tobitege · tobitege · Jun 7, 2026 · Jun 7, 2026 · Jun 7, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -5,6 +5,21 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.0] - 2026-06-07
+
+### Changed
+
+- Upgraded the desktop app to Avalonia 12 and Flowery.NET 2.0.6.
+- Updated eligible direct NuGet dependencies that were older than seven days, including OpenCvSharp, SkiaSharp, System.Text.Json, System.Drawing.Common, YamlDotNet, LlmTornado, Microsoft.SqlServer.TransactSql.ScriptDom, and MSTest packages.
+- Replaced deprecated Avalonia placeholder APIs across the UI with `PlaceholderText`.
+- Updated fullscreen image viewer window chrome settings for Avalonia 12.
+- Updated MSTest exception assertions for the MSTest 4 assertion API.
+
+### Fixed
+
+- Restored text clipboard copy behavior after Avalonia 12 moved clipboard text helpers to extension methods.
+- Preserved duplicate validation-plugin removal behavior after Avalonia 12 made the binding plugin container non-public.
+
 ## [0.2.3] - 2026-05-18
 
 ### Security

diff --git a/OpenSourceToolkit.AI/OpenSourceToolkit.AI.csproj b/OpenSourceToolkit.AI/OpenSourceToolkit.AI.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
@@ -15,7 +15,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Text.Json" Version="10.0.7" />
+    <PackageReference Include="System.Text.Json" Version="10.0.8" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
   </ItemGroup>
 

diff --git a/OpenSourceToolkit.Converters/OpenSourceToolkit.Converters.csproj b/OpenSourceToolkit.Converters/OpenSourceToolkit.Converters.csproj
@@ -6,11 +6,11 @@
 
   <ItemGroup>
     <PackageReference Include="Magick.NET-Q8-AnyCPU" Version="14.13.1" />
-    <PackageReference Include="OpenCvSharp4" Version="4.13.0.20260427" />
-    <PackageReference Include="OpenCvSharp4.runtime.win" Version="4.13.0.20260302" />
-    <PackageReference Include="System.Drawing.Common" Version="10.0.7" />
-    <PackageReference Include="System.Text.Json" Version="10.0.7" />
-    <PackageReference Include="YamlDotNet" Version="16.3.0" />
+    <PackageReference Include="OpenCvSharp4" Version="4.13.0.20260528" />
+    <PackageReference Include="OpenCvSharp4.runtime.win" Version="4.13.0.20260528" />
+    <PackageReference Include="System.Drawing.Common" Version="10.0.8" />
+    <PackageReference Include="System.Text.Json" Version="10.0.8" />
+    <PackageReference Include="YamlDotNet" Version="18.0.0" />
   </ItemGroup>
 
   <PropertyGroup>

diff --git a/OpenSourceToolkit.Hardware/OpenSourceToolkit.Hardware.csproj b/OpenSourceToolkit.Hardware/OpenSourceToolkit.Hardware.csproj
@@ -7,8 +7,8 @@
   <ItemGroup>
     <PackageReference Include="NAudio" Version="2.3.0" />
     <PackageReference Include="NAudio.Lame" Version="2.1.0" />
-    <PackageReference Include="OpenCvSharp4" Version="4.13.0.20260427" />
-    <PackageReference Include="OpenCvSharp4.runtime.win" Version="4.13.0.20260302" />
+    <PackageReference Include="OpenCvSharp4" Version="4.13.0.20260528" />
+    <PackageReference Include="OpenCvSharp4.runtime.win" Version="4.13.0.20260528" />
   </ItemGroup>
 
   <PropertyGroup>

diff --git a/OpenSourceToolkit.Media/OpenSourceToolkit.Media.csproj b/OpenSourceToolkit.Media/OpenSourceToolkit.Media.csproj
@@ -13,8 +13,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="FIGLet" Version="1.1.0" />
-    <PackageReference Include="SkiaSharp" Version="3.119.2" />
+    <PackageReference Include="FIGLet" Version="2.0.14" />
+    <PackageReference Include="SkiaSharp" Version="3.119.4" />
   </ItemGroup>
 
