=======
:release-date: 2020-06-24 2.40 P.M UTC+6:00
:release-by: Asif Saif Uddin

- Remove autoscale force_scale methods (6085).
- Fix autoscale test
- Pass ping destination to request
- chord: merge init options with run options
- Put back KeyValueStoreBackend.set method without state
- Added --range-prefix option to `celery multi` (6180) 
- Added as_list function to AsyncResult class (6179)
- Fix CassandraBackend error in threads or gevent pool (6147)
- Kombu 4.6.11

=======
:release-date: 2020-06-08 12.15 P.M UTC+6:00
:release-by: Asif Saif Uddin

- Add missing dependency on future (6146).
- ElasticSearch: Retry index if document was deleted between index
- fix windows build
- Customize the retry interval of chord_unlock tasks
- fix multi tests in local

=======
:release-date: 2020-06-03 11.00 A.M UTC+6:00
:release-by: Asif Saif Uddin

- Fix autoretry_for with explicit retry (6138).
- Kombu 4.6.10
- Use Django DB max age connection setting (fixes 4116).
- Add retry on recoverable exception for the backend (6122).
- Fix random distribution of jitter for exponential backoff.
- ElasticSearch: add setting to save meta as json.
- fix 6136. celery 4.4.3 always trying create /var/run/celery directory.
- Add task_internal_error signal (6049).

=======
:release-date: 2020-06-01 4.00 P.M UTC+6:00
:release-by: Asif Saif Uddin

- Fix backend utf-8 encoding in s3 backend .
- Kombu 4.6.9
- Task class definitions can have retry attributes (5869)
- Upgraded pycurl to the latest version that supports wheel.
- Add uptime to the stats inspect command
- Fixing issue 6019: unable to use mysql SSL parameters when getting
- Clean TraceBack to reduce memory leaks for exception task (6024)
- exceptions: NotRegistered: fix up language
- Give up sending a worker-offline message if transport is not connected
- Add Task to __all__ in celery.__init__.py
- Ensure a single chain object in a chain does not raise MaximumRecursion
- Fix autoscale when prefetch_multiplier is 1
- Allow start_worker to function without ping task
- Update celeryd.conf
- Fix correctly handle configuring the serializer for always_eager mode.
- Remove doubling of prefetch_count increase when prefetch_multiplier
- Fix eager function not returning result after retries
- return retry result if not throw and is_eager
- Always requeue while worker lost regardless of the redelivered flag
- Allow relative paths in the filesystem backend (6070)
- [Fixed Issue 6017]
- Avoid race condition due to task duplication.
- Exceptions must be old-style classes or derived from BaseException
- Fix windows build (6104) 
- Add encode to meta task in base.py (5894)
- Update time.py to solve the microsecond issues (5199)
- Change backend _ensure_not_eager error to warning
- Add priority support for 'celery.chord_unlock' task (5766)
- Change eager retry behaviour
- Avoid race condition in elasticsearch backend
- backends base get_many pass READY_STATES arg
- Add integration tests for Elasticsearch and fix _update
- feat(backend): Adds cleanup to ArangoDB backend
- remove jython check
- fix filesystem backend cannot not be serialized by picked

=======
:release-date: 2019-12-16 9.45 A.M UTC+6:00
:release-by: Asif Saif Uddin

- This version is officially supported on CPython 2.7,
3.5, 3.6, 3.7 & 3.8 and is also supported on PyPy2 & PyPy3.
- Kombu 4.6.7
- Task class definitions can have retry attributes (5869)

========
:release-date: 2019-12-07 21.05 A.M UTC+6:00
:release-by: Asif Saif Uddin

- Kombu 4.6.7
- Events bootstep disabled if no events (5807)
- SQS - Reject on failure (5843)
- Add a concurrency model with ThreadPoolExecutor (5099)
- Add auto expiry for DynamoDB backend (5805)
- Store extending result in all backends (5661)
- Fix a race condition when publishing a very large chord header (5850)
- Improve docs and test matrix

========
:release-date: 2019-11-11 00.45 A.M UTC+6:00
:release-by: Asif Saif Uddin

- Kombu 4.6.6
- Py-AMQP 2.5.2
- Python 3.8
- Numerious bug fixes
- PyPy 7.2

========
:release-date: 2019-08-14 23.00 P.M UTC+6:00
:release-by: Asif Saif Uddin

- Kombu 4.6.4
- Billiard 3.6.1
- Py-AMQP 2.5.1
- Avoid serializing datetime (5606)
- Fix: (group() | group()) not equals single group (5574)
- Revert "Broker connection uses the heartbeat setting from app config.
- Additional file descriptor safety checks.
- fixed call for null args (5631)
- Added generic path for cache backend.
- Fix Nested group(chain(group)) fails (5638)
- Use self.run() when overriding __call__ (5652)
- Fix termination of asyncloop (5671)
- Fix migrate task to work with both v1 and v2 of the message protocol.
- Updating task_routes config during runtime now have effect.

========
:release-date: 2019-06-15 4:00 A.M UTC+6:00
:release-by: Asif Saif Uddin

- Many bugs and regressions fixed.
- Kombu 4.6.3

========
:release-date: 2019-06-06 1:00 P.M UTC+6:00
:release-by: Asif Saif Uddin


- Python 3.4 drop

- Kombu 4.6.1

- Replace deprecated PyMongo methods usage (5443)

- Pass task request when calling update_state (5474)

- Fix bug in remaining time calculation in case of DST time change (5411)

- Fix missing task name when requesting extended result (5439)

- Fix `collections` import issue on Python 2.7 (5428)

- handle `AttributeError` in base backend exception deserializer (5435)

- Make `AsynPool`'s `proc_alive_timeout` configurable (5476)

- AMQP Support for extended result (5495)

- Fix SQL Alchemy results backend to work with extended result (5498)

- Fix restoring of exceptions with required param (5500)

- Django: Re-raise exception if `ImportError` not caused by missing tasks
module (5211)

- Django: fixed a regression putting DB connections in invalid state when
`CONN_MAX_AGE != 0` (5515)

- Fixed `OSError` leading to lost connection to broker (4457)

- Fixed an issue with inspect API unable get details of Request

- Fix mogodb backend authentication (5527)

- Change column type for Extended Task Meta args/kwargs to LargeBinary

- Handle http_auth in Elasticsearch backend results (5545)

- Fix task serializer being ignored with `task_always_eager=True` (5549)

- Fix `task.replace` to work in `.apply() as well as `.apply_async()` (5540)

- Fix sending of `worker_process_init` signal for solo worker (5562)

- Fix exception message upacking (5565)

- Add delay parameter function to beat_schedule (5558)

- Multiple documentation updates