Celery - v5.3.0

Quality Improvements and Stability Enhancements

Celery 5.3 focuses on elevating the overall quality and stability of the project.
We have dedicated significant efforts to address various bugs, enhance performance,
and make improvements based on valuable user feedback.

Better Compatibility and Upgrade Confidence

Our goal with Celery 5.3 is to instill confidence in users who are currently
using Celery 4 or older versions. We want to assure you that upgrading to
Celery 5.3 will provide a more robust and reliable experience.

Dropped support for Python 3.7

Celery now requires Python 3.8 and above.

Python 3.7 will reach EOL in June, 2023.
In order to focus our efforts we have dropped support for Python 3.6 in
this version.

If you still require to run Celery using Python 3.7
you can still use Celery 5.2.
However we encourage you to upgrade to a supported Python version since
no further security patches will be applied for Python 3.7 after
the 23th of June, 2023.

Automatic re-connection on connection loss to broker

Unless :setting:broker_connection_retry_on_startup is set to False,
Celery will automatically retry reconnecting to the broker after
the first connection loss. :setting:broker_connection_retry controls
whether to automatically retry reconnecting to the broker for subsequent
reconnects.

Since the message broker does not track how many tasks were already fetched
before the connection was lost, Celery will reduce the prefetch count by
the number of tasks that are currently running multiplied by
:setting:worker_prefetch_multiplier.
The prefetch count will be gradually restored to the maximum allowed after
each time a task that was running before the connection was lost is complete

Kombu

Starting from v5.3.0, the minimum required version is Kombu 5.3.0.

Redis

redis-py 4.5.x is the new minimum required version.

SQLAlchemy

SQLAlchemy 1.4.x & 2.0.x is now supported in celery v5.3

Billiard

Minimum required version is now 4.1.0

Deprecate pytz and use zoneinfo

A switch have been made to zoneinfo for handling timezone data instead of pytz.

Support for out-of-tree worker pool implementations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Prior to version 5.3, Celery had a fixed notion of the worker pool types it supports.
Celery v5.3.0 introduces the the possibility of an out-of-tree worker pool implementation.
This feature ensure that the current worker pool implementations consistently call into
BasePool._get_info(), and enhance it to report the work pool class in use via the
"celery inspect stats" command. For example:

$ celery -A ... inspect stats
-> celery@freenas: OK
{
...
"pool": {
...
"implementation": "celery_aio_pool.pool:AsyncIOPool",

It can be used as follows:

Set the environment variable CELERY_CUSTOM_WORKER_POOL to the name of
an implementation of :class:celery.concurrency.base.BasePool in the
standard Celery format of "package:class".

Select this pool using '--pool custom'.

Signal::`worker_before_create_process`

Dispatched in the parent process, just before new child process is created in the prefork pool.
It can be used to clean up instances that don't behave well when forking.

.. code-block:: python
@signals.worker_before_create_process.connect
def clean_channels(**kwargs):
grpc_singleton.clean_channel()

Setting::`beat_cron_starting_deadline`

When using cron, the number of seconds :mod:~celery.bin.beat can look back
when deciding whether a cron schedule is due. When set to None, cronjobs that
are past due will always run immediately.

Redis result backend Global keyprefix

The global key prefix will be prepended to all keys used for the result backend,
which can be useful when a redis database is shared by different users.
By default, no prefix is prepended.

To configure the global keyprefix for the Redis result backend, use the
global_keyprefix key under :setting:result_backend_transport_options:

.. code-block:: python
app.conf.result_backend_transport_options = {
'global_keyprefix': 'my_prefix_'
}

Django

Minimum django version is bumped to v2.2.28.
Also added --skip-checks flag to bypass django core checks.

Make default worker state limits configurable

Previously, REVOKES_MAX, REVOKE_EXPIRES, SUCCESSFUL_MAX and
SUCCESSFUL_EXPIRES were hardcoded in celery.worker.state. This
version introduces CELERY_WORKER_ prefixed environment variables
with the same names that allow you to customize these values should
you need to.

Canvas stamping

The goal of the Stamping API is to give an ability to label the signature
and its components for debugging information purposes. For example, when
the canvas is a complex structure, it may be necessary to label some or
all elements of the formed structure. The complexity increases even more
when nested groups are rolled-out or chain elements are replaced. In such
cases, it may be necessary to understand which group an element is a part
of or on what nested level it is. This requires a mechanism that traverses
the canvas elements and marks them with specific metadata. The stamping API
allows doing that based on the Visitor pattern.

Known Issues

Canvas header stamping has issues in a hybrid Celery 4.x. & Celery 5.3.x
environment and is not safe for production use at the moment.

