diff --git a/build/PackageDiffIgnore.xml b/build/PackageDiffIgnore.xml
index 842b956bed03..402975ccdcc5 100644
--- a/build/PackageDiffIgnore.xml
+++ b/build/PackageDiffIgnore.xml
@@ -2940,6 +2940,9 @@
 		  <Member fullName="System.Boolean Uno.UI.FeatureConfiguration/Cursors::UseHandForInteraction()" reason="Removed Cursors.UseHandForInteraction flag (#2052, breaking changes for 7.0)" />
 		  <Member fullName="System.Boolean Uno.UI.FeatureConfiguration/WebView2::IsInspectable()" reason="Removed WebView2.IsInspectable flag, superseded by EnableDevTools (#2052, breaking changes for 7.0)" />
 		  <Member fullName="System.Boolean Uno.UI.FeatureConfiguration/AndroidSettings::IsEdgeToEdgeEnabled()" reason="Removed AndroidSettings.IsEdgeToEdgeEnabled flag; edge-to-edge is now unconditional on Skia-Android (#2052, breaking changes for 7.0)" />
+		  <!-- Property types aligned to the WinUI metadata (#2086, breaking changes for 7.0). -->
+		  <Member fullName="System.Object Microsoft.UI.Xaml.Data.Binding::ElementName()" reason="WinUI sync: Binding.ElementName narrowed from object to string to match WinUI metadata (#2086, breaking changes for 7.0)" />
+		  <Member fullName="Microsoft.UI.Xaml.Media.Animation.IEasingFunction Microsoft.UI.Xaml.Media.Animation.DoubleAnimation::EasingFunction()" reason="WinUI sync: DoubleAnimation.EasingFunction changed from IEasingFunction to EasingFunctionBase to match WinUI metadata (#2086, breaking changes for 7.0)" />
 	  </Properties>
 	  <Methods>
 		  <!-- StackLayout.DisableVirtualizationProperty DP getter: paired with the removed property (see <Properties> above). DisableVirtualization is a plain CLR property in WinUI. -->
@@ -2957,6 +2960,11 @@
 		  <Member fullName="System.Void Microsoft.UI.Xaml.Controls.NavigationViewItem.set_MenuItems(System.Collections.Generic.IList`1&lt;System.Object&gt; value)" reason="Aligned to WinUI IDL (get-only / non-activatable)" />
 		  <Member fullName="System.Void Microsoft.UI.Xaml.Controls.NavigationViewTemplateSettings.set_OpenPaneLength(System.Double value)" reason="Aligned to WinUI IDL (get-only / non-activatable)" />
 		  <Member fullName="System.Void Microsoft.UI.Xaml.Controls.NavigationViewSelectionChangedEventArgs..ctor()" reason="Aligned to WinUI IDL (get-only / non-activatable)" />
+		  <!-- Binding.ElementName (object->string) and DoubleAnimation.EasingFunction (IEasingFunction->EasingFunctionBase) accessors, aligned to WinUI metadata (#2086, breaking changes for 7.0). -->
+		  <Member fullName="System.Object Microsoft.UI.Xaml.Data.Binding.get_ElementName()" reason="WinUI sync: Binding.ElementName narrowed from object to string (#2086, breaking changes for 7.0)" />
+		  <Member fullName="System.Void Microsoft.UI.Xaml.Data.Binding.set_ElementName(System.Object value)" reason="WinUI sync: Binding.ElementName narrowed from object to string (#2086, breaking changes for 7.0)" />
+		  <Member fullName="Microsoft.UI.Xaml.Media.Animation.IEasingFunction Microsoft.UI.Xaml.Media.Animation.DoubleAnimation.get_EasingFunction()" reason="WinUI sync: DoubleAnimation.EasingFunction changed from IEasingFunction to EasingFunctionBase (#2086, breaking changes for 7.0)" />
