diff --git a/.github/actions/qt-android/action.yml b/.github/actions/qt-android/action.yml
index 9bc90bf3325..ee871034d9b 100644
--- a/.github/actions/qt-android/action.yml
+++ b/.github/actions/qt-android/action.yml
@@ -10,7 +10,7 @@ inputs:
   version:
     description: Qt Version
     required: false
-    default: 6.6.3
+    default: 6.7.3
   abis:
     description: ABIs to Build
     required: false
@@ -27,15 +27,15 @@ runs:
     - name: Setup Android Environment
       uses: android-actions/setup-android@v3
       with:
-        cmdline-tools-version: 11076708
-        packages: 'platform-tools platforms;android-34 build-tools;34.0.0' # ndk;25.1.8937393'
+        cmdline-tools-version: 12266719
+        packages: 'platform-tools platforms;android-34 build-tools;34.0.0' # ndk;26.1.10909125'
         log-accepted-android-sdk-licenses: false
 
     - name: Install Android NDK
       uses: nttld/setup-ndk@v1
       id: setup-ndk
       with:
-        ndk-version: r25b
+        ndk-version: r26b
         add-to-path: false
 
     - run: |
diff --git a/.github/workflows/android-linux.yml b/.github/workflows/android-linux.yml
index e931308c1a5..8828940c933 100644
--- a/.github/workflows/android-linux.yml
+++ b/.github/workflows/android-linux.yml
@@ -33,7 +33,7 @@ jobs:
 
     env:
       ARTIFACT: QGroundControl.apk
-      QT_VERSION: 6.6.3
+      QT_VERSION: 6.7.3
       GST_VERSION: 1.22.12
       QT_ANDROID_KEYSTORE_PATH: ${{ github.workspace }}/deploy/android/android_release.keystore
       QT_ANDROID_KEYSTORE_ALIAS: QGCAndroidKeyStore
@@ -69,7 +69,7 @@ jobs:
         uses: ./.github/actions/qt-android
         with:
           host: linux
-          arch: gcc_64
+          arch: linux_gcc_64
           version: ${{ env.QT_VERSION }}
           abis: ${{ env.QT_ANDROID_ABIS }}
 
diff --git a/.github/workflows/android-macos.yml b/.github/workflows/android-macos.yml
index 841560402f6..6dd1fe9120a 100644
--- a/.github/workflows/android-macos.yml
+++ b/.github/workflows/android-macos.yml
@@ -17,7 +17,7 @@ jobs:
 
     env:
       ARTIFACT: QGroundControl.apk
-      QT_VERSION: 6.6.3
+      QT_VERSION: 6.7.3
       GST_VERSION: 1.22.12
       QT_ANDROID_KEYSTORE_PATH: ${{ github.workspace }}/deploy/android/android_release.keystore
       QT_ANDROID_KEYSTORE_ALIAS: QGCAndroidKeyStore
diff --git a/.github/workflows/android-windows.yml b/.github/workflows/android-windows.yml
index d237fbea70b..0d15ea7b332 100644
--- a/.github/workflows/android-windows.yml
+++ b/.github/workflows/android-windows.yml
@@ -33,7 +33,7 @@ jobs:
 
     env:
       ARTIFACT: QGroundControl.apk
-      QT_VERSION: 6.6.3
+      QT_VERSION: 6.7.3
       GST_VERSION: 1.22.12
       QT_ANDROID_KEYSTORE_PATH: ${{ github.workspace }}/deploy/android/android_release.keystore
       QT_ANDROID_KEYSTORE_ALIAS: QGCAndroidKeyStore
diff --git a/.github/workflows/ios.yml b/.github/workflows/ios.yml
index ddb19719d75..e746cf6d8c3 100644
--- a/.github/workflows/ios.yml
+++ b/.github/workflows/ios.yml
@@ -17,7 +17,7 @@ jobs:
 
     env:
       ARTIFACT: QGroundControl.app
-      QT_VERSION: 6.6.3
+      QT_VERSION: 6.7.3
       GST_VERSION: 1.22.12
 
     steps:
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 61b210a52db..e14e2c0323c 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -35,7 +35,7 @@ jobs:
 
     env:
       ARTIFACT: QGroundControl-x86_64.AppImage
-      QT_VERSION: 6.6.3
+      QT_VERSION: 6.7.3
       GST_VERSION: 1.22.12
 
     steps:
@@ -96,7 +96,7 @@ jobs:
           aqtversion: ==3.1.*
           host: linux
           target: desktop
-          arch: gcc_64
+          arch: linux_gcc_64
           dir: ${{ runner.temp }}
           modules: qtcharts qtlocation qtpositioning qtspeech qt5compat qtmultimedia qtserialport qtimageformats qtshadertools qtconnectivity qtquick3d qtsensors
           cache: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 1345b07aaca..3c54eb08a97 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -35,7 +35,7 @@ jobs:
 
     env:
       ARTIFACT: QGroundControl.dmg
-      QT_VERSION: 6.6.3
+      QT_VERSION: 6.7.3
       GST_VERSION: 1.22.12
 
     steps:
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 156f1687c16..e1a10006985 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -36,7 +36,7 @@ jobs:
 
     env:
       ARTIFACT: QGroundControl-installer.exe
-      QT_VERSION: 6.6.3
+      QT_VERSION: 6.7.3
       GST_VERSION: 1.22.12
       SCCACHE_GHA_ENABLED: "true"
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 399af9ee58d..5fd5f46adb1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -193,9 +193,11 @@ if(NOT Qt6LinguistTools_DIR)
     set(Qt6LinguistTools_DIR ${QT_HOST_PATH}/lib/cmake/Qt6LinguistTools)
 endif()
 
