> ## 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 2.21.0 - Jul 11, 2024

> Support configuring SQL review rules by database engine.

## 🚀 New Features

* Support configuring SQL review rules by database engine.
* Support connecting to Redis sentinel and native cluster.
* Add project settings:
  * Allow SQL editing after issue creation.
  * Automatically close issues after rollout completion.
* Support WeCom direct messages for issue activities.

## 🔔 Notable Changes

* Multi-tenancy configuration has been moved from project to database group.

## 🎄 Enhancements

* Rename "Cancel" issue to "Close" issue.
* Add an SSL connection switch for instance setup. The system default certificate is used if no CA certificate is specified.
* Optimize SQL Editor auto-completion without semicolons.
* Add more detailed task run log.
* Enhance Oracle parser performance.

## 🐞 Bug Fix

* Improve handling of schemas with unsupported Unicode characters.

## ⚙️ 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.*