+		  <Member fullName="System.Void Microsoft.UI.Xaml.Media.Animation.DoubleAnimation.set_EasingFunction(Microsoft.UI.Xaml.Media.Animation.IEasingFunction value)" reason="WinUI sync: DoubleAnimation.EasingFunction changed from IEasingFunction to EasingFunctionBase (#2086, breaking changes for 7.0)" />
 	  </Methods>
 	</IgnoreSet>
 	<![CDATA[
diff --git a/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhBiElNaInTe/XamlCodeGenerator_Binding_ElementName_In_Template_66bf0a54f1801c397a6fa4930a237eca.cs b/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhBiElNaInTe/XamlCodeGenerator_Binding_ElementName_In_Template_66bf0a54f1801c397a6fa4930a237eca.cs
index 3eeb4e1df0a4..13de01cf17bd 100644
--- a/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhBiElNaInTe/XamlCodeGenerator_Binding_ElementName_In_Template_66bf0a54f1801c397a6fa4930a237eca.cs
+++ b/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhBiElNaInTe/XamlCodeGenerator_Binding_ElementName_In_Template_66bf0a54f1801c397a6fa4930a237eca.cs
@@ -163,7 +163,7 @@ public _View Build(object __ResourceOwner_1, global::Microsoft.UI.Xaml.TemplateM
 							new Microsoft.UI.Xaml.Data.Binding()
 							{
 								Path = @"Tag",
-								ElementName = _topLevelSubject,
+								ElementNameSubject = _topLevelSubject,
 							}
 						);
 						global::Uno.UI.FrameworkElementHelper.SetBaseUri(__p1, __baseUri_Binding_ElementName_In_Template_66bf0a54f1801c397a6fa4930a237eca);
diff --git a/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhXaObWiCoPr/XamlCodeGenerator_Binding_Xaml_Object_With_Common_Properties_4891310bc693a433ba9a8e9f5113f94f.cs b/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhXaObWiCoPr/XamlCodeGenerator_Binding_Xaml_Object_With_Common_Properties_4891310bc693a433ba9a8e9f5113f94f.cs
index f4f1219920eb..17e95cf984e6 100644
--- a/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhXaObWiCoPr/XamlCodeGenerator_Binding_Xaml_Object_With_Common_Properties_4891310bc693a433ba9a8e9f5113f94f.cs
+++ b/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhXaObWiCoPr/XamlCodeGenerator_Binding_Xaml_Object_With_Common_Properties_4891310bc693a433ba9a8e9f5113f94f.cs
@@ -85,7 +85,7 @@ private void InitializeComponent()
 								new Microsoft.UI.Xaml.Data.Binding()
 								{
 									Path = @"Tag",
-									ElementName = _topLevelSubject,
+									ElementNameSubject = _topLevelSubject,
 									Converter = (global::Microsoft.UI.Xaml.Data.IValueConverter)global::Uno.UI.ResourceResolverSingleton.Instance.ResolveResourceStatic("Binding_Xaml_Object_With_Common_Properties_Return_Value_Converter", typeof(global::Microsoft.UI.Xaml.Data.IValueConverter), context: global::MyProject.GlobalStaticResources.__ParseContext_),
 									ConverterParameter = @"topLevel",
 									ConverterLanguage = "topLevel",
diff --git a/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhXaObWiXaObPr/XamlCodeGenerator_Binding_Xaml_Object_With_Xaml_Object_Properties_5147419e44d1bc3e3f86860ad528476f.cs b/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhXaObWiXaObPr/XamlCodeGenerator_Binding_Xaml_Object_With_Xaml_Object_Properties_5147419e44d1bc3e3f86860ad528476f.cs
index 9eecdd82116f..a600ce43e938 100644
--- a/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhXaObWiXaObPr/XamlCodeGenerator_Binding_Xaml_Object_With_Xaml_Object_Properties_5147419e44d1bc3e3f86860ad528476f.cs