-# Require 6.6.3 because otherwise libQt6QuickControls2Basic.so.6 &
-# libQt6QuickControls2BasicStyleImpl.so.6 are missing.
-qt_standard_project_setup(REQUIRES 6.6.3)
+qt_standard_project_setup(
+    REQUIRES 6.7.3
+    SUPPORTS_UP_TO 6.7.3
+    I18N_SOURCE_LANGUAGE en
+)
 
 qt_policy(
     SET QTP0001 NEW
@@ -289,10 +291,9 @@ qt_add_executable(${PROJECT_NAME}
 )
 
 if(Qt6LinguistTools_FOUND)
-    # TODO: Update to new qt_add_translations form in Qt6.7
     file(GLOB TS_SOURCES ${CMAKE_SOURCE_DIR}/translations/qgc_*.ts)
     set_source_files_properties(${TS_SOURCES} PROPERTIES OUTPUT_LOCATION "${CMAKE_BINARY_DIR}/i18n")
-    qt_add_translations(${PROJECT_NAME}
+    qt_add_translations(${CMAKE_PROJECT_NAME}
         TS_FILES ${TS_SOURCES}
         RESOURCE_PREFIX "/"
         LUPDATE_OPTIONS -no-obsolete
diff --git a/deploy/docker/Dockerfile-build-ubuntu b/deploy/docker/Dockerfile-build-ubuntu
index 19f00a1064f..044106d89b8 100644
--- a/deploy/docker/Dockerfile-build-ubuntu
+++ b/deploy/docker/Dockerfile-build-ubuntu
@@ -1,6 +1,6 @@
 FROM ubuntu:20.04
 
-ARG QT_VERSION=6.6.3
+ARG QT_VERSION=6.7.3
 ARG QT_MODULES="qtcharts qtlocation qtpositioning qtspeech qt5compat qtmultimedia qtserialport qtimageformats qtshadertools qtconnectivity qtquick3d qtsensors"
 
 ENV DEBIAN_FRONTEND noninteractive
diff --git a/deploy/vagrant/.vagrantconfig.yml b/deploy/vagrant/.vagrantconfig.yml
index cd855452387..bfd0bcd04ac 100644
--- a/deploy/vagrant/.vagrantconfig.yml
+++ b/deploy/vagrant/.vagrantconfig.yml
@@ -3,10 +3,10 @@ configs:
         'qt_deps_unpack_parent_dir': '/home/vagrant'
 
         'qt_deps_unpack_dir': '/home/vagrant/Qt'
-        'qt_deps_bin_unpack_dir': '/home/vagrant/Qt/6.6.3/gcc_64/bin'
-        'qt_deps_lib_unpack_dir': '/home/vagrant/Qt/6.6.3/gcc_64/lib'
-        'qt_deps_plugins_unpack_dir': '/home/vagrant/Qt/6.6.3/gcc_64/plugins'
-        'qt_deps_qml_unpack_dir': '/home/vagrant/Qt/6.6.3/gcc_64/qml'
+        'qt_deps_bin_unpack_dir': '/home/vagrant/Qt/6.7.3/gcc_64/bin'
+        'qt_deps_lib_unpack_dir': '/home/vagrant/Qt/6.7.3/gcc_64/lib'
+        'qt_deps_plugins_unpack_dir': '/home/vagrant/Qt/6.7.3/gcc_64/plugins'
+        'qt_deps_qml_unpack_dir': '/home/vagrant/Qt/6.7.3/gcc_64/qml'
 
         'project_root_dir': '/vagrant'
 
diff --git a/docs/en/qgc-dev-guide/getting_started/index.md b/docs/en/qgc-dev-guide/getting_started/index.md
index 4af9646c633..b72c5e9eb8a 100644
--- a/docs/en/qgc-dev-guide/getting_started/index.md
+++ b/docs/en/qgc-dev-guide/getting_started/index.md
@@ -1,5 +1,5 @@
 ---
-qt_version: 6.6.3
+qt_version: 6.7.3
 ---
 
 # Getting Started with Source and Builds
diff --git a/tools/setup/install-qt-debian.sh b/tools/setup/install-qt-debian.sh
index 6ba4521b86c..1f6dad74551 100755
--- a/tools/setup/install-qt-debian.sh
+++ b/tools/setup/install-qt-debian.sh
@@ -1,10 +1,10 @@
 #!/usr/bin/env bash
 
-QT_VERSION="${QT_VERSION:-6.6.3}"
+QT_VERSION="${QT_VERSION:-6.7.3}"
 QT_PATH="${QT_PATH:-/opt/Qt}"
 QT_HOST="${QT_HOST:-linux}"
 QT_TARGET="${QT_TARGET:-desktop}"
-QT_ARCH="${QT_ARCH:-gcc_64}"
+QT_ARCH="${QT_ARCH:-linux_gcc_64}"
 QT_MODULES="${QT_MODULES:-qtcharts qtlocation qtpositioning qtspeech qt5compat qtmultimedia qtserialport qtimageformats qtshadertools qtconnectivity qtquick3d qtsensors}"
 
 set -e
diff --git a/translations/qgc-lupdate.sh b/translations/qgc-lupdate.sh
index 6923472a05f..b3eee1cd885 100755
--- a/translations/qgc-lupdate.sh
+++ b/translations/qgc-lupdate.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
 # This script will update both the Qt and Json string translation files.
-QT_PATH=~/Qt/6.6.3/macos/bin
+QT_PATH=~/Qt/6.7.3/macos/bin
 $QT_PATH/lupdate ../src -ts qgc.ts -no-obsolete
 python3 qgc-lupdate-json.py