diff --git a/.github/workflows/CI-windows.yml b/.github/workflows/CI-windows.yml
index 71d72025cf9..526a18df365 100644
--- a/.github/workflows/CI-windows.yml
+++ b/.github/workflows/CI-windows.yml
@@ -25,7 +25,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-2022, windows-2025]
-        qt_ver: [6.10.0]
+        qt_ver: [6.11.1]
       fail-fast: false
 
     runs-on: ${{ matrix.os }}
@@ -124,7 +124,7 @@ jobs:
       - name: Install Qt
         uses: jurplel/install-qt-action@v4
         with:
-          version: 6.10.0
+          version: 6.11.1
           modules: 'qtcharts'
           setup-python: 'false'
           cache: true
diff --git a/.github/workflows/clang-tidy.yml b/.github/workflows/clang-tidy.yml
index c4f8cc0cf6b..29841eabd93 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: 6.10.0
+      QT_VERSION: 6.11.1
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/iwyu.yml b/.github/workflows/iwyu.yml
index 3b972dca443..ba0fd207071 100644
--- a/.github/workflows/iwyu.yml
+++ b/.github/workflows/iwyu.yml
@@ -2,10 +2,7 @@
 # Environment reference https://help.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners
 name: include-what-you-use
 
-on:
-  schedule:
-    - cron: '0 0 * * 0'
-  workflow_dispatch:
+on: [push, pull_request]
 
 permissions:
   contents: read
@@ -36,7 +33,7 @@ jobs:
       image: ${{ matrix.image }}
 
     env:
-      QT_VERSION: 6.10.0
+      QT_VERSION: 6.11.1
 
     steps:
       - uses: actions/checkout@v4
@@ -196,7 +193,7 @@ jobs:
     if: ${{ github.repository_owner == 'cppcheck-opensource' }}
 
     env:
-      QT_VERSION: 6.10.0
+      QT_VERSION: 6.11.1
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/release-windows.yml b/.github/workflows/release-windows.yml
index f59e77a2dca..3168fabd70f 100644
--- a/.github/workflows/release-windows.yml
+++ b/.github/workflows/release-windows.yml
@@ -2,13 +2,7 @@
 # Environment reference https://help.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners
 name: release-windows
 
-on:
-  push:
-    tags:
-      - '2.*'
-  schedule:
-    - cron:  '0 0 * * *'
-  workflow_dispatch:
+on: [pull_request, push]
 
 permissions:
   contents: read
@@ -28,7 +22,7 @@ jobs:
       PYTHON_VERSION: 3.14
       # see https://www.pcre.org/original/changelog.txt
       PCRE_VERSION: 8.45
-      QT_VERSION: 6.10.0
+      QT_VERSION: 6.11.1
       BOOST_MINOR_VERSION: 89
 
     steps:
diff --git a/.github/workflows/sanitizers.yml b/.github/workflows/sanitizers.yml
index d7ff31939d0..5739fcb3153 100644
--- a/.github/workflows/sanitizers.yml
+++ b/.github/workflows/sanitizers.yml
@@ -42,7 +42,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 6.10.0
+      QT_VERSION: 6.11.1
       ASAN_OPTIONS: detect_stack_use_after_return=1
       TSAN_OPTIONS: halt_on_error=1
       UBSAN_OPTIONS: print_stacktrace=1:halt_on_error=1:report_error_type=1
diff --git a/.github/workflows/selfcheck.yml b/.github/workflows/selfcheck.yml
index dcdf8bfbdd3..ef57b3e4d34 100644
--- a/.github/workflows/selfcheck.yml
+++ b/.github/workflows/selfcheck.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 6.10.0
+      QT_VERSION: 6.11.1
 
     steps:
       - uses: actions/checkout@v4
diff --git a/releasenotes.txt b/releasenotes.txt
index 4fb45b90070..8cf03507e5e 100644
--- a/releasenotes.txt
+++ b/releasenotes.txt
@@ -28,4 +28,5 @@ Other:
 - Moved source code from https://github.com/danmar/cppcheck to https://github.com/cppcheck-opensource/cppcheck
 - The official Windows binary is now built with Visual Studio 2026.
 - Updated simplecpp to 1.7.0.
+- Updated Qt to 6.11.1 (official binary only).
 -