# What this PR does
- Adds a Django management command and database fields required for the
Alertmanager V2 migration
- Adds a post-migration warning alert
<img width="1177" alt="Screenshot 2024-01-19 at 17 41 04"
src="https://github.com/grafana/oncall/assets/20116910/512ab22e-9a00-481e-883d-3dadfc95b587">
Related to https://github.com/grafana/oncall-private/issues/2260
## Checklist
- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
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