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Felgo Updates

Felgo Update Guide

After installing the Felgo SDK, you can receive updates with the Maintenance Tool. The Maintenance Tool is located at the installation directory of your Felgo SDK and is called MaintenanceTool.

Run this application and select Update components to check if any updates are available for the Felgo SDK.

You then see a list of packages for which an update is available. To update the packages, click Continue and then Update on the following screen. After all packages were downloaded and installed, you can close the Maintenance Tool by clicking the Done button.

Note: After you updated the SDK, you need to Clean your project so the updated Felgo version is used. To clean your project, open Qt Creator and select Clean Project from the Build menu. Afterwards you can run your project and the updated Felgo version is used.

With your Felgo signup, you get access to all Felgo updates for free. Some of the components are available exclusively for Felgo customers - to upgrade to a Felgo license click here.

Latest Felgo Release

v 4.0.1 (2023-03-15)

Highlights Blog Post: Release 4.0.1: Support for Apple Sign In and Android Content URI, Improved Felgo Live Permissions on macOS

Felgo 4.0.1 adds support for the Apple Sign In Plugin, allows you to use content:// URIs on Android in Qt Quick, and includes better app permission handling for Felgo Live on macOS.

Felgo 4.0.1 comes as a free update for all Felgo developers.

Update Now (New to Felgo? Get started here)

New Features

  • The Apple Sign In Plugin with the AppleSignIn and AppleSignInButton QML types is now available on iOS.
     import QtQuick
     import Felgo
     App {
       AppPage {
         Column {
           AppleSignInButton {
             id: appleSignInButton
           AppText {
             text: !appleSignInButton.visible
                   ? "Apple Sign-in unavailable."
                   : appleSignInButton.appleSignIn.isLoggedIn
                     ? "Signed in with Apple user: " + appleSignInButton.appleSignIn.userName
                     : "Click above button to sign in with Apple user"
  • The AdMobBannerNative type is now available to display ad banners inline. To use the type on iOS, it is required to change the graphics API to OpenGL:
     #include <QQuickWindow>
     int main(int argc, char *argv[])
       // Set OpenGL rendering
       QApplication app(argc, argv);


  • You can now use Android content:// URIs as source for an AppImage, for example when accessing and showing the NativeUtils::galleryPhotos or using the ImagePicker.
     import Felgo
     import QtQuick
     App {
       NavigationStack {
         AppPage {
           id: page
           title: qsTr("Choose Photos")
           // right bar item to accept selection
           rightBarItem: TextButtonBarItem {
             text: "Next"
             enabled: imagePicker.selectedCount > 0
             // your app will probably pop the photo selection page from the stack to move on
             // this example only logs the selected photos
             onClicked: console.debug("SELECTED:", JSON.stringify(imagePicker.selection))
           // image picker view for photo selection
           ImagePicker {
             id: imagePicker
             anchors.fill: parent
  • The Felgo Live Client now better handles app permissions on macOS Monterey and later.


  • The Qt Bluetooth APIs do no longer require the Qt Location permission on Android 12 or later.
  • Stability improvements for Felgo Live and QML Hot Reload.

v 4.0.0 (2023-02-09)

Highlights Blog Post: Release 4.0: Create Beautiful Cross-Platform Apps with Qt 6

Felgo 4.0.0 makes it possible to develop Felgo apps with all the latest features of Qt 6.4.1. The release also brings support for the CMake build system, includes a custom build of the Qt Location module and updates Felgo controls to use Qt Quick Controls 2.

Felgo 4.0.0 comes as a free update for all Felgo developers and can be installed side-by-side to Felgo 3.

You can download the Felgo 4 installer here.


The switch to Felgo 4 and Qt 6 comes with many different changes for various Qt Modules and Felgo components. The following list summarizes the most important topics:

  • Build System Update to CMake: For Qt 6 and Felgo 4, CMake is now the preferred build system. You can keep your qmake project configuration initially, but it is recommended to upgrade existing Felgo projects to the CMake build system. This is because some features, like multi-ABI builds on Android, are not supported with qmake and Qt does not plan to further develop and improve qmake support.

  • Felgo Controls with Qt Quick Controls 2.0: Qt Quick Controls 1 are no longer available with Qt 6. Thus, all Felgo controls now use Qt Quick Controls 2. However, the base Qt Quick Controls now come with an own icon property. As a result, it is now required to use a new iconType property for configuring an IconType in Felgo controls. This affects various QML types like AppIcon, AppButton, AppCheckBox, AppActivityIndicator, ActivityIndicatorBarItem, FloatingActionButton, IconButton, IconButtonBarItem, NavigationItem or SearchBar. In addition, the Felgo Page, ScrollIndicator and Icon types are now renamed to AppPage, AppScrollIndicator and AppIcon to avoid naming collisions with the respective Qt types:
     import Felgo
     import QtQuick
     App {
       Navigation {
         NavigationItem {
           title: "Home"
           iconType: IconType.home             // Change icon to iconType
           AppPage {                           // Change Page to AppPage here
             Column {
               anchors.centerIn: parent
               AppButton {
                 text: "Click me"
                 iconType: IconType.handodown  // Change icon to iconType
                 text: "Enabled?"
                 iconType: IconType.adjust     // Change icon to iconType
  • Qt Location and Maps with MapLibreGL: The Qt Location module is currently not available with Qt 6. Felgo 4 thus provides a custom build of the module to support map features with the AppMap type. However, due to changes in Qt's rendering system, the MapBoxGL Plugin is not available anymore. As an alternative for rendering vector maps, Felgo 4 includes a new Maplibre GL Plugin. Other map plugins for tile-based rendering of maps are supported like before.

  • Changes to Qt Modules and QML: Qt 6 brings many changes for various Qt Modules and also includes some differences for Qt Quick and QML. For example, you no longer have to specify module version numbers for import statements. Also, Qt Quick now operates in high-dpi mode by default and some of the QML and C++ types have a slightly different API. See the Qt documentation for a full list of Changes to Modules in Qt 6 and a Qt 6 Porting Guide.

For detailed information on all the changes and how to migrate your Felgo 3 project, see the Felgo 4 update guide: Felgo 4 Update Guide and Project Migration for Qt 6.

Apart from the necessary changes for migration to Qt 6, the Felgo 4 release also includes new features, improvements and fixes for the Felgo SDK, which are listed in the sections below.

New Features


  • The AppButton now allows setting the (background, border & text) color for the hovered state.


  • Fixes incorrect AppToolTip position when using long bubble texts.
  • Fixes missing placeholder text when canceling AppTextEdit input on iOS with an empty field.
  • The Notification Plugin now supports Android 12+ (API level 31+) devices and build targets.
  • The NativeUtils::share functionality for iOS and Android is updated to properly support sharing text, web links or files with the native share dialog of the latest OS versions.
  • Fixes behavior problems when combining the PullToRefreshHandler with a ListView that has additional top spacing from a header item or top margin configuration.
  • Fixes the App::tablet property to already deliver a correct value when used in the Component.onCompleted handler of the app window.

Older Felgo Releases

Felgo 3 (Qt 5.15) Releases

See the Felgo 3 Releases for more information on the currently available version of Felgo 3.

Felgo 3.10 with Qt 5.15 can still be used independent from Felgo 4. It is possible to install Felgo 3 side-by-side with Felgo 4 or other Qt installations.

You can thus keep your Felgo 3 project until you are ready to migrate to Qt 6 and Felgo 4.

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