diff --git a/nukebuild/RefAssemblyGenerator.cs b/nukebuild/RefAssemblyGenerator.cs
index 2c5724e3ab..cbe5236bca 100644
--- a/nukebuild/RefAssemblyGenerator.cs
+++ b/nukebuild/RefAssemblyGenerator.cs
@@ -111,9 +111,9 @@ public class RefAssemblyGenerator
 
     static void MarkAsUnstable(IMemberDefinition def, MethodReference obsoleteCtor, bool force)
     {
-        if (!force
-            || def.HasCustomAttributes == false
-            || def.CustomAttributes.All(a => a.AttributeType.FullName != "Avalonia.Metadata.UnstableAttribute"))
+        if (!force && (
+            def.HasCustomAttributes == false
+            || def.CustomAttributes.All(a => a.AttributeType.FullName != "Avalonia.Metadata.UnstableAttribute")))
             return;
 
         if (def.CustomAttributes.Any(a => a.AttributeType.FullName == "System.ObsoleteAttribute"))
diff --git a/src/Avalonia.Base/Threading/IDispatcherImpl.cs b/src/Avalonia.Base/Threading/IDispatcherImpl.cs
index 4c30e2eb2c..ccbe3baf9a 100644
--- a/src/Avalonia.Base/Threading/IDispatcherImpl.cs
+++ b/src/Avalonia.Base/Threading/IDispatcherImpl.cs
@@ -6,7 +6,7 @@ using Avalonia.Platform;
 
 namespace Avalonia.Threading;
 
-[Unstable]
+[PrivateApi]
 public interface IDispatcherImpl
 {
     bool CurrentThreadIsLoopThread { get; }
@@ -19,7 +19,7 @@ public interface IDispatcherImpl
     void UpdateTimer(long? dueTimeInMs);
 }
 
-[Unstable]
+[PrivateApi]
 public interface IDispatcherImplWithPendingInput : IDispatcherImpl
 {
     // Checks if dispatcher implementation can 
@@ -28,14 +28,14 @@ public interface IDispatcherImplWithPendingInput : IDispatcherImpl
     bool HasPendingInput { get; }
 }
 
-[Unstable]
+[PrivateApi]
 public interface IDispatcherImplWithExplicitBackgroundProcessing : IDispatcherImpl
 {
     event Action ReadyForBackgroundProcessing;
     void RequestBackgroundProcessing();
 }
 
-[Unstable]
+[PrivateApi]
 public interface IControlledDispatcherImpl : IDispatcherImplWithPendingInput
 {
     // Runs the event loop