+++ b/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Binding/WhXaObWiXaObPr/XamlCodeGenerator_Binding_Xaml_Object_With_Xaml_Object_Properties_5147419e44d1bc3e3f86860ad528476f.cs
@@ -77,7 +77,7 @@ private void InitializeComponent()
 								new Microsoft.UI.Xaml.Data.Binding()
 								{
 									Path = @"Tag",
-									ElementName = _topLevelSubject,
+									ElementNameSubject = _topLevelSubject,
 									Converter = new global::Uno.UI.Tests.Windows_UI_Xaml_Data.BindingTests.Controls.Binding_Xaml_Object_With_Xaml_Object_Properties_Return_Value_Converter(),
 									ConverterParameter = "topLevel",
 									ConverterLanguage = "topLevel",
diff --git a/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Parser.Errors/WhInXaCa002/XamlCodeGenerator_MainPage_d6cd66944958ced0c513e0a04797b51d.cs b/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Parser.Errors/WhInXaCa002/XamlCodeGenerator_MainPage_d6cd66944958ced0c513e0a04797b51d.cs
index b98a517e6d19..9233813753b6 100644
--- a/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Parser.Errors/WhInXaCa002/XamlCodeGenerator_MainPage_d6cd66944958ced0c513e0a04797b51d.cs
+++ b/src/SourceGenerators/Uno.UI.SourceGenerators.Tests/XamlCodeGeneratorTests/Out/Given_Parser.Errors/WhInXaCa002/XamlCodeGenerator_MainPage_d6cd66944958ced0c513e0a04797b51d.cs
@@ -1033,7 +1033,7 @@ public _View Build(object __ResourceOwner_1, global::Microsoft.UI.Xaml.TemplateM
 																		new Microsoft.UI.Xaml.Data.Binding()
 																		{
 																			Path = @"EditDurationCommand",
-																			ElementName = _ActivitiesListSubject,
+																			ElementNameSubject = _ActivitiesListSubject,
 																		}
 																	);
 																	global::Uno.UI.FrameworkElementHelper.SetBaseUri(__p1, __baseUri_MainPage_d6cd66944958ced0c513e0a04797b51d);
diff --git a/src/SourceGenerators/Uno.UI.SourceGenerators/XamlGenerator/XamlFileGenerator.cs b/src/SourceGenerators/Uno.UI.SourceGenerators/XamlGenerator/XamlFileGenerator.cs
index 04e699e4b69d..01f88929eb8e 100644
--- a/src/SourceGenerators/Uno.UI.SourceGenerators/XamlGenerator/XamlFileGenerator.cs
+++ b/src/SourceGenerators/Uno.UI.SourceGenerators/XamlGenerator/XamlFileGenerator.cs
@@ -4815,8 +4815,17 @@ private string BuildMemberPropertyValue(XamlMemberDefinition m, bool isTemplateB
 			}
 			else
 			{
+				var memberName = m.Member.Name == "_PositionalParameters" ? "Path" : m.Member.Name;
+
+				// The public ElementName is a string (WinUI parity); the routing subject used
+				// for late binding is carried by the Uno-only ElementNameSubject property.
+				if (memberName == "ElementName")
+				{
+					memberName = "ElementNameSubject";
+				}
+
 				return "{0} = {1}".InvariantCultureFormat(
-					m.Member.Name == "_PositionalParameters" ? "Path" : m.Member.Name,
+					memberName,
 					BuildBindingOption(m, FindPropertyType(m.Member), isTemplateBindingAttachedProperty));
 			}
 		}
diff --git a/src/Uno.UI/DataBinding/BindingExpression.cs b/src/Uno.UI/DataBinding/BindingExpression.cs
index 0c28dd30c209..c5496ac17239 100644
--- a/src/Uno.UI/DataBinding/BindingExpression.cs
+++ b/src/Uno.UI/DataBinding/BindingExpression.cs
@@ -137,7 +137,7 @@ Binding binding
 					.ToArray();
 			}
 