What's Changed

update docs by @auvipy in https://github.com/celery/celery/pull/7196
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7197
Remove Python 3.4 compatibility code by @thedrow in https://github.com/celery/celery/pull/7205
update docs to fix #7203 by @auvipy in https://github.com/celery/celery/pull/7209
call ping to set connection for avoiding error (take place of #7215) by @uuip in https://github.com/celery/celery/pull/7220
Documentation updates related to task names by @idahogray in https://github.com/celery/celery/pull/7223
Use importlib instead of discouraged pkg_resources by @nijel in https://github.com/celery/celery/pull/7218
Clarify relation between visibility timeout & predefined queues in SQS by @browniebroke in https://github.com/celery/celery/pull/7234
fix #7245 remove duplicated uid in command params by @Smixi in https://github.com/celery/celery/pull/7246
fix typo in exception by @Sygmei in https://github.com/celery/celery/pull/7262
Annotate test failures in PRs by @thedrow in https://github.com/celery/celery/pull/7243
Set max_line_length in .editorconfig to match flake8 config. by @atombrella in https://github.com/celery/celery/pull/7263
Fix typo in CELERY_SERIALIZER docs by @eldamir in https://github.com/celery/celery/pull/7267
Update link to exponential backoff and jitter by @DmytroLitvinov in https://github.com/celery/celery/pull/7271
Fix subscribed_to maybe empty by @uuip in https://github.com/celery/celery/pull/7232
fixed slight comment typo in celery/app/amqp.py by @imdark in https://github.com/celery/celery/pull/7297
Fix: Celery beat sleeps 300 seconds sometimes even when it should run a task within a few seconds (e.g. 13 seconds) #7290 by @rubgombar1 in https://github.com/celery/celery/pull/7291
Update def tsum references in canvas.rst by @mycaule in https://github.com/celery/celery/pull/7298
Make instances of parse_page consistent by @goldstar611 in https://github.com/celery/celery/pull/7301
Add security_key_password option by @tibotix in https://github.com/celery/celery/pull/7292
Small documentation update: task -> worker by @mbyrnepr2 in https://github.com/celery/celery/pull/7307
Update example in docs by @VojtechH in https://github.com/celery/celery/pull/7279
try new major release of pytest 7 by @auvipy in https://github.com/celery/celery/pull/7330
Fix typo in feature request issue template. by @atombrella in https://github.com/celery/celery/pull/7331
Remove unneeded from future imports in celery.contrib.abortable. by @atombrella in https://github.com/celery/celery/pull/7332
broker_connection_retry should no longer apply on startup by @thedrow in https://github.com/celery/celery/pull/7300
Remove ne methods by @atombrella in https://github.com/celery/celery/pull/7257
fix #7200 uid and gid by @Smixi in https://github.com/celery/celery/pull/7244
worker: Fix warm shutdown hanging due to timing of signal handler by @scottp-dpaw in https://github.com/celery/celery/pull/7339
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7352
update website url in README by @dulmandakh in https://github.com/celery/celery/pull/7354
Fix Get Started links by @gitdoluquita in https://github.com/celery/celery/pull/7359
doc: fix broken reference to schedule.is_due method by @hoefling in https://github.com/celery/celery/pull/7357
Update the package links. by @mvaled in https://github.com/celery/celery/pull/7373
Update remaining website URL in README by @jlost in https://github.com/celery/celery/pull/7374
Add mypy to the pipeline by @Kludex in https://github.com/celery/celery/pull/7383
Fix typo in comment by @Exifers in https://github.com/celery/celery/pull/7397
Annotate celery/states.py by @Kludex in https://github.com/celery/celery/pull/7395
Ignore coverage on TYPE_CHECKING by @Kludex in https://github.com/celery/celery/pull/7400
Expose more debugging information when receiving unkown tasks by @thedrow in https://github.com/celery/celery/pull/7405
Update sphinx-click to 3.1.0 by @pyup-bot in https://github.com/celery/celery/pull/7411
Pin pytest-subtests to latest version 0.7.0 by @pyup-bot in https://github.com/celery/celery/pull/7415
Pin pre-commit to latest version 2.18.1 by @pyup-bot in https://github.com/celery/celery/pull/7417
Pin msgpack to latest version 1.0.3 by @pyup-bot in https://github.com/celery/celery/pull/7418
Pin sqlalchemy to latest version 1.4.34 by @pyup-bot in https://github.com/celery/celery/pull/7412
Pin pycouchdb to latest version 1.14.1 by @pyup-bot in https://github.com/celery/celery/pull/7421
Update sphinx-testing to 1.0.1 by @pyup-bot in https://github.com/celery/celery/pull/7410
Pin pytest to latest version 7.1.1 by @pyup-bot in https://github.com/celery/celery/pull/7413
Pin cryptography to latest version 36.0.2 by @pyup-bot in https://github.com/celery/celery/pull/7419
Update pydocumentdb to 2.3.5 by @pyup-bot in https://github.com/celery/celery/pull/7420
Pin pyro4 to latest version 4.82 by @pyup-bot in https://github.com/celery/celery/pull/7425
Pin pylibmc to latest version 1.6.1 by @pyup-bot in https://github.com/celery/celery/pull/7423
Pin python-memcached to latest version 1.59 by @pyup-bot in https://github.com/celery/celery/pull/7424
Pin codecov to latest version 2.1.12 by @pyup-bot in https://github.com/celery/celery/pull/7428
Pin kombu to latest version 5.2.4 by @pyup-bot in https://github.com/celery/celery/pull/7427
Pin ephem to latest version 4.1.3 by @pyup-bot in https://github.com/celery/celery/pull/7430
Backport #7406 to 5.2 by @thedrow in https://github.com/celery/celery/pull/7431
Revert "Backport #7406 to 5.2" by @thedrow in https://github.com/celery/celery/pull/7432
Update documentation on docs/userguide/application.rst file by @krauss in https://github.com/celery/celery/pull/7438
Updated logo url in readme by @thejeshgn in https://github.com/celery/celery/pull/7439
Update sphinx-click to 4.0.0 by @pyup-bot in https://github.com/celery/celery/pull/7440
