Aiokafka

==================

New features:

* Add support for Python 3.8 and 3.9. (issue 569, pr 669 and 676 by ods)
* Drop support for Python 3.5. (pr 667 by ods)
* Add `OAUTHBEARER` as a new `sasl_mechanism`. (issue 618 and pr 630 by oulydna)


Bugfixes:

* Fix memory leak in kafka consumer when consumer is in idle state not consuming any message.
(issue 628 and pr 629 by iamsinghrajat)

==================

New features:

* Add async context manager support for both Producer and Consumer. (pr 613 and 494 by nimish)
* Upgrade to kafka-python version 2.0.0 and set it as non-strict
parameter. (issue 590 by yumendy and 558 by originalgremlin)
* Make loop argument optional (issue 544)
* SCRAM-SHA-256 and SCRAM-SHA-512 support for SASL authentication (issue 571 and pr 588 by SukiCZ)
* Added headers param to AIOKafkaProducer.send_and_wait (pr 553 by megabotan)
* Add `consumer.last_poll_timestamp(partition)` which gives the ms timestamp of the last
update of `highwater` and `lso`. (issue 523 and pr 526 by aure-olli)
* Change all code base to async-await (pr 522)
* Minor: added PR and ISSUE templates to GitHub


Bugfixes:

* Ignore debug package generation on bdist_rpm command. (issue 599 by gabriel-tincu)
* UnknownMemberId was raised to the user instead of retrying on auto commit. (issue 611)
* Fix issue with messages not being read after subscriptions change with group_id=None. (issue 536)
* Handle `RequestTimedOutError` in `coordinator._do_commit_offsets()` method to explicitly mark
coordinator as dead. (issue 584 and pr 585 by FedirAlifirenko)
* Added handling `asyncio.TimeoutError` on metadata request to broker and metadata update.
(issue 576 and pr 577 by MichalMazurek)
* Too many reqs on kafka not available (issue 496 by lud4ik)
* Consumer.seek_to_committed now returns mapping of committed offsets (pr 531 by ask)
* Message Accumulator: add_message being recursive eventually overflows (pr 530 by ask)


Improved Documentation:

* Clarify auto_offset_reset usage. (pr 601 by dargor)
* Fix spelling errors in comments and documentation using codespell (pr 567 by mauritsvdvijgh)
* Delete old benchmark file (issue 546 by jeffwidman)
* Fix a few typos in docs (pr 573 and pr 563 by ultrabug)
* Fix typos, spelling, grammar, etc (pr 545 and pr 547 by jeffwidman)
* Fix typo in docs (pr 541 by pablogamboa)
* Fix documentation for benchmark (pr 537 by abhishekray07)
* Better logging for bad CRC (pr 529 by ask)

==================

Bugfixes:

* Fix ConnectionError breaking metadata sync background task (issue 517 and 512)
* Fix event_waiter reference before assignment (pr 504 by romantolkachyov)
* Bump version of kafka-python

==================

New features:

* Add SASL support with both SASL plain and SASL GGSAPI. Support also includes
Broker v0.9.0, but you will need to explicitly pass ``api_version="0.9"``.
(Big thanks to cyrbil and jsurloppe for working on this)
* Added support for max_poll_interval_ms and rebalance_timeout_ms settings (
issue 67)
* Added pause/resume API for AIOKafkaConsumer. (issue 304)
* Added header support to both AIOKafkaConsumer and AIOKafkaProducer for
brokers v0.11 and above. (issue 462)

Bugfixes:

* Made sure to not request metadata for all topics if broker version is passed
explicitly and is 0.10 and above. (issue 440, thanks to ulrikjohansson)
* Make sure heartbeat task will close if group is reset. (issue 372)

==================

New features:

* Add full support for V2 format messages with a Cython extension. Those are
used for Kafka >= 0.11.0.0
* Added support for transactional producing (issue 182)
* Added support for idempotent producing with `enable_idempotence` parameter
* Added support for `fetch_max_bytes` in AIOKafkaConsumer. This can help limit
the amount of data transferred in a single roundtrip to broker, which is
essential for consumers with large amount of partitions

Bugfixes:

* Fix issue with connections not propagating serialization errors
* Fix issue with `group=None` resetting offsets on every metadata update
(issue 441)
* Fix issue with messages not delivered in order when Leader changes (issue
228)
* Fixed version parsing of `api_version` parameter. Before it ignored the
parameter

==================

Bugfix:

* Fixed memory issue introduced as a result of a bug in `asyncio.shield` and
not cancelling coroutine after usage. (see issue 444 and 436)