> ## 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 3.6.1 - May 08, 2025

> DML rollback supports unique indexes for major databases

## 🚀 New Features

* DML rollback supports unique indexes for MySQL, PostgreSQL, Oracle and MSSQL.
* Improve wizard for initial workspace creation.
* Introduce **Parallel tasks per rollout** and **CI Data Sampling Size** options in project settings.

## 🎄 Enhancements

* Allow removal of any roles — including `workspace member` — from any workspace user, including `allUser`.
* Support setting custom expiration days when granting project roles.

## 🐞 Bug Fix

* Fix PostgreSQL schema autocomplete for names with special 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.*