Avoid importing buf_t from billiard's compat module as it was removed. by @thedrow in https://github.com/celery/celery/pull/7446
Avoid negating a constant in a loop. by @thedrow in https://github.com/celery/celery/pull/7443
Ensure expiration is of float type when migrating tasks by @damjankuznar in https://github.com/celery/celery/pull/7385
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7450
Annotate celery/fixups by @Kludex in https://github.com/celery/celery/pull/7399
Fix: code block formatting for task deprecation by @marksweb in https://github.com/celery/celery/pull/7453
Update sphinx-click to 4.0.1 by @pyup-bot in https://github.com/celery/celery/pull/7454
celeryproject.org links in github templates by @tisdall in https://github.com/celery/celery/pull/7442
fix userguide deamonizing by changing the systemd --version by system… by @simon-mazenoux in https://github.com/celery/celery/pull/7457
Update sphinx-click to 4.0.2 by @pyup-bot in https://github.com/celery/celery/pull/7459
load_extension_class_names - correct module_name by @DamianZaremba in https://github.com/celery/celery/pull/7406
Integration test fix by @dobosevych in https://github.com/celery/celery/pull/7460
docs: Move task sidebar blocks into main column [#7449] by @marksweb in https://github.com/celery/celery/pull/7463
try pymongo[srv]>=4.0.2 by @auvipy in https://github.com/celery/celery/pull/7469
Ensure task compression actually happens when setting task_compression by @thedrow in https://github.com/celery/celery/pull/7470
Rabbitmq CI integration by @dobosevych in https://github.com/celery/celery/pull/7472
Update sphinx-click to 4.0.3 by @pyup-bot in https://github.com/celery/celery/pull/7473
Use inspect.getgeneratorstate in asynpool.gen_not_started by @colesbury in https://github.com/celery/celery/pull/7476
Extend cassandra to cover AstraDB as well by @hemidactylus in https://github.com/celery/celery/pull/7356
update actions v3+ by @auvipy in https://github.com/celery/celery/pull/7477
docs: fix userguide test with missing .get() by @simon-mazenoux in https://github.com/celery/celery/pull/7479
Config file for pyup.io by @pyup-bot in https://github.com/celery/celery/pull/7142
Missing f prefix on f-strings fix by @code-review-doctor in https://github.com/celery/celery/pull/7481
Fix eventlet example from not running. by @Galdanwing in https://github.com/celery/celery/pull/7487
azure-storage-blob>=12.11.0 by @auvipy in https://github.com/celery/celery/pull/7494
Update old link to new website by @imapanda in https://github.com/celery/celery/pull/7499
modify libs and os by @auvipy in https://github.com/celery/celery/pull/7504
Make start_worker, setup_default_app reusable outside of pytest by @yonran in https://github.com/celery/celery/pull/7503
fix undefined variable in retry example code by @tisdall in https://github.com/celery/celery/pull/7514
revert celery#5941 so note below makes sense again by @tisdall in https://github.com/celery/celery/pull/7441
Fix incompability with new couchbase version by @dobosevych in https://github.com/celery/celery/pull/7518
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7520
docs: Linking a task to a group does not guarantee all group tasks will finish first by @ymorgenstern in https://github.com/celery/celery/pull/7522
Update error message to link to celeryq.dev by @troyswanson in https://github.com/celery/celery/pull/7521
Ensure a proper error message is raised when id for key is empty by @thedrow in https://github.com/celery/celery/pull/7447
Update setup.py by removing comma by @auvipy in https://github.com/celery/celery/pull/7534
Add notes about ignore_result attribute regarding canvas by @Aktan-A in https://github.com/celery/celery/pull/7541
pytest-subtests==0.8.0 by @auvipy in https://github.com/celery/celery/pull/7545
redis>=4.2.2 by @auvipy in https://github.com/celery/celery/pull/7493
cryptography~=37.0.1 by @auvipy in https://github.com/celery/celery/pull/7492
Crontab string representation does not match UNIX crontab expression by @espoirMur in https://github.com/celery/celery/pull/7259
Worker should exit with ctx.exit to get the right exitcode for non-zero cases by @palfrey in https://github.com/celery/celery/pull/7544
boto3>=1.22.2 by @auvipy in https://github.com/celery/celery/pull/7496
cassandra-driver>=3.25.0,<4 by @auvipy in https://github.com/celery/celery/pull/7495
pyArango>=2.0.1 by @auvipy in https://github.com/celery/celery/pull/7491
Fix expiration check by @dobosevych in https://github.com/celery/celery/pull/7552
Use callable built-in by @gabrielsoldani in https://github.com/celery/celery/pull/7553
Include dont_autoretry_for option in tasks. by @dobosevych in https://github.com/celery/celery/pull/7556
only pull requests and some other updates by @auvipy in https://github.com/celery/celery/pull/7559
setup-python v4 by @auvipy in https://github.com/celery/celery/pull/7558
fix: Syntax error in arango query by @aquiline in https://github.com/celery/celery/pull/7554
Fix custom headers propagation on task retries by @shedar in https://github.com/celery/celery/pull/7555
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7567
billiard & other update by @auvipy in https://github.com/celery/celery/pull/7489
Scheduled weekly dependency update for week 24 by @pyup-bot in https://github.com/celery/celery/pull/7566
docs: assorted fixes by @atiabbz in https://github.com/celery/celery/pull/7572
[Documentation] Fix order of arguments for clarity by @EricAtORS in https://github.com/celery/celery/pull/7543
Removed Flower monitor screenshot by @javad94 in https://github.com/celery/celery/pull/7579
Scheduled weekly dependency update for week 25 by @pyup-bot in https://github.com/celery/celery/pull/7589
Silence backend warning when eager results are stored by @kwikwag in https://github.com/celery/celery/pull/7268
Reduce prefetch count on restart and gradually restore it by @thedrow in https://github.com/celery/celery/pull/7350
Update CONTRIBUTORS.txt by @alekibango in https://github.com/celery/celery/pull/7590
