diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4028064a..a40f68de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # CHANGE LOG
 
-## 2024-04-12 v0.0.2
+## 2024-04-12 v0.2.1
 
 - support send email
 
@@ -8,17 +8,51 @@ DB changes:
 
 - `db/2024-04-12-patch.sql`
 
-## 2024-04-10 v0.0.1
+## 2024-04-10 v0.2.0
 
-Breaking changes:
+### Breaking Changes
 
 - remove `ENABLE_ATTACHMENT` config
 - use rust wasm to parse email in frontend
 - deprecated api moved to `/api/v1`
 
-DB changes
+### Rust Mail Parser
 
-- `db/2024-04-09-patch.sql`
+由于 nodejs 解析 email 的库有些问题，此版本切换到使用 rust wasm 调用 rust 的mail 解析库
+
+- 速度更快，附件支持好，可以显示邮件的附件图片
+- 解析支持更多 rfc 规范
+
+Due to some problems with nodejs' email parsing library, this version switches to using rust wasm to call rust's mail parsing library.
+
+- Faster speed, good attachment support, can display attachment images of emails
+- Parsing supports more rfc specifications
+
+### DB changs
+
+将 `mails` 表废弃，新的 `mail` 的 `raw` 文本将直接存入 `raw_mails` 表.
+The `mails` table will be discarded, and the `raw` text of the new `mail` will be directly stored in the `raw_mails` table
+
+## Upgrade Step
+
+```bash
+git checkout v0.2.0
+cd worker
+wrangler d1 execute dev  --file=../db/2024-04-09-patch.sql
+pnpm run deploy
+cd ../frontend
+pnpm run deploy
+```
+
+注意：对于历史邮件，请使用部署新网页查看旧数据。
+Note: For historical messages, use the Deploy New web page to view old data.
+
+```bash
+git checkout feature/backup
+cd frontend
+# 创建一个新的 pages, 用于访问旧数据
+pnpm run deploy --project-name temp-email-v1
+```
 
 ## 2024-04-09 v0.0.0