peloyeje opened a new issue, #76590:
URL: https://github.com/apache/airflow/issues/76590
### Under which category would you file this issue?
Providers
### Apache Airflow version
3.3.2 (also seen on 2.11.0)
### What happened and how to reproduce it?
Celery 5.7.0 (released 2026-11-05) removed `retry` from
`celery.backends.database` in celery/celery#10130. `celery_executor_utils.py`
still imports it on `main`:
```python
from celery.backends.database import DatabaseBackend, Task as TaskDb, retry,
session_cleanup
```
The provider requires `celery[redis]>=5.5.0,<6`, so a fresh install picks
Celery 5.7.0. The scheduler then fails to load `CeleryExecutor`, and `airflow
celery worker` is not available.
```bash
AIRFLOW_HOME=$(mktemp -d) uv run --no-project --python 3.12 \
--with apache-airflow==3.3.2 \
--with apache-airflow-providers-celery==3.26.0 \
--with celery==5.7.0 \
python -c "from airflow.providers.celery.executors import
celery_executor_utils"
```
```
ImportError: cannot import name 'retry' from 'celery.backends.database'
```
The same command with `celery==5.6.3` and `kombu<5.7` imports without error.
### What you think should happen instead?
The provider should work with every Celery version it allows. `retry`
decorates `BulkStateFetcher._query_task_cls_from_db_backend`, so the fix needs
a retry for that query that does not come from Celery's database backend. Until
then, the provider could cap Celery at `<5.7`.
### Operating System
Debian 12 (bookworm)
### Deployment
Other Docker-based deployment
### Apache Airflow Provider(s)
celery
### Versions of Apache Airflow Providers
apache-airflow-providers-celery==3.26.0 (also 3.17.2)
### Official Helm Chart version
Not Applicable
### Kubernetes Version
Not Applicable
### Helm Chart configuration
Not Applicable
### Docker Image customizations
None needed to reproduce.
### Anything else?
Every installation that does not pin Celery hits this. Workaround: pin
`celery<5.7` and `kombu<5.7`.
### Are you willing to submit PR?
- [x] Yes I am willing to submit a PR!
### Code of Conduct
- [x] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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