Modify example debug_task to ignore result by @wieczorek1990 in https://github.com/celery/celery/pull/7594
Minor refactors, found by static analysis by @gabrielsoldani in https://github.com/celery/celery/pull/7587
Improve workflow primitive subclassing by @EricAtORS in https://github.com/celery/celery/pull/7593
test kombu>=5.3.0a1,<6.0 by @auvipy in https://github.com/celery/celery/pull/7598
Canvas Header Stamping by @dobosevych in https://github.com/celery/celery/pull/7384
Update task-rejected signature by @kackyt in https://github.com/celery/celery/pull/7599
async chords should pass it's kwargs to the group/body by @EricAtORS in https://github.com/celery/celery/pull/7597
beat: Suppress banner output with the quiet option by @gabrielsoldani in https://github.com/celery/celery/pull/7608
Fix honor Django's TIME_ZONE setting by @vanschelven in https://github.com/celery/celery/pull/7613
Fix link to open source tripwire in docs by @charlax in https://github.com/celery/celery/pull/7621
Don't warn about DEBUG=True for Django by @vanschelven in https://github.com/celery/celery/pull/7626
Scheduled weekly dependency update for week 29 by @pyup-bot in https://github.com/celery/celery/pull/7638
Fixed the on_after_finalize cannot access tasks due to deadlock(Fixes #3589) by @954-Ivory in https://github.com/celery/celery/pull/7652
Update tasks.rst by @denys-pidlisnyi in https://github.com/celery/celery/pull/7653
Fix errors on code blocks rendering in docs by @hoefling in https://github.com/celery/celery/pull/7655
kombu>=5.3.0b1,<6.0 by @auvipy in https://github.com/celery/celery/pull/7659
update docs website link by @xncbf in https://github.com/celery/celery/pull/7660
fix doc rendering issues, part I by @hoefling in https://github.com/celery/celery/pull/7656
Make default worker state limits configurable by @gabrielsoldani in https://github.com/celery/celery/pull/7609
Only clear the cache if there are no active writers. by @naomielst in https://github.com/celery/celery/pull/7273
BLM-2: Adding unit tests to chord clone by @Nusnus in https://github.com/celery/celery/pull/7668
Fix unknown task error typo by @dcecile in https://github.com/celery/celery/pull/7675
rename redis integration test class so that tests are executed by @wochinge in https://github.com/celery/celery/pull/7684
Check certificate/private key type when loading them by @qrmt in https://github.com/celery/celery/pull/7680
Added integration test_chord_header_id_duplicated_on_rabbitmq_msg_duplication() by @Nusnus in https://github.com/celery/celery/pull/7692
New feature flag: allow_error_cb_on_chord_header - allowing setting an error callback on chord header by @Nusnus in https://github.com/celery/celery/pull/7712
Update README.rst sorting Python/Celery versions by @andrebr in https://github.com/celery/celery/pull/7714
Fixed a bug where stamping a chord body would not use the correct stamping method by @Nusnus in https://github.com/celery/celery/pull/7722
Fixed doc duplication typo for Signature.stamp() by @Nusnus in https://github.com/celery/celery/pull/7725
Fix issue 7726: variable used in finally block may not be instantiated by @woutdenolf in https://github.com/celery/celery/pull/7727
Fixed bug in chord stamping with another chord as a body + unit test by @Nusnus in https://github.com/celery/celery/pull/7730
Use "describe_table" not "create_table" to check for existence of DynamoDB table by @maxfirman in https://github.com/celery/celery/pull/7734
Enhancements for task_allow_error_cb_on_chord_header tests and docs by @Nusnus in https://github.com/celery/celery/pull/7744
Improved custom stamping visitor documentation by @Nusnus in https://github.com/celery/celery/pull/7745
Improved the coverage of test_chord_stamping_body_chord() by @Nusnus in https://github.com/celery/celery/pull/7748
billiard >= 3.6.3.0,<5.0 for rpm by @auvipy in https://github.com/celery/celery/pull/7764
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7625
Fixed memory leak with ETA tasks at connection error when worker_cancel_long_running_tasks_on_connection_loss is enabled by @Nusnus in https://github.com/celery/celery/pull/7771
Fixed bug where a chord with header of type tuple was not supported in the link_error flow for task_allow_error_cb_on_chord_header flag by @Nusnus in https://github.com/celery/celery/pull/7772
Scheduled weekly dependency update for week 38 by @pyup-bot in https://github.com/celery/celery/pull/7767
recreate_module: set spec to the new module by @skshetry in https://github.com/celery/celery/pull/7773
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7775
Override integration test config using integration-tests-config.json by @thedrow in https://github.com/celery/celery/pull/7778
Fixed error handling bugs due to upgrade to a newer version of billiard by @Nusnus in https://github.com/celery/celery/pull/7781
Do not recommend using easy_install anymore by @jugmac00 in https://github.com/celery/celery/pull/7789
GitHub Workflows security hardening by @sashashura in https://github.com/celery/celery/pull/7768
Update ambiguous acks_late doc by @Zhong-z in https://github.com/celery/celery/pull/7728
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7799
billiard >=4.0.2,<5.0 by @auvipy in https://github.com/celery/celery/pull/7720
importlib_metadata remove deprecated entry point interfaces by @woutdenolf in https://github.com/celery/celery/pull/7785
Scheduled weekly dependency update for week 41 by @pyup-bot in https://github.com/celery/celery/pull/7798
pyzmq>=22.3.0 by @auvipy in https://github.com/celery/celery/pull/7497
Remove amqp from the BACKEND_ALISES list by @Kludex in https://github.com/celery/celery/pull/7805
Replace print by logger.debug by @Kludex in https://github.com/celery/celery/pull/7809
Ignore coverage on except ImportError by @Kludex in https://github.com/celery/celery/pull/7812
Add mongodb dependencies to test.txt by @Kludex in https://github.com/celery/celery/pull/7810