 </Project>
diff --git a/OpenSourceToolkit.NET/App.axaml.cs b/OpenSourceToolkit.NET/App.axaml.cs
@@ -1,13 +1,12 @@
-#nullable enable
+#nullable enable
 using Avalonia;
 using Avalonia.Controls.ApplicationLifetimes;
-using Avalonia.Data.Core;
-using Avalonia.Data.Core.Plugins;
 using Avalonia.Media;
 using Avalonia.Styling;
 using System;
 using System.Globalization;
 using System.Linq;
+using System.Reflection;
 using System.Threading.Tasks;
 using Avalonia.Markup.Xaml;
 using Avalonia.Threading;
@@ -286,14 +285,22 @@ public static bool ApplyThemeInPlace(string themeName, bool saveToSettings = tru
 
         private void DisableAvaloniaDataAnnotationValidation()
         {
-            // Get an array of plugins to remove
-            var dataValidationPluginsToRemove =
-                BindingPlugins.DataValidators.OfType<DataAnnotationsValidationPlugin>().ToArray();
+            var bindingPluginsType = typeof(Application).Assembly.GetType("Avalonia.Data.Core.Plugins.BindingPlugins");
+            var dataValidatorsProperty = bindingPluginsType?.GetProperty(
+                "DataValidators",
+                BindingFlags.Static | BindingFlags.Public);
+            var dataValidators = dataValidatorsProperty?.GetValue(null) as System.Collections.IList;
+            if (dataValidators == null)
+                return;
+
+            var dataValidationPluginsToRemove = dataValidators
+                .Cast<object>()
+                .Where(plugin => plugin.GetType().FullName == "Avalonia.Data.Core.Plugins.DataAnnotationsValidationPlugin")
+                .ToArray();
 
-            // remove each entry found
             foreach (var plugin in dataValidationPluginsToRemove)
             {
-                BindingPlugins.DataValidators.Remove(plugin);
+                dataValidators.Remove(plugin);
             }
         }
 

diff --git a/OpenSourceToolkit.NET/Controls/CopyableInput.axaml b/OpenSourceToolkit.NET/Controls/CopyableInput.axaml
@@ -1,4 +1,4 @@
-<UserControl xmlns="https://github.com/avaloniaui"
+<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"
@@ -9,7 +9,7 @@
              MinWidth="120">
     <Grid ColumnDefinitions="*,Auto">
         <daisy:DaisyInput Text="{Binding Text, ElementName=Root, Mode=TwoWay}"
-                 Watermark="{Binding Watermark, ElementName=Root}"
+                 PlaceholderText="{Binding Watermark, ElementName=Root}"
                  IsReadOnly="{Binding IsReadOnly, ElementName=Root}"
                  VerticalAlignment="Center"
                  HorizontalAlignment="Stretch" />

diff --git a/OpenSourceToolkit.NET/Controls/CopyableInput.axaml.cs b/OpenSourceToolkit.NET/Controls/CopyableInput.axaml.cs
@@ -1,6 +1,7 @@
-using Avalonia;
+using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Data;
+using Avalonia.Input.Platform;
 
 namespace OpenSourceToolkit.NET.Controls
 {

diff --git a/OpenSourceToolkit.NET/Controls/CopyableTextBox.axaml b/OpenSourceToolkit.NET/Controls/CopyableTextBox.axaml
@@ -1,4 +1,4 @@
-<UserControl xmlns="https://github.com/avaloniaui"
+<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"
@@ -8,7 +8,7 @@
              x:Name="Root">
     <Grid ColumnDefinitions="*,Auto">
         <daisy:DaisyTextArea Text="{Binding Text, ElementName=Root, Mode=TwoWay}"
-                 Watermark="{Binding Watermark, ElementName=Root}"
+                 PlaceholderText="{Binding Watermark, ElementName=Root}"
                  IsReadOnly="{Binding IsReadOnly, ElementName=Root}"
                  VerticalAlignment="Stretch"
                  HorizontalAlignment="Stretch" />

