# Introduction
Typeorm migration are now associated to a given twenty-version from the
`UPGRADE_COMMAND_SUPPORTED_VERSIONS` that the current twenty core engine
handles
This way when we upgrade we retrieve the migrations that need to be run,
this will be useful for the cross-version incremental upgrade so we
preserve sequentiality
## What's new
To generate
```sh
npx nx database:migrate:generate twenty-server -- --name add-index-to-users
```
To apply all
```sh
npx nx database:migrate twenty-server
```
## Next
Introduce slow and fast typeorm migration in order to get rid of the
save point pattern in our code base
Create a clean and dedicated `InstanceUpgradeService` abstraction
e062343802