diff --git a/Make.versions b/Make.versions
index cf6110cafc57..94f051cc5c58 100644
--- a/Make.versions
+++ b/Make.versions
@@ -110,16 +110,6 @@ SUPPORTED_API_VERSIONS_MACCATALYST=$(DOTNET_TFM)-$(MACCATALYST_NUGET_OS_VERSION)
 
 # Add older versions here!
 
-SUPPORTED_API_VERSIONS_IOS+=net9.0-18.0
-SUPPORTED_API_VERSIONS_TVOS+=net9.0-18.0
-SUPPORTED_API_VERSIONS_MACOS+=net9.0-15.0
-SUPPORTED_API_VERSIONS_MACCATALYST+=net9.0-18.0
-
-SUPPORTED_API_VERSIONS_IOS+=net9.0-26.0
-SUPPORTED_API_VERSIONS_TVOS+=net9.0-26.0
-SUPPORTED_API_VERSIONS_MACOS+=net9.0-26.0
-SUPPORTED_API_VERSIONS_MACCATALYST+=net9.0-26.0
-
 SUPPORTED_API_VERSIONS_IOS+=net10.0-26.0
 SUPPORTED_API_VERSIONS_TVOS+=net10.0-26.0
 SUPPORTED_API_VERSIONS_MACOS+=net10.0-26.0
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 786e6a545955..69d13e322e11 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -25,57 +25,6 @@
       <Uri>https://github.com/dotnet/dotnet</Uri>
       <Sha>29eefe27a350eb8b0bcbababa7863a0d1086295d</Sha>
     </Dependency>
-    <!-- This is a subscription of the .NET 9 latest stable versions of our packages -->
-    <Dependency Name="Microsoft.MacCatalyst.Sdk.net9.0_18.5" Version="18.5.9227">
-      <Uri>https://github.com/dotnet/macios</Uri>
-      <Sha>4681bf928d70aa79cff2c33ad324b3be9c62b66d</Sha>
-    </Dependency>
-    <Dependency Name="Microsoft.macOS.Sdk.net9.0_15.5" Version="15.5.9227">
-      <Uri>https://github.com/dotnet/macios</Uri>
-      <Sha>4681bf928d70aa79cff2c33ad324b3be9c62b66d</Sha>
-    </Dependency>
-    <Dependency Name="Microsoft.iOS.Sdk.net9.0_18.5" Version="18.5.9227">
-      <Uri>https://github.com/dotnet/macios</Uri>
-      <Sha>4681bf928d70aa79cff2c33ad324b3be9c62b66d</Sha>
-    </Dependency>
-    <Dependency Name="Microsoft.tvOS.Sdk.net9.0_18.5" Version="18.5.9227">
-      <Uri>https://github.com/dotnet/macios</Uri>
-      <Sha>4681bf928d70aa79cff2c33ad324b3be9c62b66d</Sha>
-    </Dependency>
-    <!-- This is a subscription of the .NET 9/Xcode 16.0 versions of our packages -->
-    <Dependency Name="Microsoft.MacCatalyst.Sdk.net9.0_18.0" Version="18.0.9617">
-      <Uri>https://github.com/xamarin/xamarin-macios</Uri>
-      <Sha>797d30720e5e629d23eb146935da94cb1b61047e</Sha>
-    </Dependency>
-    <Dependency Name="Microsoft.macOS.Sdk.net9.0_15.0" Version="15.0.9617">
-      <Uri>https://github.com/xamarin/xamarin-macios</Uri>
-      <Sha>797d30720e5e629d23eb146935da94cb1b61047e</Sha>
-    </Dependency>
-    <Dependency Name="Microsoft.iOS.Sdk.net9.0_18.0" Version="18.0.9617">
-      <Uri>https://github.com/xamarin/xamarin-macios</Uri>
-      <Sha>797d30720e5e629d23eb146935da94cb1b61047e</Sha>
-    </Dependency>
-    <Dependency Name="Microsoft.tvOS.Sdk.net9.0_18.0" Version="18.0.9617">
-      <Uri>https://github.com/xamarin/xamarin-macios</Uri>
-      <Sha>797d30720e5e629d23eb146935da94cb1b61047e</Sha>
-    </Dependency>
-    <!-- This is a subscription of the .NET 9/Xcode 26.0 versions of our packages -->
-    <Dependency Name="Microsoft.MacCatalyst.Sdk.net9.0_26.0" Version="26.0.9754">
-      <Uri>https://github.com/dotnet/macios</Uri>
-      <Sha>4177c9d9590857cfb2617fd7a7ef3d5e1de48ed3</Sha>
-    </Dependency>
-    <Dependency Name="Microsoft.macOS.Sdk.net9.0_26.0" Version="26.0.9754">
-      <Uri>https://github.com/dotnet/macios</Uri>
-      <Sha>4177c9d9590857cfb2617fd7a7ef3d5e1de48ed3</Sha>
-    </Dependency>
-    <Dependency Name="Microsoft.iOS.Sdk.net9.0_26.0" Version="26.0.9754">
-      <Uri>https://github.com/dotnet/macios</Uri>
-      <Sha>4177c9d9590857cfb2617fd7a7ef3d5e1de48ed3</Sha>
-    </Dependency>
-    <Dependency Name="Microsoft.tvOS.Sdk.net9.0_26.0" Version="26.0.9754">
-      <Uri>https://github.com/dotnet/macios</Uri>
-      <Sha>4177c9d9590857cfb2617fd7a7ef3d5e1de48ed3</Sha>
-    </Dependency>
     <!-- This is a subscription of the .NET 10/Xcode 26.0 versions of our packages -->
     <Dependency Name="Microsoft.MacCatalyst.Sdk.net10.0_26.0" Version="26.0.11017">
       <Uri>https://github.com/dotnet/macios</Uri>
diff --git a/tests/dotnet/UnitTests/ProjectTest.cs b/tests/dotnet/UnitTests/ProjectTest.cs
index e5ade9ac2e5f..4215043412e0 100644
--- a/tests/dotnet/UnitTests/ProjectTest.cs
+++ b/tests/dotnet/UnitTests/ProjectTest.cs
@@ -2078,7 +2078,7 @@ public void BuildNet8_0App (ApplePlatform platform, string runtimeIdentifiers)
 		[TestCase (ApplePlatform.MacCatalyst, "maccatalyst-x64")]
 		public void BuildNet9_0App (ApplePlatform platform, string runtimeIdentifiers)
 		{
-			BuildSupportedNetVersionApp (platform, runtimeIdentifiers, 9);
+			BuildUnsupportedNetVersionApp (platform, runtimeIdentifiers, 9, isFuture: false);
 		}
 
 		[Test]