diff --git a/OpenSourceToolkit.NET/Controls/CopyableTextBox.axaml.cs b/OpenSourceToolkit.NET/Controls/CopyableTextBox.axaml.cs
@@ -1,6 +1,7 @@
-using Avalonia;
+using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Data;
+using Avalonia.Input.Platform;
 using Avalonia.Media;
 using System.Windows.Input;
 

diff --git a/OpenSourceToolkit.NET/Controls/DragDropTextBox.axaml b/OpenSourceToolkit.NET/Controls/DragDropTextBox.axaml
@@ -1,4 +1,4 @@
-<UserControl xmlns="https://github.com/avaloniaui"
+<UserControl xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:controls="using:OpenSourceToolkit.NET.Controls"
              x:Class="OpenSourceToolkit.NET.Controls.DragDropTextBox"
@@ -10,7 +10,7 @@
         <TextBox x:Name="PART_TextBox"
                  IsVisible="{Binding !ShowLineNumbers, ElementName=Root}"
                  Text="{Binding Text, ElementName=Root, Mode=TwoWay}"
-                 Watermark="{Binding Watermark, ElementName=Root}"
+                 PlaceholderText="{Binding Watermark, ElementName=Root}"
                  AcceptsReturn="{Binding AcceptsReturn, ElementName=Root}"
                  TextWrapping="{Binding TextWrapping, ElementName=Root}"
                  FontSize="{Binding FontSize, ElementName=Root}"

diff --git a/OpenSourceToolkit.NET/Controls/LineNumberTextBox.axaml b/OpenSourceToolkit.NET/Controls/LineNumberTextBox.axaml
@@ -1,4 +1,4 @@
-<UserControl xmlns="https://github.com/avaloniaui"
+<UserControl xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              x:Class="OpenSourceToolkit.NET.Controls.LineNumberTextBox"
              x:Name="Root"
@@ -30,7 +30,7 @@
             <!-- Text Editor -->
             <TextBox x:Name="PART_TextBox" Grid.Column="1"
                      Text="{Binding Text, ElementName=Root, Mode=TwoWay}"
-                     Watermark="{Binding Watermark, ElementName=Root}"
+                     PlaceholderText="{Binding Watermark, ElementName=Root}"
                      AcceptsReturn="{Binding AcceptsReturn, ElementName=Root}"
                      TextWrapping="{Binding TextWrapping, ElementName=Root}"
                      FontFamily="{Binding FontFamily, ElementName=Root}"

diff --git a/OpenSourceToolkit.NET/Controls/NumericEntry.axaml b/OpenSourceToolkit.NET/Controls/NumericEntry.axaml
@@ -1,4 +1,4 @@
-<UserControl xmlns="https://github.com/avaloniaui"
+<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"
@@ -9,7 +9,7 @@
     <daisy:DaisyInput x:Name="Input"
                       Size="Small"
                       HorizontalAlignment="Stretch"
-                      Watermark="{Binding Watermark, ElementName=Root}"
+                      PlaceholderText="{Binding Watermark, ElementName=Root}"
                       MaxLength="{Binding MaxLength, ElementName=Root}"
                       Foreground="{DynamicResource DaisyBaseContentBrush}" />
 </UserControl>
diff --git a/OpenSourceToolkit.NET/OpenSourceToolkit.NET.csproj b/OpenSourceToolkit.NET/OpenSourceToolkit.NET.csproj
@@ -1,10 +1,10 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
     <TargetFramework>net8.0-windows</TargetFramework>
-    <Version>0.2.3</Version>
-    <AssemblyVersion>0.2.3.0</AssemblyVersion>
-    <FileVersion>0.2.3.0</FileVersion>
+    <Version>1.0.0</Version>
+    <AssemblyVersion>1.0.0.0</AssemblyVersion>
+    <FileVersion>1.0.0.0</FileVersion>
     <LangVersion>latest</LangVersion>
     <ImplicitUsings>disable</ImplicitUsings>
     <OutputPath Condition="'$(Configuration)'=='Debug'">..\bin\debug\</OutputPath>
@@ -50,10 +50,10 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Avalonia" Version="11.3.12" />
-    <PackageReference Include="Avalonia.Desktop" Version="11.3.12" />
-    <PackageReference Include="Avalonia.Themes.Fluent" Version="11.3.12" />
-    <PackageReference Include="Avalonia.Fonts.Inter" Version="11.3.12" />
+    <PackageReference Include="Avalonia" Version="12.0.4" />
+    <PackageReference Include="Avalonia.Desktop" Version="12.0.4" />
+    <PackageReference Include="Avalonia.Themes.Fluent" Version="12.0.4" />
+    <PackageReference Include="Avalonia.Fonts.Inter" Version="12.0.4" />
 
