# Upgrading to DefectDojo Version 2.42.x

**Hash Code changes**  
A few parsers have been updated to populate more fields. Some of these fields are part of the hash code calculation. To recalculate the hash code please execute the following command:

```
docker compose exec uwsgi /bin/bash -c "python manage.py dedupe.py --parser 'Horusec Scan' --hash_code_only"
docker compose exec uwsgi /bin/bash -c "python manage.py dedupe.py --parser 'Qualys Hacker Guardian Scan' --hash_code_only"
docker compose exec uwsgi /bin/bash -c "python manage.py dedupe.py --parser 'Red Hat Satellite' --hash_code_only"
```

This command has various command line arguments to tweak its behaviour, for example to trigger a run of the deduplication process.  
See [dedupe.py](https://github.com/DefectDojo/django-DefectDojo/blob/master/dojo/management/commands/dedupe.py) for more information.

Check the [Release Notes](https://github.com/DefectDojo/django-DefectDojo/releases/tag/2.42.0) for the contents of the release.