deps: bump kafka-python from 2.3.2 to 3.0.0

[dependabot]

Bumps kafka-python from 2.3.2 to 3.0.0.

Release notes

Sourced from kafka-python's releases.

3.0.0 (Jun 11, 2026)

This is a major release with significant changes to kafka-python internals to simplify networking and feature development. It introduces a new networking layer (kafka.net) and a dynamic protocol system that uses JSON schema files imported from Apache Kafka. It substantially refactors and expands the Admin client, including breaking changes to some API signatures, and it lands a long list of KIP features/changes across the producer, consumer, admin, and networking/metadata clients. Protocol support across kafka-python is now at or beyond the apache kafka 3.0 baseline.

Breaking Changes

Python Compatibility

• Drop python2 support (#2699, #2774, #2837, #2846)

Default Configuration Changes

• KIP-679: Update Producer defaults -- enable_idempotence=True, acks='all' (#3013)
• KIP-735: Increase default consumer session_timeout_ms from 10s to 45s (#3030)
• Rename api_version_auto_timeout_ms -> bootstrap_timeout_ms; default 30s (#3028)
• Producer: Remove deprecation warning for buffer_memory config (now raises) (#3047)

Abstract Interface Changes

• Serializer/Deserializer: Pass headers to serialize/deserialize (#3046)
• Partitioner: pass both key/value, serialized and unserialized, to partition() (#3045)

Admin API Changes

• Admin: change response shapes to simple dicts (#2883)
• Admin: groups apis renames; add offsets, members apis (#2892)
• Admin: Deprecate NewTopics/NewPartitions in favor of simple dicts (#2869)

Consumer API Changes

• Consumer: use assignor instances, not classes (#2775)

Error Hierarchy

• KafkaError subclass Exception not RuntimeError (#2932)
• Make IncompatibleBrokerVersion a subclass of UnsupportedVersionError (#2924)
• Eliminate NoBrokersAvailableError (#2942)
• KafkaProtocolError is not retriable (#2941)
• Prefer raised Exceptions to assert / AssertionError (#3042)

Old Networking Stack Removal

• Remove kafka.client_async / kafka.conn legacy modules (#2918)
• Drop version probes for pre-0.10/ApiVersionsRequest brokers

SASL Module Rename

• Rename kafka.sasl -> kafka.net.sasl

Networking (kafka.net)

Complete refactor of the networking layer using a bespoke event-loop supporting async/await (but no asyncio yet). All three clients (Admin, Consumer, Producer) use a dedicated IO thread that drives a selector-based event loop. AdminClient/KafkaConsumer leverage a built-in io thread supplied by kafka.net, KafkaProducer continues to use its existing background Sender thread for now.

Async IO Substrate

• kafka.net: Refactored async networking modules (generator-based coroutines) (#2812)
• kafka.net: Network IO thread (#2965, #2980, #2961, #2968, #2963)
• KafkaNetClient: drop-in replacement for KafkaClient using kafka.net (#2816)
• KafkaNetSocket: interface class for socket and proxy connections (#2992)

... (truncated)

Changelog

Sourced from kafka-python's changelog.

3.0.0 (Jun 11, 2026) ####################

This is a major release with significant changes to kafka-python internals to simplify networking and feature development. It introduces a new networking layer (kafka.net) and a dynamic protocol system that uses JSON schema files imported from Apache Kafka. It substantially refactors and expands the Admin client, including breaking changes to some API signatures, and it lands a long list of KIP features/changes across the producer, consumer, admin, and networking/metadata clients. Protocol support across kafka-python is now at or beyond the apache kafka 3.0 baseline.

Breaking Changes

Python Compatibility ^^^^^^^^^^^^^^^^^^^^

• Drop python2 support (#2699, #2774, #2837, #2846)

Default Configuration Changes ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

• KIP-679: Update Producer defaults -- enable_idempotence=True, acks='all' (#3013)
• KIP-735: Increase default consumer session_timeout_ms from 10s to 45s (#3030)
• Rename api_version_auto_timeout_ms -> bootstrap_timeout_ms; default 30s (#3028)
• Producer: Remove deprecation warning for buffer_memory config (now raises) (#3047)

Abstract Interface Changes ^^^^^^^^^^^^^^^^^^^^^^^^^^

• Serializer/Deserializer: Pass headers to serialize/deserialize (#3046)
• Partitioner: pass both key/value, serialized and unserialized, to partition() (#3045)

Admin API Changes ^^^^^^^^^^^^^^^^^

• Admin: change response shapes to simple dicts (#2883)
• Admin: groups apis renames; add offsets, members apis (#2892)
• Admin: Deprecate NewTopics/NewPartitions in favor of simple dicts (#2869)

Consumer API Changes ^^^^^^^^^^^^^^^^^^^^

• Consumer: use assignor instances, not classes (#2775)

Error Hierarchy ^^^^^^^^^^^^^^^

• KafkaError subclass Exception not RuntimeError (#2932)
• Make IncompatibleBrokerVersion a subclass of UnsupportedVersionError (#2924)
• Eliminate NoBrokersAvailableError (#2942)
• KafkaProtocolError is not retriable (#2941)
• Prefer raised Exceptions to assert / AssertionError (#3042)

Old Networking Stack Removal ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

• Remove kafka.client_async / kafka.conn legacy modules (#2918)
• Drop version probes for pre-0.10/ApiVersionsRequest brokers

SASL Module Rename ^^^^^^^^^^^^^^^^^^

• Rename kafka.sasl -> kafka.net.sasl

... (truncated)

Commits

• eb53249 Release 3.0.0
• a902dcc docs: Add Command-Line docs with sphinx-argparse (#3064)
• 7fa6715 docs: install page formatting
• 7f2ba44 Bump copyright notices for 2026
• ac80fb9 docs: reorg/update apidocs (#3063)
• fb060c5 3.0 Migration Guide (#3057)
• 51bf601 docs: updates to install/tests/usage for 3.0 release (#3062)
• ef8aa48 KIPs compatibility list (#3061)
• c4e7446 docs: fixup sphinx warnings (#3060)
• a762d4c Coordinator: check if assignors are already instances (#3058)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #313.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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