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Merge pull request #707 from Syncfusion-Content/development
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‎Flutter/cartesian-charts/axis-customization.md

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{% endhighlight %}
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{% endtabs %}
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### Visible minimum
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### Initial visible minimum
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The [`visibleMinimum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/NumericAxis/visibleMinimum.html) property is used to set the minimum visible range of an axis. When panning is enabled, you can pan to the actual minimum range of an axis.
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The [`initialVisibleMinimum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/NumericAxis/initiaVisibleMinimum.html) property defines the lowest data point initially displayed on an axis. When panning is enabled, you can pan to the actual minimum range of an axis. This property only works at load time. Use the controller to programmatically change the visible minimum.
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{% tabs %}
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{% highlight dart hl_lines="8" %}
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child: Container(
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child: SfCartesianChart(
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primaryXAxis: NumericAxis(
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visibleMinimum: 2
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initialVisibleMinimum: 2
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)
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)
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)
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Also refer [`minimum`](./axis-types) and [`maximum`](./axis-types) range of an axis.
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### Visible maximum
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### Initial visible maximum
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The [`visibleMaximum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/NumericAxis/visibleMaximum.html) property is used to set the minimum visible range of an axis. When panning is enabled, you can pan to the actual maximum range of an axis.
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The [`visibleMaximum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/NumericAxis/initialVisibleMaximum.html) property defines the highest data point finally displayed on an axis. When panning is enabled, you can pan to the actual maximum range of an axis. This property only works at load time. Use the controller to programmatically change the visible maximum.
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{% tabs %}
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{% highlight dart hl_lines="8" %}
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child: Container(
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child: SfCartesianChart(
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primaryXAxis: NumericAxis(
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visibleMaximum: 4
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initialVisibleMaximum: 4
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)
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)
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)
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## Auto range calculation
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Determines the value axis range, based on the visible data points or based on the overall data points available in chart.
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By default, value axis range will be calculated automatically based on the visible data points on dynamic changes. The visible data points are changed on performing interactions like pinch zooming, selection zooming, panning and also on specifying [`visibleMinimum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/NumericAxis/visibleMinimum.html) and [`visibleMaximum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/NumericAxis/visibleMaximum.html) values.
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By default, value axis range will be calculated automatically based on the visible data points on dynamic changes. The visible data points are changed on performing interactions like pinch zooming, selection zooming, panning and also on specifying [`initialVisibleMinimum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/NumericAxis/initialVisibleMinimum.html) and [`initialVisibleMaximum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/NumericAxis/initialVisibleMaximum.html) values.
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To toggle this functionality, [`anchorRangeToVisiblePoints`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/ChartAxis/anchorRangeToVisiblePoints.html) property can be used. i.e. on setting this property to false, the value axis range will be calculated based on all the data points in chart irrespective of visible points.
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## RangeController
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The [`rangeController`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/ChartAxis/rangeController.html) property is used to set the maximum and minimum values for the chart in the viewport. In the minimum and maximum properties of the axis, you can specify the minimum and maximum values with respect to the entire data source. In the visibleMinimum and visibleMaximum properties, you can specify the values to be viewed in the viewed port i.e. range controller's start and end values respectively.
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The [`rangeController`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/ChartAxis/rangeController.html) property defines the lowest and highest data points that are displayed on an axis.
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If the same [RangeController] instance is used in both the chart axis and the [RangeSelector], the chart's visible range will be updated based on the range selected in the [RangeSelector].
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Here you need to specify the [`minimum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/DateTimeAxis/minimum.html), [`maximum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/DateTimeAxis/maximum.html), [`visibleMinimum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/DateTimeAxis/visibleMinimum.html), and [`visibleMaximum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/DateTimeAxis/visibleMaximum.html) properties to the axis and the axis values will be visible with respect to visibleMinimum and visibleMaximum properties.
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Here you need to specify the [`minimum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/DateTimeAxis/minimum.html), [`maximum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/DateTimeAxis/maximum.html), [`initialVisibleMinimum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/DateTimeAxis/initialVisibleMinimum.html), and [`initialVisibleMaximum`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/DateTimeAxis/initiaVisibleMaximum.html) properties to the axis and the axis values will be visible with respect to initialVisibleMinimum and initialVisibleMaximum properties.
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{% tabs %}
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{% highlight dart %}
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primaryXAxis: DateTimeAxis(
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maximum: DateTime(2020, 1, 1),
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minimum: DateTime(2020, 3, 30),
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// set maximum value from the range controller
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visibleMaximum: rangeController.end,
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// set minimum value from the range controller
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visibleMinimum: rangeController.start,
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initialVisibleMinimum: rangeController.start,
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rangeController: rangeController),
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primaryYAxis: NumericAxis(),
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series: <SplineSeries<ChartSampleData, DateTime>>[
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#### See Also
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* [Rendering a particular part of a data using visible minimum and visible maximum in the Cartesian chart](https://support.syncfusion.com/kb/article/9809/how-to-render-particular-part-of-a-data-in-cartesian-charts-sfcartesianchart).
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* [Rendering a particular part of a data in the Cartesian chart](https://support.syncfusion.com/kb/article/9809/how-to-render-particular-part-of-a-data-in-cartesian-charts-sfcartesianchart).
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* [Creating a flutter master-detail chart using range controller in the Cartesian chart](https://support.syncfusion.com/kb/article/10796/how-to-create-flutter-master-detail-chart-using-the-cartesian-charts-widget).
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‎Flutter/cartesian-charts/callbacks.md