-			if (ParentBinding.ElementName != null)
+			if (ParentBinding.ElementNameSubject != null)
 			{
 				_isElementNameSource = true;
 			}
@@ -364,7 +364,7 @@ private UpdateSourceTrigger ResolveUpdateSourceTrigger()
 
 		internal void ApplyElementName()
 		{
-			if (ParentBinding.ElementName is ElementNameSubject elementNameSubject)
+			if (ParentBinding.ElementNameSubject is { } elementNameSubject)
 			{
 
 				if (elementNameSubject.IsLoadTimeBound)
diff --git a/src/Uno.UI/UI/Xaml/Controls/SwipeControl/SwipeControl.Uno.cs b/src/Uno.UI/UI/Xaml/Controls/SwipeControl/SwipeControl.Uno.cs
index e0b616ca5636..3fb62fe38ac1 100644
--- a/src/Uno.UI/UI/Xaml/Controls/SwipeControl/SwipeControl.Uno.cs
+++ b/src/Uno.UI/UI/Xaml/Controls/SwipeControl/SwipeControl.Uno.cs
@@ -486,7 +486,8 @@ private async Task AnimateTransforms(bool useInertiaSpeed, double inertiaSpeed)
 			{
 				To = desiredPosition,
 				Duration = new Duration(TimeSpan.FromSeconds(duration)),
-				EasingFunction = useInertiaSpeed ? (IEasingFunction)LinearEase.Instance : new QuadraticEase()
+				// A null EasingFunction is interpolated linearly (the animator substitutes LinearEase).
+				EasingFunction = useInertiaSpeed ? null : new QuadraticEase()
 				{
 					EasingMode = EasingMode.EaseInOut
 				}
@@ -503,7 +504,8 @@ private async Task AnimateTransforms(bool useInertiaSpeed, double inertiaSpeed)
 				{
 					To = stackDesiredPosition,
 					Duration = new Duration(TimeSpan.FromSeconds(duration)),
-					EasingFunction = useInertiaSpeed ? (IEasingFunction)LinearEase.Instance : new QuadraticEase()
+					// A null EasingFunction is interpolated linearly (the animator substitutes LinearEase).
+					EasingFunction = useInertiaSpeed ? null : new QuadraticEase()
 					{
 						EasingMode = EasingMode.EaseInOut
 					}
diff --git a/src/Uno.UI/UI/Xaml/Data/Binding.cs b/src/Uno.UI/UI/Xaml/Data/Binding.cs
index 06555dbc408e..a6bb47cf2bbf 100644
--- a/src/Uno.UI/UI/Xaml/Data/Binding.cs
+++ b/src/Uno.UI/UI/Xaml/Data/Binding.cs
@@ -95,8 +95,19 @@ public static implicit operator Binding(string path)
 		/// <summary>
 		/// Gets or sets the name of the element to use as the binding source for the Binding.
 		/// </summary>
-		/// <value>The name of the element, or an ElementNameSubject instance that can be used to monitor the element name instance changes.</value>
-		public object ElementName { get; set; }
+		/// <value>The name of the element.</value>
+		public string ElementName { get; set; }
+
+		/// <summary>
+		/// Routes the availability of the element instance for a late-bound ElementName binding.
+		/// </summary>
+		/// <remarks>
+		/// Uno-only seam set by the XAML code generator and runtime reader. It must be public
+		/// because the compiled-XAML output lives in the consuming assembly, which has no access
+		/// to Uno.UI internals (same rationale as <see cref="CompiledSource"/>).
+		/// </remarks>
+		[EditorBrowsable(EditorBrowsableState.Never)]
+		public ElementNameSubject ElementNameSubject { get; set; }
 
 		/// <summary>
 		/// Gets or sets the value to use when the binding is unable to return a value.
diff --git a/src/Uno.UI/UI/Xaml/DependencyPropertyDetailsCollection.cs b/src/Uno.UI/UI/Xaml/DependencyPropertyDetailsCollection.cs
index 4c1f4513ae54..60cd23879c4a 100644
--- a/src/Uno.UI/UI/Xaml/DependencyPropertyDetailsCollection.cs
+++ b/src/Uno.UI/UI/Xaml/DependencyPropertyDetailsCollection.cs
@@ -75,6 +75,7 @@ internal void CloneToForHotReload(DependencyPropertyDetailsCollection other, Dep
 							newBinding.Mode = binding.Mode;
 							newBinding.TargetNullValue = binding.TargetNullValue;
 							newBinding.ElementName = binding.ElementName;
+							newBinding.ElementNameSubject = binding.ElementNameSubject;
 							newBinding.FallbackValue = binding.FallbackValue;
 							if (binding.RelativeSource is { } relativeSource)
 							{
diff --git a/src/Uno.UI/UI/Xaml/Markup/Reader/XamlObjectBuilder.cs b/src/Uno.UI/UI/Xaml/Markup/Reader/XamlObjectBuilder.cs
index 28fd855d4576..9f146d934edc 100644
--- a/src/Uno.UI/UI/Xaml/Markup/Reader/XamlObjectBuilder.cs
+++ b/src/Uno.UI/UI/Xaml/Markup/Reader/XamlObjectBuilder.cs
@@ -1202,7 +1202,7 @@ private Binding BuildBindingExpression(object? instance, object? rootInstance, X
 
