diff --git a/package-lock.json b/package-lock.json
index 6cc1c80aa..8c0ebc5c1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,7 +5,7 @@
   "packages": {
     "": {
       "dependencies": {
-        "@modelcontextprotocol/conformance": "0.2.0-alpha.8",
+        "@modelcontextprotocol/conformance": "0.2.0-alpha.9",
         "@modelcontextprotocol/server-everything": "2026.1.26",
         "@modelcontextprotocol/server-memory": "2026.1.26"
       }
@@ -23,9 +23,9 @@
       }
     },
     "node_modules/@modelcontextprotocol/conformance": {
-      "version": "0.2.0-alpha.8",
-      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/conformance/-/conformance-0.2.0-alpha.8.tgz",
-      "integrity": "sha512-ktbvq6ftvs23TjZ/WVmTKZHue8dqoUF5bBG3Qd5pbawfTyuveZw93o07uQij8tslBlccpPVS5jE212G+SnLo2A==",
+      "version": "0.2.0-alpha.9",
+      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/conformance/-/conformance-0.2.0-alpha.9.tgz",
+      "integrity": "sha512-Bi5P5TQlOQGPJxCT7UAHbpG7wsR7sNZskHGtCoZBo6vDu416D2FXPgM4wKbg91teIgj4HjGkhnzlvP7U2dszfQ==",
       "license": "MIT",
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.29.0",
diff --git a/package.json b/package.json
index c1ad1b2b2..577d3e1f8 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "private": true,
   "description": "Pinned npm dependencies for MCP C# SDK integration and conformance tests",
   "dependencies": {
-    "@modelcontextprotocol/conformance": "0.2.0-alpha.8",
+    "@modelcontextprotocol/conformance": "0.2.0-alpha.9",
     "@modelcontextprotocol/server-everything": "2026.1.26",
     "@modelcontextprotocol/server-memory": "2026.1.26"
   }
diff --git a/tests/ModelContextProtocol.AspNetCore.Tests/ClientConformanceTests.cs b/tests/ModelContextProtocol.AspNetCore.Tests/ClientConformanceTests.cs
index 51eba1f83..8e982e92a 100644
--- a/tests/ModelContextProtocol.AspNetCore.Tests/ClientConformanceTests.cs
+++ b/tests/ModelContextProtocol.AspNetCore.Tests/ClientConformanceTests.cs
@@ -46,6 +46,19 @@ public ClientConformanceTests(ITestOutputHelper output)
     [InlineData("auth/resource-mismatch")]
     [InlineData("auth/pre-registration")]
 
+    // Offline access scope negotiation.
+    [InlineData("auth/offline-access-scope")]
+    [InlineData("auth/offline-access-not-supported")]
+
+    // RFC 9207 authorization server issuer validation.
+    [InlineData("auth/iss-supported")]
+    [InlineData("auth/iss-not-advertised")]
+    [InlineData("auth/iss-supported-missing")]
+    [InlineData("auth/iss-wrong-issuer")]
+    [InlineData("auth/iss-unexpected")]
+    [InlineData("auth/iss-normalized")]
+    [InlineData("auth/metadata-issuer-mismatch")]
+
     // Backcompat: 2025-03-26 OAuth flows (no per-request metadata, root-location metadata).
     [InlineData("auth/2025-03-26-oauth-metadata-backcompat")]
     [InlineData("auth/2025-03-26-oauth-endpoint-fallback")]
diff --git a/tests/ModelContextProtocol.AspNetCore.Tests/ServerConformanceTests.cs b/tests/ModelContextProtocol.AspNetCore.Tests/ServerConformanceTests.cs
index 2d71f40ac..cd538d819 100644
--- a/tests/ModelContextProtocol.AspNetCore.Tests/ServerConformanceTests.cs
+++ b/tests/ModelContextProtocol.AspNetCore.Tests/ServerConformanceTests.cs
@@ -1,4 +1,3 @@
-using System.Runtime.InteropServices;
 using ModelContextProtocol.Tests.Utils;
 
 namespace ModelContextProtocol.ConformanceTests;
@@ -28,12 +27,9 @@ public async Task RunConformanceTests()
     }
 
     [Fact]
-    public async Task RunPendingConformanceTest_JsonSchema202012()
+    public async Task RunConformanceTest_JsonSchema202012()
     {
         Assert.SkipWhen(!NodeHelpers.IsNodeInstalled(), "Node.js is not installed. Skipping conformance tests.");
-        Assert.SkipWhen(
-            RuntimeInformation.IsOSPlatform(OSPlatform.Windows),
-            "Pending Node-based conformance scenario is unstable on Windows due to a libuv shutdown assertion.");
 
         var result = await RunConformanceTestsAsync($"server --url {fixture.ServerUrl} --scenario json-schema-2020-12");
 
@@ -42,12 +38,9 @@ public async Task RunPendingConformanceTest_JsonSchema202012()
     }
 
     [Fact]
-    public async Task RunPendingConformanceTest_ServerSsePolling()
+    public async Task RunConformanceTest_ServerSsePolling()
     {
         Assert.SkipWhen(!NodeHelpers.IsNodeInstalled(), "Node.js is not installed. Skipping conformance tests.");
-        Assert.SkipWhen(
-            RuntimeInformation.IsOSPlatform(OSPlatform.Windows),
-            "Pending Node-based conformance scenario is unstable on Windows due to a libuv shutdown assertion.");
 
         var result = await RunConformanceTestsAsync($"server --url {fixture.ServerUrl} --scenario server-sse-polling");