     <!-- Flowery.NET: Conditional reference (local project vs NuGet) -->
   </ItemGroup>
@@ -65,27 +65,27 @@
 
   <!-- Use NuGet package when UseLocalFlowery is false or not set -->
   <ItemGroup Condition="'$(UseLocalFlowery)' != 'true'">
-    <PackageReference Include="Flowery.NET" Version="1.9.2" />
+    <PackageReference Include="Flowery.NET" Version="2.0.6" />
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Material.Icons.Avalonia" Version="3.0.0-preview3.1" />
-    <PackageReference Include="Avalonia.Controls.DataGrid" Version="11.3.12" />
-    <PackageReference Include="Avalonia.Diagnostics" Version="11.3.12">
+    <PackageReference Include="Material.Icons.Avalonia" Version="3.0.3-nightly.0.2" />
+    <PackageReference Include="Avalonia.Controls.DataGrid" Version="12.0.0" />
+    <PackageReference Include="Avalonia.Diagnostics" Version="11.3.17">
       <IncludeAssets Condition="'$(Configuration)' != 'Debug'">None</IncludeAssets>
       <PrivateAssets Condition="'$(Configuration)' != 'Debug'">All</PrivateAssets>
     </PackageReference>
     <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.2" />
     <PackageReference Include="DnsClient" Version="1.8.0" />
     <PackageReference Include="Magick.NET-Q8-AnyCPU" Version="14.13.1" />
-    <PackageReference Include="OpenCvSharp4" Version="4.13.0.20260427" />
-    <PackageReference Include="OpenCvSharp4.runtime.win" Version="4.13.0.20260302" />
-    <PackageReference Include="System.Text.Json" Version="10.0.7" />
+    <PackageReference Include="OpenCvSharp4" Version="4.13.0.20260528" />
+    <PackageReference Include="OpenCvSharp4.runtime.win" Version="4.13.0.20260528" />
+    <PackageReference Include="System.Text.Json" Version="10.0.8" />
     <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="8.18.0" />
     <PackageReference Include="NCrontab" Version="3.4.0" />
     <PackageReference Include="PDFsharp" Version="6.2.4" />
-    <PackageReference Include="Microsoft.SqlServer.TransactSql.ScriptDom" Version="170.191.0" />
-    <PackageReference Include="LlmTornado" Version="3.8.55" />
+    <PackageReference Include="Microsoft.SqlServer.TransactSql.ScriptDom" Version="180.18.1" />
+    <PackageReference Include="LlmTornado" Version="3.8.57" />
   </ItemGroup>
 
   <ItemGroup>

diff --git a/OpenSourceToolkit.NET/Views/SettingsWindow.axaml b/OpenSourceToolkit.NET/Views/SettingsWindow.axaml
@@ -1,4 +1,4 @@
-<Window xmlns="https://github.com/avaloniaui"
+<Window xmlns="https://github.com/avaloniaui"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:vm="using:OpenSourceToolkit.NET.ViewModels"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
@@ -143,7 +143,7 @@
 
