2.12.1rc1

[emasab]

What

Checklist

• Contains customer facing changes? Including API/behavior changes
• Did you add sufficient unit test and/or integration test coverage for this PR?
  • If not, please explain why it is not required

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[Copilot]

Pull Request Overview

This PR bumps the version to 2.12.1rc1, a release candidate that restores macOS binaries compatibility with macOS 13 (downgraded from macOS 15).

• Version bumped from 2.12.0 to 2.12.1rc1 across configuration files
• librdkafka dependency updated to v2.12.1-RC1
• macOS deployment target downgraded from 15 to 13

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/confluent_kafka/src/confluent_kafka.h	Updated version string and minimum librdkafka version requirement to 2.12.1
pyproject.toml	Updated package version to 2.12.1rc1
examples/docker/Dockerfile.alpine	Updated LIBRDKAFKA_VERSION environment variable to v2.12.1-RC1
CHANGELOG.md	Added v2.12.1 release candidate entry documenting macOS 13 compatibility restoration
.semaphore/semaphore.yml	Updated librdkafka version and downgraded MACOSX_DEPLOYMENT_TARGET from 15 to 13

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[sonarqube-confluent]

Analysis Details

0 Issues

• 0 Bugs
• 0 Vulnerabilities
• 0 Code Smells

Coverage and Duplications

• No coverage information (66.90% Estimated after merge)
• No duplication information (4.90% Estimated after merge)

Project ID: confluent-kafka-python

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