Fix grammar typos on the whole project by @Kludex in https://github.com/celery/celery/pull/7815
Remove isatty wrapper function by @Kludex in https://github.com/celery/celery/pull/7814
Remove unused variable _range by @Kludex in https://github.com/celery/celery/pull/7813
Add type annotation on concurrency/threads.py by @Kludex in https://github.com/celery/celery/pull/7808
Fix linter workflow by @Kludex in https://github.com/celery/celery/pull/7816
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7822
Scheduled weekly dependency update for week 42 by @pyup-bot in https://github.com/celery/celery/pull/7821
Remove .cookiecutterrc by @Kludex in https://github.com/celery/celery/pull/7830
Remove .coveragerc file by @Kludex in https://github.com/celery/celery/pull/7826
kombu>=5.3.0b2 by @auvipy in https://github.com/celery/celery/pull/7834
Fix readthedocs build failure by @woutdenolf in https://github.com/celery/celery/pull/7835
Fixed bug in group, chord, chain stamp() method, where the visitor overrides the previously stamps in tasks of these objects by @Nusnus in https://github.com/celery/celery/pull/7825
Stabilized test_mutable_errback_called_by_chord_from_group_fail_multiple by @Nusnus in https://github.com/celery/celery/pull/7837
Use SPDX license expression in project metadata by @RazerM in https://github.com/celery/celery/pull/7845
New control command revoke_by_stamped_headers by @Nusnus in https://github.com/celery/celery/pull/7838
Clarify wording in Redis priority docs by @strugee in https://github.com/celery/celery/pull/7853
Fix non working example of using celery_worker pytest fixture by @paradox-lab in https://github.com/celery/celery/pull/7857
Removed the mandatory requirement to include stamped_headers key when implementing on_signature() by @Nusnus in https://github.com/celery/celery/pull/7856
Update serializer docs by @sondrelg in https://github.com/celery/celery/pull/7858
Remove reference to old Python version by @Kludex in https://github.com/celery/celery/pull/7829
Added on_replace() to Task to allow manipulating the replaced sig with custom changes at the end of the task.replace() by @Nusnus in https://github.com/celery/celery/pull/7860
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7869
Add clarifying information to completed_count documentation by @hankehly in https://github.com/celery/celery/pull/7873
Stabilized test_revoked_by_headers_complex_canvas by @Nusnus in https://github.com/celery/celery/pull/7877
StampingVisitor will visit the callbacks and errbacks of the signature by @Nusnus in https://github.com/celery/celery/pull/7867
Fix "rm: no operand" error in clean-pyc script by @hankehly in https://github.com/celery/celery/pull/7878
Add --skip-checks flag to bypass django core checks by @mudetz in https://github.com/celery/celery/pull/7859
Scheduled weekly dependency update for week 44 by @pyup-bot in https://github.com/celery/celery/pull/7868
Added two new unit tests to callback stamping by @Nusnus in https://github.com/celery/celery/pull/7882
Sphinx extension: use inspect.signature to make it Python 3.11 compatible by @mathiasertl in https://github.com/celery/celery/pull/7879
cryptography==38.0.3 by @auvipy in https://github.com/celery/celery/pull/7886
Canvas.py doc enhancement by @Nusnus in https://github.com/celery/celery/pull/7889
Fix typo by @sondrelg in https://github.com/celery/celery/pull/7890
fix typos in optional tests by @hsk17 in https://github.com/celery/celery/pull/7876
Canvas.py doc enhancement by @Nusnus in https://github.com/celery/celery/pull/7891
Fix revoke by headers tests stability by @Nusnus in https://github.com/celery/celery/pull/7892
feat: add global keyprefix for backend result keys by @kaustavb12 in https://github.com/celery/celery/pull/7620
Canvas.py doc enhancement by @Nusnus in https://github.com/celery/celery/pull/7897
fix(sec): upgrade sqlalchemy to 1.2.18 by @chncaption in https://github.com/celery/celery/pull/7899
Canvas.py doc enhancement by @Nusnus in https://github.com/celery/celery/pull/7902
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7904
Fix test warnings by @ShaheedHaque in https://github.com/celery/celery/pull/7906
Support for out-of-tree worker pool implementations by @ShaheedHaque in https://github.com/celery/celery/pull/7880
Canvas.py doc enhancement by @Nusnus in https://github.com/celery/celery/pull/7907
Use bound task in base task example. Closes #7909 by @WilliamDEdwards in https://github.com/celery/celery/pull/7910
Allow the stamping visitor itself to set the stamp value type instead of casting it to a list by @Nusnus in https://github.com/celery/celery/pull/7914
Stamping a task left the task properties dirty by @Nusnus in https://github.com/celery/celery/pull/7916
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7917
Fixed bug when chaining a chord with a group by @Nusnus in https://github.com/celery/celery/pull/7919
Fixed bug in the stamping visitor mechanism where the request was lacking the stamps in the 'stamps' property by @Nusnus in https://github.com/celery/celery/pull/7928
Fixed bug in task_accepted() where the request was not added to the requests but only to the active_requests by @Nusnus in https://github.com/celery/celery/pull/7929
Fix bug in TraceInfo._log_error() where the real exception obj was hiding behind 'ExceptionWithTraceback' by @Nusnus in https://github.com/celery/celery/pull/7930
Added integration test: test_all_tasks_of_canvas_are_stamped() by @Nusnus in https://github.com/celery/celery/pull/7931
Added new example for the stamping mechanism: examples/stamping by @Nusnus in https://github.com/celery/celery/pull/7933
Fixed a bug where replacing a stamped task and stamping it again by @Nusnus in https://github.com/celery/celery/pull/7934
Bugfix for nested group stamping on task replace by @Nusnus in https://github.com/celery/celery/pull/7935
Added integration test test_stamping_example_canvas() by @Nusnus in https://github.com/celery/celery/pull/7937