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>**Note**
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* The slope values of the polynomial trendline type will depend on the polynomial order. The intercept, slope, and rSquaredValue are not applicable for moving average trendline type.
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## onRendererCreated
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## onRendererCreated (Series)
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Triggers when the series renderer is created. This callback can be used to obtain the [`ChartSeriesController`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/ChartSeriesController-class.html) instance, which is used to access the the public methods in the series.
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Triggers when the series renderer is created. This callback can be used to obtain the [`ChartSeriesController`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/ChartSeriesController-class.html) instance, which is used to:
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* Add, remove, or replace the data points programmatically.
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* pixelToPoint and pointToPixel conversions.
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* Restart the loading animation.
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{% tabs %}
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{% endhighlight %}
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## onRendererCreated (Axis)
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Triggers when the axis renderer is created and attached to its parent. It can be used to obtain the axis-wise [AxisController] which has the current visible range details and provides an option to change the visible range programmatically. Here, you can customize the following properties.
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* [`visibleMinimum`] - to gets and sets the visible minimum of the axis.
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* [`visibleMaximum`] - to gets and sets the visible maximum of the axis.
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* [`zoomFactor`] - to gets and sets the zoom factor of the axis.
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* [`zoomPosition`] - to gets and sets the zoom position of the axis.
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* [`previousZoomFactor`] - to gets the previous zoom factor of the axis.
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* [`previousZoomPosition`] - to gets the previous zoom position of the axis.
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{% tabs %}
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{% highlight dart %}
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NumericAxisController? _xAxisController;
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final List<ChartData> chartData = <ChartData>[
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ChartData(1, 24),
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ChartData(2, 20),
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ChartData(3, 23),
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ChartData(4, 57),
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ChartData(5, 30),
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ChartData(6, 41),
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];
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@override
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Widget build(BuildContext context) {
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return Column(
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children: <Widget>[
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SfCartesianChart(
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primaryXAxis: NumericAxis(
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// Initialize the onRendererCreated.
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onRendererCreated: (NumericAxisController controller) {
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_xAxisController = controller;
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},
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// Sets the initialVisibleMinimum.
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initialVisibleMinimum: 3,
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// Sets the initialVisibleMaximum.
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initialVisibleMaximum: 5,
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),
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series: <LineSeries<ChartData, num>>[
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LineSeries<ChartData, num>(
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dataSource: chartData,
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xValueMapper: (ChartData chartData, _) => chartData.x,
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yValueMapper: (ChartData chartData, _) => chartData.y,
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),
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],
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),
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ElevatedButton(
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onPressed: () {
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// Update the initialVisibleMaximum.
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_xAxisController?.visibleMaximum = 1;
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// Update the initialVisibleMinimum.
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_xAxisController?.visibleMinimum = 6;
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},
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child: Text('Update Visible Range'),
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)
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],
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);
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}
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class ChartData {
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ChartData(this.x, this.y);
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final num x;
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final double? y;
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}
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{% endhighlight %}
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{% endtabs %}
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## onChartTouchInteractionDown
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Triggers when touched or clicked on the chart area. You can get the tapped region using the [`position`](https://pub.dev/documentation/syncfusion_flutter_charts/latest/charts/ChartTouchInteractionArgs/position.html) argument.

‎Flutter/installation/linux-installer/how-to-install.md

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![License Agreement](images/Linux_Installer2.png)
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N> The Unlock key is not required to install the Linux installer. The Syncfusion Linux installer can be used for development purposes without registering the Unlock key.
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N> The Unlock key is not required to install the Linux installer.
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4. You can launch the demo source and use the NuGet packages included in the Linux installer.
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5. Run the following command in linux machine to deploy the ASP.NET Core samples
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**dotnet restore projectname -s \nuget** in order to restore.
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## License key registration in samples
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After the installation, the license key is required to register the demo source that is included in the Linux installer. To learn about the steps for license registration for the Flutter Linux installer, please refer to this.

‎Flutter/system-requirements.md

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<tr>
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<td>Stable</td>
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<td style="text-align:center">
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<a href="https://storage.googleapis.com/flutter_infra_release/releases/stable/windows/flutter_windows_3.10.0-stable.zip">v3.10.0</a>
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<a href="https://storage.googleapis.com/flutter_infra_release/releases/stable/windows/flutter_windows_3.16.0-stable.zip">v3.16.0</a>
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</table>

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