> ## 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 0.12.0 - Jan 20, 2022

> Multi-tenancy Database Management. SQL Editor Improvement. Signup and login via GitLab EE/CE. DML workflow

## 🚀 New Features

### Multi-tenancy Database Management

Say you have many databases that use identical database schemas and need uniform management. For example, my highly-available service stores database data in different locations or data centers; or my SaaS service stores every customer/tenant's database data in their own databases. This multi-tenancy database management feature allows you to manage and update schemas for these hundreds of databases consistently and conveniently.

* Intelligent database management for tenants using identical schemas.
* Creating and managing database labels used for searching resources and identifying tenants.
* Flexible tenant database deployment such as multi-stage regional deployments.
* Schema updates are applied to all tenants consistently. Adding a new tenant database will use the same schema from existing tenants.

### SQL Editor

* Support keeping multiple editors under different tabs.
* Seamless transition to the schema change (DDL) / data change (DML) workflow from the SQL Editor.
* Project based permission control.
* Save Query: support saving the SQL statement, search it with highlight and delete.
* Query History: record all the executed queries.

### Signup and login via GitLab EE/CE

Most in-house dev teams use GitLab EE/CE to host their code. Bytebase has already supported VCS integration with GitLab to manage database schemas. We now further enhance the integration to allow users to use their GitLab EE/CE account to login Bytebase. Thanks @siu91 for the [suggestion](https://github.com/bytebase/bytebase/issues/27).

### Support data change (DML) workflow

Besides the schema change (DDL) workflow, we now also support the DML workflow. Thanks @TBACEJ for the suggestion [https://github.com/bytebase/bytebase/issues/337](https://github.com/bytebase/bytebase/issues/337)

## 🎄 Enhancement

* Surface detailed error to the UI when --debug is enabled when starting Bytebase

## 🐞 Bug fix

* Fix the VCS schema write back after migration when the git branch name contains slash (e.g. features/foo) [https://github.com/bytebase/bytebase/issues/396](https://github.com/bytebase/bytebase/issues/396)
* Fix the MySQL 8.0 window functions syntax error [https://github.com/bytebase/bytebase/issues/175](https://github.com/bytebase/bytebase/issues/175)

## 🎠 Community

* We are on the list of “The fastest-growing open-source startups in Q4 2021” by Runa Capital  [https://runacap.com/ross-index/q4-2021/](https://runacap.com/ross-index/q4-2021/)

<img src="https://mintcdn.com/dbx/NPAsXofNFOH9Jrw-/content/changelog/0.12.0/runa-capital.webp?fit=max&auto=format&n=NPAsXofNFOH9Jrw-&q=85&s=e1c259bb400e390f72437536eb852776" alt="_" width="800" height="460" data-path="content/changelog/0.12.0/runa-capital.webp" />

## ⚙️ 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.*