chore: draft release notes for 0.3.0 (#57)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 667eab4..397b110 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,16 @@
+# 0.3.0
+
+- Add ioredis plugin. (#53)
+- Endpoint cold start detection and marking. (#52)
+- Add mysql2 plugin. (#54)
+- Add AzureHttpTriggerPlugin. (#51)
+- Add Node 15 into test matrix. (#45)
+- Segment reference and reporting overhaul. (#50)
+- Add http ignore by method. (#49)
+- Add secure connection option. (#48)
+- BugFix: wrong context during many async spans. (#46)
+- Add Node Mongoose Plugin. (#44)
+
 # 0.2.0
 
 - Add AMQPLib plugin (RabbitMQ). (#34)
diff --git a/package.json b/package.json
index fa343d0..783d57b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "skywalking-backend-js",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "description": "The NodeJS agent for Apache SkyWalking",
   "homepage": "skywalking.apache.org",
   "main": "lib/index.js",