> For the complete documentation index, see [llms.txt](https://docs.message.anothercat.me/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.message.anothercat.me/dependabot-pip-discord-py-slash-command-2.2.0/self-hosting/migration.md).

# Migration

## v1 -> v2

In v2 the database is now managed with Tortoise-ORM and aerich.

### Steps

* Backup the database. There are a number of ways you can do this, the easiest is `pg_dump`
* Pull the latest `v1.x` tag, check that tag and then run the bot. **This step is vital to avoid data loss**.
* Pull v2.x tag from the repository then check it out.
* In the database uri in `config.py` replace `postgresql` with `postgres`
* Update packages with `pipenv install`
* Run `aerich update` in the root of the repo.
* Run the bot as normal.