55,7 @@ jobs:
       FLUTTER_VERSION: ${{ needs.resolve_version.outputs.flutter_version }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Compute platform pair
         id: pair
@@ -94,7 +94,7 @@ jobs:
           touch "/tmp/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: flet-build-digests-${{ steps.pair.outputs.value }}
           path: /tmp/digests/*
@@ -111,7 +111,7 @@ jobs:
       FLUTTER_VERSION: ${{ needs.resolve_version.outputs.flutter_version }}
     steps:
       - name: Download digests
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           path: /tmp/digests
           pattern: flet-build-digests-*