diff --git a/CHANGELOG.md b/CHANGELOG.md
index d0929dbf04..a2b68b2cbf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,8 @@
 - Diagnostics related feature requests and improvements [#5951](https://github.com/dotnet/vscode-csharp/issues/5951)
 - Debug from .csproj and .sln [#5876](https://github.com/dotnet/vscode-csharp/issues/5876)
 
+# 2.91.x
+
 # 2.90.x
 * Bump Roslyn to 5.0.0-2.25424.1 (PR: [#8559](https://github.com/dotnet/vscode-csharp/pull/8559))
   * Generate `init` accessor for required properties inside `readonly struct`s (PR: [#80004](https://github.com/dotnet/roslyn/pull/80004))
diff --git a/version.json b/version.json
index 681cc0102a..7dff79f792 100644
--- a/version.json
+++ b/version.json
@@ -1,6 +1,6 @@
 {
     "$schema": "https://raw.githubusercontent.com/dotnet/Nerdbank.GitVersioning/master/src/NerdBank.GitVersioning/version.schema.json",
-    "version": "2.90",
+    "version": "2.91",
     "publicReleaseRefSpec": [
         "^refs/heads/release$",
         "^refs/heads/prerelease$",