diff --git a/.github/workflows/CI-windows.yml b/.github/workflows/CI-windows.yml
index d5d4b5e4992..55be78ee06e 100644
--- a/.github/workflows/CI-windows.yml
+++ b/.github/workflows/CI-windows.yml
@@ -27,7 +27,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-2022, windows-2025]
-        qt_ver: [6.9.1]
+        qt_ver: [6.10.0]
       fail-fast: false
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/asan.yml b/.github/workflows/asan.yml
index cbca3cacabc..9aaee2e719f 100644
--- a/.github/workflows/asan.yml
+++ b/.github/workflows/asan.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 6.9.1
+      QT_VERSION: 6.10.0
       ASAN_OPTIONS: detect_stack_use_after_return=1
       # TODO: figure out why there are cache misses with PCH enabled
       CCACHE_SLOPPINESS: pch_defines,time_macros
diff --git a/.github/workflows/clang-tidy.yml b/.github/workflows/clang-tidy.yml
index 574939e29eb..7b2c4f4e2c7 100644
--- a/.github/workflows/clang-tidy.yml
+++ b/.github/workflows/clang-tidy.yml
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 6.9.1
+      QT_VERSION: 6.10.0
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/iwyu.yml b/.github/workflows/iwyu.yml
index 847f1f734dd..649991f9373 100644
--- a/.github/workflows/iwyu.yml
+++ b/.github/workflows/iwyu.yml
@@ -39,7 +39,7 @@ jobs:
       image: ${{ matrix.image }}
 
     env:
-      QT_VERSION: 6.9.1
+      QT_VERSION: 6.10.0
 
     steps:
       - uses: actions/checkout@v4
@@ -196,7 +196,7 @@ jobs:
     if: ${{ github.repository_owner == 'danmar' }}
 
     env:
-      QT_VERSION: 6.9.1
+      QT_VERSION: 6.10.0
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/release-windows.yml b/.github/workflows/release-windows.yml
index 2b5492702b8..182bd7bcd44 100644
--- a/.github/workflows/release-windows.yml
+++ b/.github/workflows/release-windows.yml
@@ -27,7 +27,7 @@ jobs:
     env:
       # see https://www.pcre.org/original/changelog.txt
       PCRE_VERSION: 8.45
-      QT_VERSION: 6.9.1
+      QT_VERSION: 6.10.0
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/selfcheck.yml b/.github/workflows/selfcheck.yml
index 3e2be2c1ae6..411f0298bbb 100644
--- a/.github/workflows/selfcheck.yml
+++ b/.github/workflows/selfcheck.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 6.9.1
+      QT_VERSION: 6.10.0
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/tsan.yml b/.github/workflows/tsan.yml
index 6742f8fa957..248d2187175 100644
--- a/.github/workflows/tsan.yml
+++ b/.github/workflows/tsan.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 6.9.1
+      QT_VERSION: 6.10.0
       TSAN_OPTIONS: halt_on_error=1
       # TODO: figure out why there are cache misses with PCH enabled
       CCACHE_SLOPPINESS: pch_defines,time_macros
diff --git a/.github/workflows/ubsan.yml b/.github/workflows/ubsan.yml
index 7a7755d091a..9ae15148c17 100644
--- a/.github/workflows/ubsan.yml
+++ b/.github/workflows/ubsan.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 6.9.1
+      QT_VERSION: 6.10.0
       UBSAN_OPTIONS: print_stacktrace=1:halt_on_error=1:report_error_type=1
       # TODO: figure out why there are cache misses with PCH enabled
       CCACHE_SLOPPINESS: pch_defines,time_macros
diff --git a/gui/checkthread.cpp b/gui/checkthread.cpp
index 6c83d0006a8..50c1f4ab8d9 100644
--- a/gui/checkthread.cpp
+++ b/gui/checkthread.cpp
@@ -264,7 +264,7 @@ void CheckThread::runAddonsAndTools(const Settings& settings, const FileSettings
                     }
                     f1.close();
                 }
-                f1.open(QIODevice::WriteOnly | QIODevice::Text);
+                (void)f1.open(QIODevice::WriteOnly | QIODevice::Text); // TODO: check result
                 QTextStream out1(&f1);
                 out1 << chksum;
 
diff --git a/gui/fileviewdialog.cpp b/gui/fileviewdialog.cpp
index bebb1f656cb..58ddb2d8109 100644
--- a/gui/fileviewdialog.cpp
+++ b/gui/fileviewdialog.cpp
@@ -62,7 +62,7 @@ void FileViewDialog::loadTextFile(const QString &filename, QTextEdit *edit)
         return;
     }
 
-    file.open(QIODevice::ReadOnly | QIODevice::Text);
+    (void)file.open(QIODevice::ReadOnly | QIODevice::Text); // TODO: check result
     if (!file.isReadable()) {
         QString msg(tr("Could not read the file: %1"));
         msg = msg.arg(filename);
diff --git a/gui/mainwindow.cpp b/gui/mainwindow.cpp
index f7783bbca79..c28f2f714a4 100644
--- a/gui/mainwindow.cpp
+++ b/gui/mainwindow.cpp
@@ -1717,7 +1717,7 @@ void MainWindow::complianceReport()
     }
 
     QTemporaryFile tempResults;
-    tempResults.open();
+    (void)tempResults.open(); // TODO: check result
     tempResults.close();
 
     mUI->mResults->save(tempResults.fileName(), Report::XMLV2, mCppcheckCfgProductName);
diff --git a/releasenotes.txt b/releasenotes.txt
index f77ef681038..0cf4266ef12 100644
--- a/releasenotes.txt
+++ b/releasenotes.txt
@@ -24,4 +24,5 @@ Other:
 - Added make variables `CPPOPTS` to extend existing `CPPFLAGS`.
 - `CPPFLAGS` are not longer being passed to the linker command for `cppcheck` and `testrunner`.
 - Removed deprecated platforms `unix32-unsigned` and `unix64-unsigned`.
+- Updated Qt to 6.10.0 (official Windows release only).
 -
diff --git a/tools/triage/mainwindow.cpp b/tools/triage/mainwindow.cpp
index d231515cf58..ce95ff82d8d 100644
--- a/tools/triage/mainwindow.cpp
+++ b/tools/triage/mainwindow.cpp
@@ -112,7 +112,7 @@ void MainWindow::loadFile()
     if (fileName.isEmpty())
         return;
     QFile file(fileName);
-    file.open(QIODevice::ReadOnly | QIODevice::Text);
+    (void)file.open(QIODevice::ReadOnly | QIODevice::Text); // TODO: check result
     QTextStream textStream(&file);
     load(textStream);
 }