2.12.1

[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

References

JIRA:

Test & Review

Open questions / Follow-ups

[confluent-cla-assistant]

🎉 All Contributor License Agreements have been signed. Ready to merge.
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[Copilot]

Pull Request Overview

This PR finalizes the v2.12.1 release by removing the release candidate (RC) designation and updating the release date. The changes promote version 2.12.1 from release candidate status to the official release.

Key Changes:

• Updated version strings from "2.12.1rc1" or "2.12.1-RC1" to "2.12.1" across the codebase
• Changed CHANGELOG.md release designation from "release candidate" to the final release date of 2025-10-21
• Added version 2.12.1 to the soak test version lists

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/confluent_kafka/src/confluent_kafka.h	Updated version string macro from RC to final release
pyproject.toml	Updated package version from RC to final release
examples/docker/Dockerfile.alpine	Updated librdkafka version environment variable from RC to final release
.semaphore/semaphore.yml	Updated CI librdkafka version from RC to final release
CHANGELOG.md	Updated release header from "release candidate" to final release with date
tests/soak/setup_all_versions.py	Added 2.12.1 to version test lists

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[Copilot]

The release date is set to 2025-10-21, which is in the future. As of January 2025 knowledge cutoff, October 2025 has not occurred yet. This appears to be an error - please verify and update to the correct release date.

Suggested change

	## v2.12.1 - 2025-10-21
	## v2.12.1

[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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