> ## 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 2.3.0 - Jun 21, 2023

> SQL Review for Snowflake. Mask data for Oracle. Export Center for data exports.

## 🚀 New Features

* [SQL Review](/sql-review/review-rules/) for Snowflake.
* [Mask data](/security/data-masking/overview/) for Oracle.
* Introduced [Export Center](/security/database-permission/export/#download-in-export-center) for data exports.

## 🎄 Enhancements

* Configure [External Approval Nodes](/change-database/approval/#external-approval) and apply to custom approval flows.
* Introduced **Send back** action for Approval Flows.
* Renamed Project's **Tenant Mode** to **Batch Mode**.
* Improved SQL Query and Export request flow experience.
* Improved project member page layout.

## 🐞 Bug Fixes

* Fixed a bug where migration fails with `invalid connection` when the connection timeouts.
* Fixed a bug where export data file content is truncated incorrectly by special characters.

## 🎠 Community

* Thanks to @whhe for fix: add missing rule mapping for OceanBase [#6576](https://github.com/bytebase/bytebase/pull/6576)

## 📰 Fresh off the press

* Which is better for you, Bytebase or Flyway? Check out [our latest guide](https://www.bytebase.com/blog/bytebase-vs-flyway/).
* [Evolution](https://www.bytebase.com/blog/top-database-schema-change-tool-evolution/) of database schema change tools.
* 🐘 We recently migrated to Neon for [SQL Chat](http://sqlchat.ai)'s setup. See [our journey](https://www.bytebase.com/blog/migrating-postgres-from-render-to-neon/).

## ⚙️ 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.*