> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bytebase.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Bytebase 0.4.0 - Aug 19, 2021

## 🐞 Important Bug Fixes

### MySQL 5.7 compatibility

In the previous version, Bytebase couldn't sync the migration history properly because it used a MySQL 8.0 only feature.

## 🚀 New Features

~~### Backup and restore~~ (Sunset in 2.13.2)

User can now configure weekly automatic backup for the database. Meanwhile, user can also take manual backup anytime. Later on, User can restore the backup to a new database.

### Webhook ([detailed guide](https://docs.bytebase.com/use-bytebase/webhook-integration))

User can now configure webhook to allow Bytebase to post messages to the configured webhook endpoint upon varioius events. Bytebase currently supports following events:

* Issue creation
* Issue status change
* Issue task status change
* Issue info change such as its assignee, title, description
* Issue comment creation

#### Bytebase also supports following webhook providers

* Slack
* Discord
* Microsoft Teams
* DingTalk (钉钉)
* Feishu (飞书）
* WeCome (企业微信）

## 🎠 Community

* Thanks @zhj-hx for providing feedback and helping us troubleshooting the MySQL 5.7 compatibility issue
* Thanks @iczc for the PR.

## ⚙️ Install and Upgrade

* [Fresh install](/get-started/self-host/deploy-with-docker)

* [Upgrade](/get-started/self-host/upgrade)

*Before upgrading: 1) Back up the [metadata](https://www.bytebase.com/docs/administration/back-up-restore-metadata/) — in-place downgrade is not supported. 2) Do not run multiple containers on the same data directory. 3) Terraform users: upgrade Bytebase server first, then apply the new Terraform config.*