Fixed a bug in losing chain links when unchaining an inner chain with links by @Nusnus in https://github.com/celery/celery/pull/7938
Removing as not mandatory by @auvipy in https://github.com/celery/celery/pull/7885
Housekeeping for Canvas.py by @Nusnus in https://github.com/celery/celery/pull/7942
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7927
Scheduled weekly dependency update for week 50 by @pyup-bot in https://github.com/celery/celery/pull/7954
try pypy 3.9 in CI by @auvipy in https://github.com/celery/celery/pull/7956
sqlalchemy==1.4.45 by @auvipy in https://github.com/celery/celery/pull/7943
billiard>=4.1.0,<5.0 by @auvipy in https://github.com/celery/celery/pull/7957
feat(typecheck): allow changing type check behavior on the app level; by @moaddib666 in https://github.com/celery/celery/pull/7952
Add broker_channel_error_retry option by @nkns165 in https://github.com/celery/celery/pull/7951
Add beat_cron_starting_deadline_seconds to prevent unwanted cron runs by @abs25 in https://github.com/celery/celery/pull/7945
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7966
Scheduled weekly dependency update for week 51 by @pyup-bot in https://github.com/celery/celery/pull/7965
Added doc to "retry_errors" newly supported field of "publish_retry_policy" of the task namespace by @Nusnus in https://github.com/celery/celery/pull/7967
Renamed from master to main in the docs and the CI workflows by @Nusnus in https://github.com/celery/celery/pull/7968
Fix docs for the exchange to use with worker_direct by @alessio-b2c2 in https://github.com/celery/celery/pull/7973
Pin redis==4.3.4 by @auvipy in https://github.com/celery/celery/pull/7974
return list of nodes to make sphinx extension compatible with Sphinx 6.0 by @mathiasertl in https://github.com/celery/celery/pull/7978
use version range redis>=4.2.2,<4.4.0 by @auvipy in https://github.com/celery/celery/pull/7980
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/7982
Scheduled weekly dependency update for week 01 by @pyup-bot in https://github.com/celery/celery/pull/7987
Add annotations to minimise differences with celery-aio-pool's tracer.py. by @ShaheedHaque in https://github.com/celery/celery/pull/7925
Fixed bug where linking a stamped task did not add the stamp to the link's options by @Nusnus in https://github.com/celery/celery/pull/7992
sqlalchemy==1.4.46 by @auvipy in https://github.com/celery/celery/pull/7995
pytz by @auvipy in https://github.com/celery/celery/pull/8002
Fix few typos, provide configuration + workflow for codespell to catch any new by @yarikoptic in https://github.com/celery/celery/pull/8023
RabbitMQ links update by @arnisjuraga in https://github.com/celery/celery/pull/8031
Ignore files generated by tests by @Kludex in https://github.com/celery/celery/pull/7846
Revert "sqlalchemy==1.4.46 (#7995)" by @Nusnus in https://github.com/celery/celery/pull/8033
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/8039
Fixed bug with replacing a stamped task with a chain or a group (inc. links/errlinks) by @Nusnus in https://github.com/celery/celery/pull/8034
Fixed formatting in setup.cfg that caused flake8 to misbehave by @Nusnus in https://github.com/celery/celery/pull/8044
Removed duplicated import Iterable by @Nusnus in https://github.com/celery/celery/pull/8046
Fix docs by @Nusnus in https://github.com/celery/celery/pull/8047
Document --logfile default by @strugee in https://github.com/celery/celery/pull/8057
Stamping Mechanism Refactoring by @Nusnus in https://github.com/celery/celery/pull/8045
result_backend_thread_safe config shares backend across threads by @CharlieTruong in https://github.com/celery/celery/pull/8058
Fix cronjob that use day of month and negative UTC timezone by @pkyosx in https://github.com/celery/celery/pull/8053
Stamping Mechanism Examples Refactoring by @Nusnus in https://github.com/celery/celery/pull/8060
Fixed bug in Task.on_stamp_replaced() by @Nusnus in https://github.com/celery/celery/pull/8061
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/8065
Stamping Mechanism Refactoring 2 by @Nusnus in https://github.com/celery/celery/pull/8064
Changed default append_stamps from True to False (meaning duplicates … by @Nusnus in https://github.com/celery/celery/pull/8068
typo in comment: mailicious => malicious by @yanick in https://github.com/celery/celery/pull/8072
Fix command for starting flower with specified broker URL by @ShukantPal in https://github.com/celery/celery/pull/8071
Improve documentation on ETA/countdown tasks (#8069) by @norbertcyran in https://github.com/celery/celery/pull/8075
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/8079
fix functiom name by @cuishuang in https://github.com/celery/celery/pull/8087
Update CELERY_TASK_EAGER setting in user guide by @thebalaa in https://github.com/celery/celery/pull/8085
Stamping documentation fixes & cleanups by @Nusnus in https://github.com/celery/celery/pull/8092
switch to maintained pyro5 by @auvipy in https://github.com/celery/celery/pull/8093
udate dependencies of tests by @auvipy in https://github.com/celery/celery/pull/8095
cryptography==39.0.1 by @auvipy in https://github.com/celery/celery/pull/8096
Annotate celery/security/certificate.py by @Kludex in https://github.com/celery/celery/pull/7398
Deprecate parse_iso8601 in favor of fromisoformat by @stumpylog in https://github.com/celery/celery/pull/8098
pytest==7.2.2 by @auvipy in https://github.com/celery/celery/pull/8106
Type annotations for celery/utils/text.py by @max-muoto in https://github.com/celery/celery/pull/8107
Update web framework URLs by @sblondon in https://github.com/celery/celery/pull/8112
Fix contribution URL by @sblondon in https://github.com/celery/celery/pull/8111
Trying to clarify CERT_REQUIRED by @pamelafox in https://github.com/celery/celery/pull/8113
Fix potential AttributeError on 'stamps' by @Darkheir in https://github.com/celery/celery/pull/8115
