Release date: 2021-11-08 7.15 A.M UTC+6:00
Release by: Asif Saif Uddin
- Prevent from subscribing to empty channels (celery#7040)
- fix register_task method.
- Fire task failure signal on final reject (celery#6980)
- Limit pymongo version: <3.12.1 (celery#7041)
- Bump min kombu version to 5.2.1