diff --git a/vscode/CHANGELOG.md b/vscode/CHANGELOG.md
index 73d0021a3..cd2454050 100644
--- a/vscode/CHANGELOG.md
+++ b/vscode/CHANGELOG.md
@@ -6,8 +6,11 @@ Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how
 
 ## [Unreleased]
 
+## 0.3.0
+
 * [bug] Fix a bug that the extension cannot show studies on the first attempt.
 * [feature] Enable a "Open in Optuna Dashboard" menu for `.log` files.
+* [enhancement] Add a slight performance improvement when loading a SQLite3 file that contains a lot of trials.
 
 ## 0.2.0
 
diff --git a/vscode/package.json b/vscode/package.json
index e5ee047a0..2765fb07f 100644
--- a/vscode/package.json
+++ b/vscode/package.json
@@ -3,7 +3,7 @@
   "displayName": "Optuna Dashboard",
   "description": "Web Dashboard for Optuna",
   "publisher": "Optuna",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "license": "MIT",
   "icon": "images/optuna-logo.png",
   "engines": {