diff --git a/.github/skills/update-roslyn-version/SKILL.md b/.github/skills/update-roslyn-version/SKILL.md
index 0689eed340..0aa6d55f76 100644
--- a/.github/skills/update-roslyn-version/SKILL.md
+++ b/.github/skills/update-roslyn-version/SKILL.md
@@ -176,21 +176,29 @@ Note: Leave the PR number blank initially (just `[#]`) - it will be updated afte
 
 ### Step 8: Filter Changelog Entries
 
-Review the changelog entries in `CHANGELOG.md` and remove any PRs that obviously don't affect VS Code. Remove entries that are:
+Treat the changelog as a concise list of user-facing VS Code editor and language server changes, not a list of all production changes in Roslyn. Review the PR title and, when its impact is ambiguous, its changed files or description.
+
+Remove entries that are:
 
 - **Infrastructure/Build changes**: CI/CD pipelines, build scripts, Azure DevOps configurations
 - **Visual Studio-only changes**: Features or fixes specific to Visual Studio IDE (not VS Code)
 - **Test-only changes**: Test infrastructure, test fixes that don't affect production code
 - **Internal tooling**: Changes to internal tools not used by the language server
 - **Documentation-only**: README updates, internal docs (unless they document user-facing features)
+- **Compiler-only changes**: Language implementation, parsing, lowering, emit, code generation, compiler APIs, or compiler performance changes without direct editor or language server impact
+- **Razor compiler internals**: Razor parsing, lowering, code generation, or compiler architecture changes that do not directly change the VS Code editing experience
+- **Internal refactoring and dependencies**: Architectural refactors, implementation details, package updates, or internal performance work unless they have a clear user-visible effect in VS Code
 
 Keep entries that are:
 - Language server protocol (LSP) changes
-- Code analysis/diagnostics improvements
+- Code analysis or diagnostics improvements visible in the editor
 - Completion, navigation, refactoring features
-- Performance improvements
+- Performance improvements specifically affecting editor or language server responsiveness
 - Bug fixes that affect language server behavior
-- API changes that could affect VS Code extension
+- Razor changes that directly affect editing features such as formatting, completion, navigation, or code actions
+- API changes consumed by the VS Code extension or language server
+
+When uncertain, omit the entry from `CHANGELOG.md`; the complete unfiltered list remains available in the pull request description.
 
 ### Step 9: Commit and Push
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f79d78c218..32abf71fbf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@
 - Debug from .csproj and .sln [#5876](https://github.com/dotnet/vscode-csharp/issues/5876)
 
 # 2.150.x
+* Update Roslyn to 5.11.0-1.26424.9 (PR: [#9701](https://github.com/dotnet/vscode-csharp/pull/9701))
+  * Support loading cached project data from .lscache files (PR: [#84790](https://github.com/dotnet/roslyn/pull/84790))
+  * Fix rename conflict for source generated partial members (PR: [#84951](https://github.com/dotnet/roslyn/pull/84951))
+  * Fix IDE0046 code fix throwing on top-level statements (PR: [#84966](https://github.com/dotnet/roslyn/pull/84966))
+  * Fix/84847 source generated rename conflict (PR: [#84849](https://github.com/dotnet/roslyn/pull/84849))
+  * Do not offer introduce parameter for incomplete calls (PR: [#84769](https://github.com/dotnet/roslyn/pull/84769))
+  * Always pass C# formatting options to Razor functions (PR: [#84795](https://github.com/dotnet/roslyn/pull/84795))
+  * Fix formatting error when Roslyn adds an extra blank line (PR: [#84751](https://github.com/dotnet/roslyn/pull/84751))
 
 # 2.149.x
 * Bump fast-uri from 3.1.4 to 3.1.5 (PR: [#9658](https://github.com/dotnet/vscode-csharp/pull/9658))
diff --git a/package.json b/package.json
index 075024a318..eb0af21b47 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "workspace"
   ],
   "defaults": {
-    "roslyn": "5.11.0-1.26405.8",
+    "roslyn": "5.11.0-1.26424.9",
     "omniSharp": "1.39.14",
     "razorOmnisharp": "7.0.0-preview.23363.1",
     "xamlTools": "18.10.12014.341",
diff --git a/test/razor/razorIntegrationTests/rename.integration.test.ts b/test/razor/razorIntegrationTests/rename.integration.test.ts
index cfcf51c37f..4af28f2bde 100644
--- a/test/razor/razorIntegrationTests/rename.integration.test.ts
+++ b/test/razor/razorIntegrationTests/rename.integration.test.ts
@@ -64,6 +64,9 @@ describe(`Razor Rename ${testAssetWorkspace.description}`, function () {
                 expect(uri.path).toStrictEqual(activeDocument.path);
                 expect(edits.length).toBe(3);
 
+                // Rename edits can come from multiple generated documents, so their order is not guaranteed.
+                edits.sort((a, b) => a.range.start.compareTo(b.range.start));
+
                 const edit1 = edits[0];
                 expect(edit1.range).toStrictEqual(
                     new vscode.Range(new vscode.Position(6, 33), new vscode.Position(6, 45))