SPT-AKI-Installer/SPTInstaller/Views/InstallerUpdateView.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:cc="using:SPTInstaller.CustomControls"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="SPTInstaller.Views.InstallerUpdateView">
    <Grid RowDefinitions="10,Auto,*,10" ColumnDefinitions="10,*,10">
        <StackPanel Grid.Row="1" Grid.Column="1" IsVisible="{Binding UpdateInfo.UpdateAvailable}">
            <Label Content="{Binding UpdateInfo.NewVersion, StringFormat='{}Installer Change Log for {0}'}" FontSize="18" FontWeight="SemiBold"
            />
            <Separator Margin="0 10" Padding="0" Background="{StaticResource SPT_Yellow}"/>
            <ScrollViewer MaxHeight="250" Background="#323232">
                <TextBlock Text="{Binding UpdateInfo.ChangeLog}"
                           TextWrapping="Wrap" MinHeight="100"
                           Margin="10"
                />
            </ScrollViewer>
        </StackPanel>
        <cc:UpdateButton Grid.Row="2" Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center"
                         IsIndeterminate="{Binding UpdateInfo.CheckingForUpdates}"
                         InfoText="{Binding UpdateInfo.UpdateInfoText}"
                         Updating="{Binding UpdateInfo.Updating}"
                         DismissCommand="{Binding NotNowCommand}"
                         UpdateCommand="{Binding UpdateInstallCommand}"
                         DownloadProgress="{Binding UpdateInfo.DownloadProgress}"
                         UpdateAvailable="{Binding UpdateInfo.UpdateAvailable}"
                         CheckingForUpdate="{Binding UpdateInfo.CheckingForUpdates}"
        />
    </Grid>
</UserControl>