 					case nameof(Binding.ElementName):
 						var subject = new ElementNameSubject();
-						binding.ElementName = subject;
+						binding.ElementNameSubject = subject;
 
 						if (bindingProperty.Value?.ToString() is { } value)
 						{
diff --git a/src/Uno.UI/UI/Xaml/Media/Animation/DoubleAnimation.cs b/src/Uno.UI/UI/Xaml/Media/Animation/DoubleAnimation.cs
index c2330c79902a..fbe43dffd1dc 100644
--- a/src/Uno.UI/UI/Xaml/Media/Animation/DoubleAnimation.cs
+++ b/src/Uno.UI/UI/Xaml/Media/Animation/DoubleAnimation.cs
@@ -58,9 +58,9 @@ public bool EnableDependentAnimation
 		public static DependencyProperty EnableDependentAnimationProperty { get; } =
 			DependencyProperty.Register("EnableDependentAnimation", typeof(bool), typeof(DoubleAnimation), new FrameworkPropertyMetadata(false));
 
-		public IEasingFunction EasingFunction
+		public EasingFunctionBase EasingFunction
 		{
-			get => (IEasingFunction)GetValue(EasingFunctionProperty);
+			get => (EasingFunctionBase)GetValue(EasingFunctionProperty);
 			set => SetValue(EasingFunctionProperty, value);
 		}
 
@@ -73,7 +73,7 @@ public IEasingFunction EasingFunction
 		float? IAnimation<float>.By => (float?)By;
 
 		public static DependencyProperty EasingFunctionProperty { get; } =
-			DependencyProperty.Register("EasingFunction", typeof(IEasingFunction), typeof(DoubleAnimation), new FrameworkPropertyMetadata(null));
+			DependencyProperty.Register("EasingFunction", typeof(EasingFunctionBase), typeof(DoubleAnimation), new FrameworkPropertyMetadata(null));
 
 		void ITimeline.Begin() => _animationImplementation.Begin();
 
diff --git a/src/Uno.WinAppSDKSyncGenerator/Helpers/SymbolMatchingHelpers.cs b/src/Uno.WinAppSDKSyncGenerator/Helpers/SymbolMatchingHelpers.cs
index f01fa6f03141..5f0762b0669f 100644
--- a/src/Uno.WinAppSDKSyncGenerator/Helpers/SymbolMatchingHelpers.cs
+++ b/src/Uno.WinAppSDKSyncGenerator/Helpers/SymbolMatchingHelpers.cs
@@ -223,13 +223,7 @@ private static bool ArePropertiesMatching(IPropertySymbol uapProperty, IProperty
 
 		// Property type of ContentTemplateRoot is diverging from UWP.
 		// In Uno we use the native view for each platform Android.Views.View, UIKit.UIView, AppKit.NSView
-		if (!AreMatching(uapProperty.Type, unoProperty.Type) && uapProperty.Name != "ContentTemplateRoot" &&
-			// object vs UIElement
-			uapProperty.Name != "Content" &&
-			// IEasingFunction vs EasingFunctionBase
-			uapProperty.Name != "EasingFunction" &&
-			// string vs object
-			uapProperty.Name != "ElementName")
+		if (!AreMatching(uapProperty.Type, unoProperty.Type) && uapProperty.Name != "ContentTemplateRoot")
 		{
 			return false;
 		}