Type annotations for celery/apps/beat.py by @max-muoto in https://github.com/celery/celery/pull/8108
Fixed bug where retrying a task loses its stamps by @Nusnus in https://github.com/celery/celery/pull/8120
Type hints for celery/schedules.py by @max-muoto in https://github.com/celery/celery/pull/8114
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/8122
Reference Gopher Celery in README by @marselester in https://github.com/celery/celery/pull/8131
Update sqlalchemy.txt by @auvipy in https://github.com/celery/celery/pull/8136
azure-storage-blob 12.15.0 by @auvipy in https://github.com/celery/celery/pull/8137
test kombu 5.3.0b3 by @auvipy in https://github.com/celery/celery/pull/8138
fix: add expire string parse. by @Bidaya0 in https://github.com/celery/celery/pull/8134
Fix worker crash on un-pickleable exceptions by @youtux in https://github.com/celery/celery/pull/8133
CLI help output: avoid text rewrapping by click by @woutdenolf in https://github.com/celery/celery/pull/8152
Warn when an unnamed periodic task override another one. by @iurisilvio in https://github.com/celery/celery/pull/8143
Fix Task.handle_ignore not wrapping exceptions properly by @youtux in https://github.com/celery/celery/pull/8149
Hotfix for (#8120) - Stamping bug with retry by @Nusnus in https://github.com/celery/celery/pull/8158
Fix integration test by @youtux in https://github.com/celery/celery/pull/8156
Fixed bug in revoke_by_stamped_headers where impl did not match doc by @Nusnus in https://github.com/celery/celery/pull/8162
Align revoke and revoke_by_stamped_headers return values (terminate=True) by @Nusnus in https://github.com/celery/celery/pull/8163
Update & simplify GHA pip caching by @stumpylog in https://github.com/celery/celery/pull/8164
Update auth.txt by @auvipy in https://github.com/celery/celery/pull/8167
Update test.txt versions by @auvipy in https://github.com/celery/celery/pull/8173
remove extra = from test.txt by @auvipy in https://github.com/celery/celery/pull/8179
Update sqs.txt kombu[sqs]>=5.3.0b3 by @auvipy in https://github.com/celery/celery/pull/8174
Added signal triggered before fork by @jaroslawporada in https://github.com/celery/celery/pull/8177
Update documentation on SQLAlchemy by @max-muoto in https://github.com/celery/celery/pull/8188
Deprecate pytz and use zoneinfo by @max-muoto in https://github.com/celery/celery/pull/8159
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/8191
Update dev.txt by @auvipy in https://github.com/celery/celery/pull/8192
Update test.txt by @auvipy in https://github.com/celery/celery/pull/8193
Update test-integration.txt by @auvipy in https://github.com/celery/celery/pull/8194
Update zstd.txt by @auvipy in https://github.com/celery/celery/pull/8195
Update s3.txt by @auvipy in https://github.com/celery/celery/pull/8196
Update msgpack.txt by @auvipy in https://github.com/celery/celery/pull/8199
Update solar.txt by @auvipy in https://github.com/celery/celery/pull/8198
Add Semgrep to CI by @Nusnus in https://github.com/celery/celery/pull/8201
Added semgrep to README.rst by @Nusnus in https://github.com/celery/celery/pull/8202
Update django.txt by @auvipy in https://github.com/celery/celery/pull/8197
Update redis.txt 4.3.6 by @auvipy in https://github.com/celery/celery/pull/8161
start removing codecov from pypi by @auvipy in https://github.com/celery/celery/pull/8206
Update test.txt dependencies by @auvipy in https://github.com/celery/celery/pull/8205
Improved doc for: worker_deduplicate_successful_tasks by @Nusnus in https://github.com/celery/celery/pull/8209
Renamed revoked_headers to revoked_stamps by @Nusnus in https://github.com/celery/celery/pull/8210
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/8223
Ensure argument for map is JSON serializable by @candleindark in https://github.com/celery/celery/pull/8229
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/8239
Changelog hotfix by @Nusnus in https://github.com/celery/celery/pull/8245
add missing dependency by @woutdenolf in https://github.com/celery/celery/pull/8247
chore(build): clean setup.py by @stegayet in https://github.com/celery/celery/pull/8248
[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/celery/celery/pull/8252
Update test-ci-base.txt by @auvipy in https://github.com/celery/celery/pull/8255
Update test.txt dependencies by @auvipy in https://github.com/celery/celery/pull/8263
Fix exc_type being exception instance rather than type by @Mapiarz in https://github.com/celery/celery/pull/8257
Update default.txt to 5.3.0rc1 by @auvipy in https://github.com/celery/celery/pull/8264
Fixed revoking tasks by stamped headers by @Nusnus in https://github.com/celery/celery/pull/8269
start adding sqla v 2.0 compatibility by @auvipy in https://github.com/celery/celery/pull/8050
Support sqlalchemy 2.0 in tests by @danigm in https://github.com/celery/celery/pull/8271
Update test-ci-base.txt by @auvipy in https://github.com/celery/celery/pull/8273
Update sqs.txt kombu 5.3.0rc1 by @auvipy in https://github.com/celery/celery/pull/8274
Fix docker by @Nusnus in https://github.com/celery/celery/pull/8275
Update default.txt by @auvipy in https://github.com/celery/celery/pull/8277
Update redis.txt 4.5 by @auvipy in https://github.com/celery/celery/pull/8278
Update pkgutils.txt by @auvipy in https://github.com/celery/celery/pull/8279
remove python 3.7 from tests by @auvipy in https://github.com/celery/celery/pull/8280
ugrade syntax to py3.8 by @auvipy in https://github.com/celery/celery/pull/8281
Update setup.cfg by @auvipy in https://github.com/celery/celery/pull/8287
Update dynamodb.txt deps by @auvipy in https://github.com/celery/celery/pull/8291
Update auth.txt 41.0.1 by @auvipy in https://github.com/celery/celery/pull/8290
Update librabbitmq.txt > 2.0.0 by @auvipy in https://github.com/celery/celery/pull/8292
test kombu 5.3.0 & minor doc update by @auvipy in https://github.com/celery/celery/pull/8294
Whatsnew in Celery 5.3.0 by @auvipy in https://github.com/celery/celery/pull/8300

