ci: bump Qt to 6.9.3 across all platforms

Update pinned Qt 6.8.3 -> 6.9.3 (latest 6.9.x) on Windows/Linux/macOS/TSan CI, refresh Qt cache keys, and return macOS runner to macos-latest (6.9.3 carries the QTBUG-137687 AGL fix). Docs and pack-win.ps1 updated to match.

Author: tamlok

.github/workflows/ci-linux-tsan.yml

@@ -79,12 +79,12 @@ jobs:
         uses: actions/cache@v4
         with:
           path: ${{runner.workspace}}/Qt
-          key: ${{ runner.os }}-QtCache-6.8
+          key: ${{ runner.os }}-QtCache-6.9
 
       - name: Install Qt
         uses: jurplel/install-qt-action@v3
         with:
-          version: 6.8.3
+          version: 6.9.3
           target: desktop
           modules: 'qtwebengine qtwebchannel qtpositioning qtpdf qtimageformats qt5compat qtserialport'
           tools: 'tools_opensslv3_src'

.github/workflows/ci-linux.yml

@@ -67,12 +67,12 @@ jobs:
         uses: actions/cache@v4
         with:
           path: ${{runner.workspace}}/Qt
-          key: ${{ runner.os }}-QtCache-6.8
+          key: ${{ runner.os }}-QtCache-6.9
 
       - name: Install Qt
         uses: jurplel/install-qt-action@v3
         with:
-          version: 6.8.3
+          version: 6.9.3
           target: desktop
           modules: 'qtwebengine qtwebchannel qtpositioning qtpdf qtimageformats qt5compat qtserialport'
           tools: 'tools_opensslv3_src'

.github/workflows/ci-macos.yml

@@ -30,15 +30,12 @@ jobs:
       matrix:
         config:
           - name: "Build on Arm64"
-            # Pinned to macos-15 (not macos-latest): the macos-26/Xcode 26 SDK
-            # removed AGL.framework, which Qt 6.8.3's bundled
-            # FindWrapOpenGL.cmake still links unconditionally, breaking the
-            # libVTextEdit.dylib link ("ld: framework 'AGL' not found").
-            # Qt fixed this in 6.8.4 / 6.9.2+ (QTBUG-137687); once the pinned Qt
-            # is bumped past that, this can return to macos-latest.
-            os: macos-15
+            # Qt 6.9.3 includes the QTBUG-137687 fix (FindWrapOpenGL.cmake no
+            # longer unconditionally links the macOS AGL.framework that Xcode 26
+            # removed), so macos-latest is safe again.
+            os: macos-latest
             arch: universal
-            qt: 6.8.3
+            qt: 6.9.3
 
     runs-on: ${{matrix.config.os}}
 
@@ -92,7 +89,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: ${{runner.workspace}}/Qt
-          key: ${{ runner.os }}-QtCache-6.8
+          key: ${{ runner.os }}-QtCache-6.9
 
       - name: Install Qt
         uses: jurplel/install-qt-action@v3

.github/workflows/ci-win.yml

@@ -32,7 +32,7 @@ jobs:
             arch: win64_msvc2022_64
             vs_version: 2022
             vs_cmd: "C:\\Program Files\\Microsoft Visual Studio\\2022\\Enterprise\\VC\\Auxiliary\\Build\\vcvars64.bat"
-            qt: 6.8.3
+            qt: 6.9.3
             qt_modules: "qtwebengine qtwebchannel qtpositioning qtpdf qtimageformats qt5compat"
             qt_tools: tools_opensslv3_x64
             qt_major: 6

CLAUDE.md

@@ -170,4 +170,4 @@ When migrating legacy code to new architecture:
 
 ## CI
 
-GitHub Actions workflows in `.github/workflows/`: `ci-win.yml`, `ci-linux.yml`, `ci-macos.yml`. Trigger on push/PR to `master`. Windows builds use Ninja + MSVC 2022 with Qt 6.8.3.
+GitHub Actions workflows in `.github/workflows/`: `ci-win.yml`, `ci-linux.yml`, `ci-macos.yml`. Trigger on push/PR to `master`. Windows builds use Ninja + MSVC 2022 with Qt 6.9.3.

scripts/pack-win.ps1

@@ -8,7 +8,7 @@
 #   .\scripts\pack-win.ps1                    # auto-detect everything
 #   .\scripts\pack-win.ps1 -Clean             # wipe build dir first
 #   .\scripts\pack-win.ps1 -BuildOnly         # build but skip pack
-#   .\scripts\pack-win.ps1 -QtDir "C:\Qt\6.8.3\msvc2022_64"
+#   .\scripts\pack-win.ps1 -QtDir "C:\Qt\6.9.3\msvc2022_64"
 #   .\scripts\pack-win.ps1 -VcVars "...\vcvars64.bat"
 
 param(