diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5aead11..632499b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## 0.10.26 (Preview)
+## 0.10.27 (Preview)
 
 ### Added
 - **Versioned MCP envelope support** — the extension now launches `binlog-mcp` with `--envelope` and unwraps the server's versioned JSON envelope (`{ schemaVersion, kind, data, error }`) at the MCP client boundary, so the tree, webviews, and Problems panel consume structured `data` directly. It validates the envelope's schema major version, surfaces server-side errors, and shows an actionable "the installed server is too old to support `--envelope`" message (with the `dotnet tool update` command) when connected to a pre-envelope `binlog-mcp`. The MCP entry spawned directly by Copilot Chat deliberately stays on the server's default LLM-optimized prose output.
diff --git a/package-lock.json b/package-lock.json
index 632447e..960798e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "binlog-analyzer",
-  "version": "0.10.26",
+  "version": "0.10.27",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "binlog-analyzer",
-      "version": "0.10.26",
+      "version": "0.10.27",
       "license": "MIT",
       "dependencies": {
         "@vscode/extension-telemetry": "^0.9.0"
diff --git a/package.json b/package.json
index 5b51de4..1052b77 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "binlog-analyzer",
   "displayName": "MSBuild Binlog Analyzer",
   "description": "Analyze MSBuild binary logs with Copilot Chat and MCP tools",
-  "version": "0.10.26",
+  "version": "0.10.27",
   "preview": true,
   "publisher": "dotutils",
   "license": "MIT",