                                 <daisy:DaisyInput Text="{Binding GitHubToken}"
                                          PasswordChar="•"
-                                         Watermark="ghp_xxxxxxxxxxxxxxxxxxxx"
+                                         PlaceholderText="ghp_xxxxxxxxxxxxxxxxxxxx"
                                          HorizontalAlignment="Stretch"/>
 
                                 <TextBlock TextWrapping="Wrap" FontSize="11" Foreground="{DynamicResource DaisyBaseContentBrush}">
@@ -266,7 +266,7 @@
                                     <TextBlock Grid.Row="0" Grid.Column="0" Text="{loc:Localize Settings_Connections_Name}" VerticalAlignment="Center"
                                                Foreground="{DynamicResource DaisyBaseContentBrush}"/>
                                     <daisy:DaisyInput Grid.Row="0" Grid.Column="1" Text="{Binding EditConnectionName}"
-                                             Watermark="{loc:Localize Settings_Connections_NameWatermark}" HorizontalAlignment="Stretch"/>
+                                             PlaceholderText="{loc:Localize Settings_Connections_NameWatermark}" HorizontalAlignment="Stretch"/>
 
                                     <!-- Provider -->
                                     <TextBlock Grid.Row="1" Grid.Column="0" Text="{loc:Localize Settings_Connections_Provider}" VerticalAlignment="Center"
@@ -292,7 +292,7 @@
                                         <daisy:DaisyButton Content="{loc:Localize Settings_Connections_OverrideApiKey}" Command="{Binding ShowCustomApiKeyCommand}"
                                                 IsVisible="{Binding !EditShowCustomApiKey}" HorizontalAlignment="Left"/>
                                         <daisy:DaisyInput Text="{Binding EditCustomApiKey}" PasswordChar="•"
-                                                 Watermark="{loc:Localize Settings_Connections_CustomApiKeyWatermark}"
+                                                 PlaceholderText="{loc:Localize Settings_Connections_CustomApiKeyWatermark}"
                                                  IsVisible="{Binding EditShowCustomApiKey}"
                                                  HorizontalAlignment="Stretch"/>
                                     </StackPanel>
@@ -421,13 +421,13 @@
 
                                 <daisy:DaisyInput Text="{Binding SelectedProviderApiKey.ApiKey}"
                                          PasswordChar="•"
-                                         Watermark="{loc:Localize Settings_Providers_ApiKeyWatermark}"
+                                         PlaceholderText="{loc:Localize Settings_Providers_ApiKeyWatermark}"
                                          HorizontalAlignment="Stretch"/>
 
                                 <TextBlock Text="{loc:Localize Settings_Providers_Endpoint}" FontWeight="Medium" Margin="0,8,0,0"
                                            Foreground="{DynamicResource DaisyBaseContentBrush}"/>
                                 <daisy:DaisyInput Text="{Binding SelectedProviderApiKey.CustomEndpoint}"
-                                         Watermark="{loc:Localize Settings_Providers_EndpointWatermark}"
+                                         PlaceholderText="{loc:Localize Settings_Providers_EndpointWatermark}"
                                          HorizontalAlignment="Stretch"/>
 
                                 <!-- Test Connection -->
@@ -466,7 +466,7 @@
                             <!-- Add Model -->
                             <Grid Grid.Row="3" ColumnDefinitions="*,Auto" Margin="0,0,0,8">
                                 <daisy:DaisyInput Grid.Column="0" Text="{Binding NewModelName}"
-                                         Watermark="{loc:Localize Settings_Providers_NewModelWatermark}" Margin="0,0,8,0"/>
+                                         PlaceholderText="{loc:Localize Settings_Providers_NewModelWatermark}" Margin="0,0,8,0"/>
                                 <daisy:DaisyButton Grid.Column="1" Command="{Binding AddModelCommand}">
                                     <StackPanel Orientation="Horizontal" Spacing="4">
                                         <materialIcons:MaterialIcon Kind="Plus" Width="16" Height="16"/>