Update confluent-kafka requirement from <2.15.0,>=2.4.0 to >=2.4.0,<2.16.0

[dependabot]

Updates the requirements on confluent-kafka to permit the latest version.

Release notes

Sourced from confluent-kafka's releases.

v2.15.0

KIP-932 Queues for Kafka – Now in Preview

confluent-kafka-python 2.15.0 adds a Preview implementation of the KIP-932 share consumer (Queues for Kafka). Members of a share group cooperatively consume from the same partitions with per-record acquire/acknowledge semantics and redelivery, providing queue-like consumption on top of Kafka.

• New ShareConsumer and DeserializingShareConsumer clients: subscribe, batch poll (poll() returns a Messages batch), and close (with context-manager support).
• Implicit (default) and explicit acknowledgement modes (share.acknowledgement.mode), with AcknowledgeType ACCEPT / RELEASE / REJECT and Message.delivery_count().
• Synchronous and asynchronous commit (commit_sync / commit_async) and an acknowledgement-commit callback.
• Runtime SASL credential updates (set_sasl_credentials) and new IllegalStateException / ConcurrentModificationException exceptions.
• (#2217, #2239, #2241, #2252, #2253, #2265, #2273, #2277, #2279)

See the Share Consumer guide and the Share consumers section of librdkafka's INTRODUCTION.md.

Note: The share consumer is currently in Preview and should not be used in production environments. Its public interfaces may change before General Availability, and known limitations apply (see the guide). The share consumer is single-threaded and not thread-safe. It requires a broker with share groups enabled (generally available in Apache Kafka 4.2.0).

Features

• New optional install confluent-kafka[oauthbearer-aws] provides AWS IAM-based OAUTHBEARER authentication via AWS STS GetWebIdentityToken. Activate by setting sasl.oauthbearer.method=oidc, sasl.oauthbearer.metadata.authentication.type=aws_iam, and sasl.oauthbearer.config="region=...,audience=...". See the AWS IAM OAUTHBEARER guide for full configuration, and https://github.com/confluentinc/confluent-kafka-python/blob/HEAD/examples/oauth_oidc_ccloud_aws_iam.py for a worked example.

Enhancements

• Add support for union-of-pools and auto pool mapping for Schema Registry (#2182)

Fixes

• Fix Encryption fails when expanded union types have two references to the same record (@​ChristophMajcenAtXxxlutz, #2262)
• Make orjson optional in JSON serdes with stdlib json fallback (#2281)
• Handle non-http errors during retries (#2292)
• Use TLS certification verification with Hashicorp Vault (#2294)

confluent-kafka-python v2.15.0 is based on librdkafka v2.15.0, see the librdkafka release notes for a complete list of changes, enhancements, fixes and upgrade considerations.

Changelog

Sourced from confluent-kafka's changelog.

v2.15.0

KIP-932 Queues for Kafka – Now in Preview

confluent-kafka-python 2.15.0 adds a Preview implementation of the KIP-932 share consumer (Queues for Kafka). Members of a share group cooperatively consume from the same partitions with per-record acquire/acknowledge semantics and redelivery, providing queue-like consumption on top of Kafka.

• New ShareConsumer and DeserializingShareConsumer clients: subscribe, batch poll (poll() returns a Messages batch), and close (with context-manager support).
• Implicit (default) and explicit acknowledgement modes (share.acknowledgement.mode), with AcknowledgeType ACCEPT / RELEASE / REJECT and Message.delivery_count().
• Synchronous and asynchronous commit (commit_sync / commit_async) and an acknowledgement-commit callback.
• Runtime SASL credential updates (set_sasl_credentials) and new IllegalStateException / ConcurrentModificationException exceptions.
• (#2217, #2239, #2241, #2252, #2253, #2265, #2273, #2277, #2279)

See the Share Consumer guide and the Share consumers section of librdkafka's INTRODUCTION.md.

Note: The share consumer is currently in Preview and should not be used in production environments. Its public interfaces may change before General Availability, and known limitations apply (see the guide). The share consumer is single-threaded and not thread-safe. It requires a broker with share groups enabled (generally available in Apache Kafka 4.2.0).

Features

• New optional install confluent-kafka[oauthbearer-aws] provides AWS IAM-based OAUTHBEARER authentication via AWS STS GetWebIdentityToken. Activate by setting sasl.oauthbearer.method=oidc, sasl.oauthbearer.metadata.authentication.type=aws_iam, and sasl.oauthbearer.config="region=...,audience=...". See the AWS IAM OAUTHBEARER guide for full configuration, and https://github.com/confluentinc/confluent-kafka-python/blob/master/examples/oauth_oidc_ccloud_aws_iam.py for a worked example.

Enhancements

• Add support for union-of-pools and auto pool mapping for Schema Registry (#2182)

Fixes

• Fix Encryption fails when expanded union types have two references to the same record (@​ChristophMajcenAtXxxlutz, #2262)
• Make orjson optional in JSON serdes with stdlib json fallback (#2281)
• Handle non-http errors during retries (#2292)
• Use TLS certification verification with Hashicorp Vault (#2294)

confluent-kafka-python v2.15.0 is based on librdkafka v2.15.0, see the librdkafka release notes for a complete list of changes, enhancements, fixes and upgrade considerations.

v2.14.2 - 2026-06-03

v2.14.2 is a maintenance release with the following fixes and enhancements:

Fixes

... (truncated)

Commits

• 8b1c7a6 v2.15.0 (#2302)
• ad3d779 Update changelog (#2301)
• ffbdc9f v2.15.0rc2 (#2300)
• 291f5b7 [KIP-932] Share consumer (Queues for Kafka) guide and external docs (#2298)
• cc51dc2 [KIP-932] - Update ShareConsumer api docs (#2295)
• 50e9228 Harden HCVault KMS TLS verify against empty CA value; add tests (#2296)
• 19d1b98 Use TLS certification verification with Hashicorp Vault (#2294)
• a697e38 DGS-23437: Enable client omit Confluent-Identity-Pool-Id (#2182)
• cc498ec AWS IAM OAUTHBEARER support via optional oauthbearer-aws module (#2267)
• b2edda3 [KIP-932] - Add usage examples for share consumer applications (#2288)
• Additional commits viewable in compare view

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