Confluent-kafka

Fixes

- Added a new ConsumerGroupState UNKNOWN. The typo state UNKOWN is deprecated and will be removed in the next major version.
- Fix some Admin API documentation stating -1 for infinite timeout incorrectly.
Request timeout can't be infinite.

confluent-kafka-python is based on librdkafka v2.1.1, see the
[librdkafka release notes](https://github.com/edenhill/librdkafka/releases/tag/v2.1.1)
for a complete list of changes, enhancements, fixes and upgrade considerations.

- Added `set_sasl_credentials`. This new method (on the Producer, Consumer, and AdminClient) allows modifying the stored
SASL PLAIN/SCRAM credentials that will be used for subsequent (new) connections to a broker (1511).
- Wheels for Linux / arm64 (1496).
- Added support for Default num_partitions in CreateTopics Admin API.
- Added support for password protected private key in CachedSchemaRegistryClient.
- Add reference support in Schema Registry client. (RickTalken, 1304)
- Migrated travis jobs to Semaphore CI (1503)
- Added support for schema references. (1514 and slominskir 1088)
- [KIP-320](https://cwiki.apache.org/confluence/display/KAFKA/KIP-320%3A+Allow+fetchers+to+detect+and+handle+log+truncation):
add offset leader epoch methods to the TopicPartition and Message classes (1540).

confluent-kafka-python is based on librdkafka v2.1.0, see the
[librdkafka release notes](https://github.com/edenhill/librdkafka/releases/tag/v2.1.0)
for a complete list of changes, enhancements, fixes and upgrade considerations.

- Added Python 3.11 wheels.
- [KIP-222](https://cwiki.apache.org/confluence/display/KAFKA/KIP-222+-+Add+Consumer+Group+operations+to+Admin+API)
Add Consumer Group operations to Admin API.
- [KIP-518](https://cwiki.apache.org/confluence/display/KAFKA/KIP-518%3A+Allow+listing+consumer+groups+per+state)
Allow listing consumer groups per state.
- [KIP-396](https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=97551484)
Partially implemented: support for AlterConsumerGroupOffsets.
- As result of the above KIPs, added (1449)
- `list_consumer_groups` Admin operation. Supports listing by state.
- `describe_consumer_groups` Admin operation. Supports multiple groups.
- `delete_consumer_groups` Admin operation. Supports multiple groups.
- `list_consumer_group_offsets` Admin operation. Currently, only supports 1 group with multiple partitions. Supports require_stable option.
- `alter_consumer_group_offsets` Admin operation. Currently, only supports 1 group with multiple offsets.
- Added `normalize.schemas` configuration property to Schema Registry client (rayokota, 1406)
- Added metadata to `TopicPartition` type and `commit()` (1410).
- Added `consumer.memberid()` for getting member id assigned to
the consumer in a consumer group (1154).
- Implemented `nb_bool` method for the Producer, so that the default (which uses len)
will not be used. This avoids situations where producers with no enqueued items would
evaluate to False (vladz-sternum, 1445).
- Deprecated `AvroProducer` and `AvroConsumer`. Use `AvroSerializer` and `AvroDeserializer` instead.
- Deprecated `list_groups`. Use `list_consumer_groups` and `describe_consumer_groups` instead.
- Improved Consumer Example to show atleast once semantics.
- Improved Serialization and Deserialization Examples.
- Documentation Improvements.

Upgrade considerations

OpenSSL 3.0.x upgrade in librdkafka requires a major version bump, as some
legacy ciphers need to be explicitly configured to continue working,
but it is highly recommended NOT to use them. The rest of the API remains
backward compatible.

confluent-kafka-python is based on librdkafka 2.0.2, see the

and later ones for a complete list of changes, enhancements, fixes and upgrade considerations.

**Note: There were no v2.0.0 and v2.0.1 releases.**

- Support for setting principal and SASL extensions in oauth_cb
and handle failures (Manicben, 1402)
- Wheel for macOS M1/arm64
- KIP-140 Admin API ACL fix:
When requesting multiple create_acls or delete_acls operations,
if the provided ACL bindings or ACL binding filters are not
unique, an exception will be thrown immediately rather than later
when the responses are read. (1370).
- KIP-140 Admin API ACL fix:
Better documentation of the describe and delete ACLs behavior
when using the MATCH resource patter type in a filter. (1373).
- Avro serialization examples:
added a parameter for using a generic or specific Avro schema. (1381).

confluent-kafka-python is based on librdkafka v1.9.2, see the
[librdkafka release notes](https://github.com/edenhill/librdkafka/releases/tag/v1.9.2)
for a complete list of changes, enhancements, fixes and upgrade considerations.

There was no 1.9.1 release of the Python Client.