New Contributors

@uuip made their first contribution in https://github.com/celery/celery/pull/7220
@idahogray made their first contribution in https://github.com/celery/celery/pull/7223
@Smixi made their first contribution in https://github.com/celery/celery/pull/7246
@Sygmei made their first contribution in https://github.com/celery/celery/pull/7262
@eldamir made their first contribution in https://github.com/celery/celery/pull/7267
@imdark made their first contribution in https://github.com/celery/celery/pull/7297
@rubgombar1 made their first contribution in https://github.com/celery/celery/pull/7291
@mycaule made their first contribution in https://github.com/celery/celery/pull/7298
@goldstar611 made their first contribution in https://github.com/celery/celery/pull/7301
@tibotix made their first contribution in https://github.com/celery/celery/pull/7292
@mbyrnepr2 made their first contribution in https://github.com/celery/celery/pull/7307
@VojtechH made their first contribution in https://github.com/celery/celery/pull/7279
@scottp-dpaw made their first contribution in https://github.com/celery/celery/pull/7339
@dulmandakh made their first contribution in https://github.com/celery/celery/pull/7354
@gitdoluquita made their first contribution in https://github.com/celery/celery/pull/7359
@hoefling made their first contribution in https://github.com/celery/celery/pull/7357
@jlost made their first contribution in https://github.com/celery/celery/pull/7374
@Kludex made their first contribution in https://github.com/celery/celery/pull/7383
@Exifers made their first contribution in https://github.com/celery/celery/pull/7397
@pyup-bot made their first contribution in https://github.com/celery/celery/pull/7411
@krauss made their first contribution in https://github.com/celery/celery/pull/7438
@thejeshgn made their first contribution in https://github.com/celery/celery/pull/7439
@damjankuznar made their first contribution in https://github.com/celery/celery/pull/7385
@marksweb made their first contribution in https://github.com/celery/celery/pull/7453
@tisdall made their first contribution in https://github.com/celery/celery/pull/7442
@simon-mazenoux made their first contribution in https://github.com/celery/celery/pull/7457
@DamianZaremba made their first contribution in https://github.com/celery/celery/pull/7406
@colesbury made their first contribution in https://github.com/celery/celery/pull/7476
@hemidactylus made their first contribution in https://github.com/celery/celery/pull/7356
@code-review-doctor made their first contribution in https://github.com/celery/celery/pull/7481
@Galdanwing made their first contribution in https://github.com/celery/celery/pull/7487
@imapanda made their first contribution in https://github.com/celery/celery/pull/7499
@yonran made their first contribution in https://github.com/celery/celery/pull/7503
@ymorgenstern made their first contribution in https://github.com/celery/celery/pull/7522
@troyswanson made their first contribution in https://github.com/celery/celery/pull/7521
@Aktan-A made their first contribution in https://github.com/celery/celery/pull/7541
@espoirMur made their first contribution in https://github.com/celery/celery/pull/7259
@palfrey made their first contribution in https://github.com/celery/celery/pull/7544
@gabrielsoldani made their first contribution in https://github.com/celery/celery/pull/7553
@aquiline made their first contribution in https://github.com/celery/celery/pull/7554
@shedar made their first contribution in https://github.com/celery/celery/pull/7555
@atiabbz made their first contribution in https://github.com/celery/celery/pull/7572
@EricAtORS made their first contribution in https://github.com/celery/celery/pull/7543
@javad94 made their first contribution in https://github.com/celery/celery/pull/7579
@kwikwag made their first contribution in https://github.com/celery/celery/pull/7268
@alekibango made their first contribution in https://github.com/celery/celery/pull/7590
@wieczorek1990 made their first contribution in https://github.com/celery/celery/pull/7594
@kackyt made their first contribution in https://github.com/celery/celery/pull/7599
@vanschelven made their first contribution in https://github.com/celery/celery/pull/7613
@charlax made their first contribution in https://github.com/celery/celery/pull/7621
@954-Ivory made their first contribution in https://github.com/celery/celery/pull/7652
@denys-pidlisnyi made their first contribution in https://github.com/celery/celery/pull/7653
@Nusnus made their first contribution in https://github.com/celery/celery/pull/7668
@dcecile made their first contribution in https://github.com/celery/celery/pull/7675
@wochinge made their first contribution in https://github.com/celery/celery/pull/7684
@qrmt made their first contribution in https://github.com/celery/celery/pull/7680
@andrebr made their first contribution in https://github.com/celery/celery/pull/7714
@woutdenolf made their first contribution in https://github.com/celery/celery/pull/7727
@maxfirman made their first contribution in https://github.com/celery/celery/pull/7734
@skshetry made their first contribution in https://github.com/celery/celery/pull/7773
@jugmac00 made their first contribution in https://github.com/celery/celery/pull/7789
@sashashura made their first contribution in https://github.com/celery/celery/pull/7768
@Zhong-z made their first contribution in https://github.com/celery/celery/pull/7728
@strugee made their first contribution in https://github.com/celery/celery/pull/7853
@paradox-lab made their first contribution in https://github.com/celery/celery/pull/7857
@sondrelg made their first contribution in https://github.com/celery/celery/pull/7858
@hankehly made their first contribution in https://github.com/celery/celery/pull/7873
@mudetz made their first contribution in https://github.com/celery/celery/pull/7859
@mathiasertl made their first contribution in https://github.com/celery/celery/pull/7879
@hsk17 made their first contribution in https://github.com/celery/celery/pull/7876
@kaustavb12 made their first contribution in https://github.com/celery/celery/pull/7620
@chncaption made their first contribution in https://github.com/celery/celery/pull/7899
@WilliamDEdwards made their first contribution in https://github.com/celery/celery/pull/7910
@moaddib666 made their first contribution in https://github.com/celery/celery/pull/7952
@nkns165 made their first contribution in https://github.com/celery/celery/pull/7951
@abs25 made their first contribution in https://github.com/celery/celery/pull/7945
@alessio-b2c2 made their first contribution in https://github.com/celery/celery/pull/7973
@yarikoptic made their first contribution in https://github.com/celery/celery/pull/8023
@arnisjuraga made their first contribution in https://github.com/celery/celery/pull/8031
@CharlieTruong made their first contribution in https://github.com/celery/celery/pull/8058
@pkyosx made their first contribution in https://github.com/celery/celery/pull/8053
@yanick made their first contribution in https://github.com/celery/celery/pull/8072
@ShukantPal made their first contribution in https://github.com/celery/celery/pull/8071
@norbertcyran made their first contribution in https://github.com/celery/celery/pull/8075
@cuishuang made their first contribution in https://github.com/celery/celery/pull/8087
@thebalaa made their first contribution in https://github.com/celery/celery/pull/8085
@stumpylog made their first contribution in https://github.com/celery/celery/pull/8098
@max-muoto made their first contribution in https://github.com/celery/celery/pull/8107
@sblondon made their first contribution in https://github.com/celery/celery/pull/8112
@pamelafox made their first contribution in https://github.com/celery/celery/pull/8113
@marselester made their first contribution in https://github.com/celery/celery/pull/8131
@Bidaya0 made their first contribution in https://github.com/celery/celery/pull/8134
@youtux made their first contribution in https://github.com/celery/celery/pull/8133
@iurisilvio made their first contribution in https://github.com/celery/celery/pull/8143
@jaroslawporada made their first contribution in https://github.com/celery/celery/pull/8177
@candleindark made their first contribution in https://github.com/celery/celery/pull/8229
@stegayet made their first contribution in https://github.com/celery/celery/pull/8248
@Mapiarz made their first contribution in https://github.com/celery/celery/pull/8257
@danigm made their first contribution in https://github.com/celery/celery/pull/8271

Full Changelog: https://github.com/celery/celery/compare/v5.2.5...v5.3.0

Celery - v5.3.0

Quality Improvements and Stability Enhancements

Better Compatibility and Upgrade Confidence

Dropped support for Python 3.7

Automatic re-connection on connection loss to broker

Kombu

Redis

SQLAlchemy

Billiard

Deprecate pytz and use zoneinfo

Signal::`worker_before_create_process`

Setting::`beat_cron_starting_deadline`

Redis result backend Global keyprefix

Django

Make default worker state limits configurable

Canvas stamping

Known Issues

What's Changed

New Contributors

Security

Details

Quality Improvements and Stability Enhancements

Better Compatibility and Upgrade Confidence

Dropped support for Python 3.7

Automatic re-connection on connection loss to broker

Kombu

Redis

SQLAlchemy

Billiard

Deprecate pytz and use zoneinfo

Signal::worker_before_create_process

Setting::beat_cron_starting_deadline

Redis result backend Global keyprefix

Django

Make default worker state limits configurable

Canvas stamping

Known Issues

What's Changed

New Contributors

Security

Details

Signal::`worker_before_create_process`

Setting::`beat_cron_starting_deadline`