Changes and Migration — SQLAlchemy 2.0 Documentation

Release: 2.0.42 | Release Date: July 29, 2025

# SQLAlchemy 2.0 Documentation

# Changes and Migration

SQLAlchemy changelogs and migration guides are now integrated within the main documentation.

## Current Migration Guide

For SQLAlchemy 2.0, there are two separate documents; the “Major Migration Guide” details how to update a SQLAlchemy 1.4 application to be compatible under SQLAlchemy 2.0. The “What’s New?” document details major new features, capabilities and behaviors in SQLAlchemy 2.0.

- SQLAlchemy 2.0 - Major Migration Guide
- What’s New in SQLAlchemy 2.0?

## Change logs

- 2.0 Changelog
- 1.4 Changelog
- 1.3 Changelog
- 1.2 Changelog
- 1.1 Changelog
- 1.0 Changelog
- 0.9 Changelog
- 0.8 Changelog
- 0.7 Changelog
- 0.6 Changelog
- 0.5 Changelog
- 0.4 Changelog
- 0.3 Changelog
- 0.2 Changelog
- 0.1 Changelog

## Older Migration Guides

- What’s New in SQLAlchemy 1.4?
- What’s New in SQLAlchemy 1.3?
- What’s New in SQLAlchemy 1.2?
- What’s New in SQLAlchemy 1.1?
- What’s New in SQLAlchemy 1.0?
- What’s New in SQLAlchemy 0.9?
- What’s New in SQLAlchemy 0.8?
- What’s New in SQLAlchemy 0.7?
- What’s New in SQLAlchemy 0.6?
- What’s new in SQLAlchemy 0.5?
- What’s new in SQLAlchemy 0.4?