diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index 0a17550..48ad72e 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -63,6 +63,7 @@ Use these repository instructions as the starting point. When code or validated
 - For Copilot tool metadata such as `skip_permission` and `defer`, prefer `CopilotTool.DefineTool(..., new CopilotToolOptions { ... }, ...)` over magic-string `AdditionalProperties`. Keep RepoSyncRadar's small radar tool set pre-loaded with `CopilotToolDefer.Never`.
 - Restrict sessions to the registered radar tools and explicitly disable tool search, ambient custom instructions, org-level custom agents, coauthor trailers, scheduler integration, experimental mode, session memory, and the cross-session store unless a feature deliberately needs them. Inject managed permission settings that disable bypass-permissions mode and deny shell access as defense in depth.
 - Keep experimental API warning suppressions local to the integration that requires them.
+- Keep session file-change tracking disabled until RepoSyncRadar has a user-visible rewind flow; current radar tools do not edit workspace files.
 - Treat SDK capabilities as unavailable until confirmed in the installed package's public API. Do not rely on runtime internals or prompt-only structured-output guarantees.
 - Keep `scripts/CopilotCliRelease.props` synchronized with the SDK package's `CopilotCliVersion`. If the package download target cannot resolve that CLI, use official GitHub Release assets with published SHA-256 verification.
 
diff --git a/Directory.Packages.props b/Directory.Packages.props
index 13f840e..e9f6368 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -41,7 +41,7 @@
 
   <ItemGroup Label="GitHub / Copilot">
     <PackageVersion Include="Octokit" Version="14.0.0" />
-    <PackageVersion Include="GitHub.Copilot.SDK" Version="1.0.10-preview.0" />
+    <PackageVersion Include="GitHub.Copilot.SDK" Version="1.0.11-preview.2" />
   </ItemGroup>
 
   <ItemGroup Label="Installer / Updates">
diff --git a/scripts/CopilotCliRelease.props b/scripts/CopilotCliRelease.props
index f1f8b1a..ccbd0da 100644
--- a/scripts/CopilotCliRelease.props
+++ b/scripts/CopilotCliRelease.props
@@ -1,10 +1,10 @@
 <Project>
 
-  <!-- SHA-256 values published in the official v1.0.79-6 SHA256SUMS.txt. -->
+  <!-- SHA-256 values published in the official v1.0.79 SHA256SUMS.txt. -->
   <PropertyGroup>
-    <CopilotCliReleaseVersion>1.0.79-6</CopilotCliReleaseVersion>
-    <CopilotCliWin32X64Sha256>8949f2c4510b1bf47e15b51a7841599a8a53eb38fa0b5dcf6e2bee7c6284ec31</CopilotCliWin32X64Sha256>
-    <CopilotCliWin32Arm64Sha256>903147b5722359a48a7ccd7cb71882892bff2910ace98a36d0887915aa6ecdd9</CopilotCliWin32Arm64Sha256>
+    <CopilotCliReleaseVersion>1.0.79</CopilotCliReleaseVersion>
+    <CopilotCliWin32X64Sha256>ae87705442b502853374a58938ca48309b44ad1aef201e3de56b9ff89fe3b6bd</CopilotCliWin32X64Sha256>
+    <CopilotCliWin32Arm64Sha256>5e582cf1a15ca0b35f46e5b872c6703abe75fa88781f9ee0c804018fc0c34179</CopilotCliWin32Arm64Sha256>
   </PropertyGroup>
 
 </Project>
diff --git a/src/RepoSyncRadar.App/Copilot/SessionConfigBuilder.cs b/src/RepoSyncRadar.App/Copilot/SessionConfigBuilder.cs
index 0514961..683b0b4 100644
--- a/src/RepoSyncRadar.App/Copilot/SessionConfigBuilder.cs
+++ b/src/RepoSyncRadar.App/Copilot/SessionConfigBuilder.cs
@@ -46,6 +46,7 @@ public static SessionConfig Build(
             },
             OnPermissionRequest = permissionHandler,
             EnableSessionTelemetry = copilot.EnableSessionTelemetry,
+            EnableFileChangeTracking = false,
             EnableSessionStore = false,
             EnableExperimentalMode = false,
             Memory = new MemoryConfiguration { Enabled = false },
diff --git a/src/RepoSyncRadar.App/Settings/ThirdPartyNotices.cs b/src/RepoSyncRadar.App/Settings/ThirdPartyNotices.cs
index af24829..0925011 100644
--- a/src/RepoSyncRadar.App/Settings/ThirdPartyNotices.cs
+++ b/src/RepoSyncRadar.App/Settings/ThirdPartyNotices.cs
@@ -13,7 +13,7 @@ public static class ThirdPartyNotices
 {
     public static IReadOnlyList<ThirdPartyNotice> All { get; } =
     [
-        Mit("GitHub.Copilot.SDK", "1.0.10-preview.0", "Copyright (c) Microsoft Corporation. All rights reserved.", "https://github.com/github/copilot-sdk"),
+        Mit("GitHub.Copilot.SDK", "1.0.11-preview.2", "Copyright (c) Microsoft Corporation. All rights reserved.", "https://github.com/github/copilot-sdk"),
         new(
             "Markdig",
             "1.2.0",
diff --git a/tests/RepoSyncRadar.App.Tests/Components/ThirdPartyNoticesPanelTests.cs b/tests/RepoSyncRadar.App.Tests/Components/ThirdPartyNoticesPanelTests.cs
index fa9f4b6..1408193 100644
--- a/tests/RepoSyncRadar.App.Tests/Components/ThirdPartyNoticesPanelTests.cs
+++ b/tests/RepoSyncRadar.App.Tests/Components/ThirdPartyNoticesPanelTests.cs
@@ -28,7 +28,7 @@ public void Renders_Third_Party_Notices()
         Assert.Contains("MudBlazor", packages);
         var sdkIndex = Array.IndexOf(packages, "GitHub.Copilot.SDK");
         Assert.NotEqual(-1, sdkIndex);
-        Assert.Equal("1.0.10-preview.0", versions[sdkIndex]);
+        Assert.Equal("1.0.11-preview.2", versions[sdkIndex]);
         Assert.Contains("Microsoft.Web.WebView2", packages);
         Assert.Contains("BSD-2-Clause", cut.Markup, StringComparison.Ordinal);
         Assert.Contains("MIT", cut.Markup, StringComparison.Ordinal);
diff --git a/tests/RepoSyncRadar.App.Tests/Copilot/SessionConfigBuilderTests.cs b/tests/RepoSyncRadar.App.Tests/Copilot/SessionConfigBuilderTests.cs
index 4bec4c3..27a11ca 100644
--- a/tests/RepoSyncRadar.App.Tests/Copilot/SessionConfigBuilderTests.cs
+++ b/tests/RepoSyncRadar.App.Tests/Copilot/SessionConfigBuilderTests.cs
@@ -38,6 +38,7 @@ public async Task Build_For_Triage_Produces_Append_Mode_Streaming_With_Configure
         Assert.Equal(ContextTier.LongContext, config.ContextTier);
         Assert.True(config.Streaming);
         Assert.False(config.EnableSessionTelemetry);
+        Assert.False(config.EnableFileChangeTracking);
         Assert.False(config.EnableSessionStore);
         Assert.False(config.EnableExperimentalMode);
         Assert.NotNull(config.Memory);