diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b9adabede..a36953ed3c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,27 @@
 - Debug from .csproj and .sln [#5876](https://github.com/dotnet/vscode-csharp/issues/5876)
 
 # 2.75.x
+* Bump Roslyn to 5.0.0-1.25224.9 (PR: [#8211](https://github.com/dotnet/vscode-csharp/pull/8211))
+  * Update ICSharpCode.Decompiler to 9.1.0.7988(PR: [#78270](https://github.com/dotnet/roslyn/pull/78270))
+  * Reduce allocations in NamespaceSymbol.GetExtensionContainers(PR: [#78243](https://github.com/dotnet/roslyn/pull/78243))
+  * Allow Razor files to be additional documents in a misc files project(PR: [#78267](https://github.com/dotnet/roslyn/pull/78267))
+  * Hook up IDocumentServiceProvider in VS Code(PR: [#78266](https://github.com/dotnet/roslyn/pull/78266))
+  * Allow Razor cohosting to run in VS Code, and fix it in VS(PR: [#78167](https://github.com/dotnet/roslyn/pull/78167))
+  * Fix razor analyzer loading(PR: [#78116](https://github.com/dotnet/roslyn/pull/78116))
+  * Fix crash when converting primary constructor to normal constructor(PR: [#78234](https://github.com/dotnet/roslyn/pull/78234))
+  * Reduce LOH allocations in MetadataWriter(PR: [#78245](https://github.com/dotnet/roslyn/pull/78245))
+  * Support empty root namespaces in ResxSourceGenerator(PR: [#78233](https://github.com/dotnet/roslyn/pull/78233))
+  * Allocate slightly less in ImmutableArrayExtensions.ConditionallyDeOrder(PR: [#78235](https://github.com/dotnet/roslyn/pull/78235))
+  * Ensure FindSourceDefinitionAsync works in frozen compilation cases(PR: [#78195](https://github.com/dotnet/roslyn/pull/78195))
+  * Fix quick info for pp symbols(PR: [#78173](https://github.com/dotnet/roslyn/pull/78173))
+  * Fix issue where we were inappropriately suggesting we remove a ref-field(PR: [#78191](https://github.com/dotnet/roslyn/pull/78191))
+  * System.CommandLine update (PR: [#78142](https://github.com/dotnet/roslyn/pull/78142))
+  * Ensure LSP uses actual signature help trigger characters(PR: [#78076](https://github.com/dotnet/roslyn/pull/78076))
+  * Do not return metadata names for document symbols(PR: [#78077](https://github.com/dotnet/roslyn/pull/78077))
+  * Improve detection of code whose updates may not have effect(PR: [#78009](https://github.com/dotnet/roslyn/pull/78009))
+  * Fix crash in backing field nullability cycle scenario(PR: [#77993](https://github.com/dotnet/roslyn/pull/77993))
+  * Fix EA layering for Razor.ExternalAccess(PR: [#77927](https://github.com/dotnet/roslyn/pull/77927))
+  * Simplify workspace initialization in the LSP server(PR: [#78010](https://github.com/dotnet/roslyn/pull/78010))
 
 # 2.74.x
 * Bump xamlTools to 17.14.36010.33 (PR: [#8178](https://github.com/dotnet/vscode-csharp/pull/8178))
diff --git a/package.json b/package.json
index eb36e2df27..628e715736 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "workspace"
   ],
   "defaults": {
-    "roslyn": "5.0.0-1.25204.1",
+    "roslyn": "5.0.0-1.25224.9",
     "omniSharp": "1.39.12",
     "razor": "10.0.0-preview.25210.3",
     "razorOmnisharp": "7.0.0-preview.23363.1",
diff --git a/test/lsptoolshost/integrationTests/documentSymbolProvider.integration.test.ts b/test/lsptoolshost/integrationTests/documentSymbolProvider.integration.test.ts
index 9e489bed97..cff9c6e174 100644
--- a/test/lsptoolshost/integrationTests/documentSymbolProvider.integration.test.ts
+++ b/test/lsptoolshost/integrationTests/documentSymbolProvider.integration.test.ts
@@ -50,11 +50,11 @@ describe(`Document Symbol Tests`, () => {
         expect(symbols[0].children[0].kind).toBe(vscode.SymbolKind.Field);
 
         // Finalize
-        expect(symbols[0].children[3].name).toBe('Finalize');
+        expect(symbols[0].children[3].name).toBe('~C');
         expect(symbols[0].children[3].kind).toBe(vscode.SymbolKind.Method);
 
         // Ctor
-        expect(symbols[0].children[4].name).toBe('.ctor');
+        expect(symbols[0].children[4].name).toBe('C');
         expect(symbols[0].children[4].kind).toBe(vscode.SymbolKind.Method);
 
         // EventHandler E1
@@ -62,17 +62,12 @@ describe(`Document Symbol Tests`, () => {
         expect(symbols[0].children[5].kind).toBe(vscode.SymbolKind.Event);
 
         // explicit operator int(C c1)
-        expect(symbols[0].children[11].name).toBe('op_Explicit');
+        expect(symbols[0].children[11].name).toBe('explicit operator Int32');
         expect(symbols[0].children[11].detail).toBe('explicit operator int(C c1)');
         expect(symbols[0].children[11].kind).toBe(vscode.SymbolKind.Operator);
 
         // implicit operator int(C c1)
-        expect(symbols[0].children[12].name).toBe('op_Implicit');
-        expect(symbols[0].children[12].detail).toBe('implicit operator C(int i)');
-        expect(symbols[0].children[12].kind).toBe(vscode.SymbolKind.Operator);
-
-        // implicit operator int(C c1)
-        expect(symbols[0].children[12].name).toBe('op_Implicit');
+        expect(symbols[0].children[12].name).toBe('implicit operator C');
         expect(symbols[0].children[12].detail).toBe('implicit operator C(int i)');
         expect(symbols[0].children[12].kind).toBe(vscode.SymbolKind.Operator);
 
@@ -82,7 +77,7 @@ describe(`Document Symbol Tests`, () => {
         expect(symbols[0].children[13].kind).toBe(vscode.SymbolKind.Method);
 
         // operator !=
-        expect(symbols[0].children[14].name).toBe('op_Inequality');
+        expect(symbols[0].children[14].name).toBe('operator !=');
         expect(symbols[0].children[14].detail).toBe('operator !=(C c1, int i)');
         expect(symbols[0].children[14].kind).toBe(vscode.SymbolKind.Operator);