Hey fellow Airflowers, The release candidates for Apache Airflow 3.4.0rc3 and Task SDK 1.4.0rc3 are now available for testing!
This email is calling for a vote on the release, which will last at least 24 hours, from Thursday, Nov 5, 2026 at 9:30 AM UTC until Friday, Nov 6, 2026 at 9:30 AM UTC and until 3 binding +1 votes have been received. Consider this my +1 binding vote. Status of testing for this release is tracked in: https://github.com/apache/airflow/issues/75865 Since 3.4.0 is a minor release with several new features, we especially appreciate the community's help testing the new functionality and confirming it introduces no regressions. Please check off items on the tracking issue as you verify them. I've also posted a per-area testing status in the community Slack <https://apache-airflow.slack.com/archives/C06K9Q5G2UA/p1793473188025259?thread_ts=1793289024.229599&cid=C06K9Q5G2UA> showing what's confirmed and what's still pending verification please join the discussion and help close out the remaining items Airflow 3.4.0rc3 is available at: https://dist.apache.org/repos/dist/dev/airflow/3.4.0rc3/ "apache-airflow" Meta package: - *apache-airflow-3.4.0-source.tar.gz* is a source release that comes with INSTALL instructions. - *apache-airflow-3.4.0.tar.gz* is the binary Python "sdist" release. - *apache_airflow-3.4.0-py3-none-any.whl* is the binary Python wheel "binary" release. "apache-airflow-core" package: - *apache_airflow_core-3.4.0.tar.gz* is the binary Python "sdist" release. - *apache_airflow_core-3.4.0-py3-none-any.whl* is the binary Python wheel "binary" release. Task SDK 1.4.0 is available at: https://dist.apache.org/repos/dist/dev/airflow/task-sdk/1.4.0rc3/ "apache-airflow-task-sdk" package: - *apache_airflow_task_sdk-1.4.0.tar.gz* is the binary Python "sdist" release. - *apache_airflow_task_sdk-1.4.0-py3-none-any.whl* is the binary Python Public keys are available at: https://dist.apache.org/repos/dist/release/airflow/KEYS <https://dist.apache.org/repos/dist/release/airflow/KEYS> Please vote accordingly: [ ] +1 approve [ ] +0 no opinion [ ] -1 disapprove with the reason Only votes from PMC members are binding, but all members of the community are encouraged to test the release and vote with "(non-binding)". The test procedure for PMC members is described in: https://github.com/apache/airflow/blob/main/dev/README_RELEASE_AIRFLOW.md#verify-the-release-candidate-by-pmc-members <https://github.com/apache/airflow/blob/main/dev/README_RELEASE_AIRFLOW.md#verify-the-release-candidate-by-pmc-members> The test procedure for contributors and members of the community who would like to test this RC is described in: https://github.com/apache/airflow/blob/main/dev/README_RELEASE_AIRFLOW.md#verify-the-release-candidate-by-contributors <https://github.com/apache/airflow/blob/main/dev/README_RELEASE_AIRFLOW.md#verify-the-release-candidate-by-contributors> Please note that the version number excludes the 'rcX' string, so it's now simply 3.4.0 for Airflow package and 1.4.0 for Task SDK. This will allow us to rename the artifact without modifying the artifact checksums when we actually release. Docs (for preview): https://airflow.staged.apache.org/docs/apache-airflow/3.4.0 Release Notes: - https://github.com/apache/airflow/blob/3.4.0rc3/RELEASE_NOTES.rst <https://github.com/apache/airflow/blob/3.4.0rc3/RELEASE_NOTES.rst#airflow-3-4-0-2026-11-06> - https://airflow.staged.apache.org/docs/apache-airflow/3.4.0/release_notes.html <https://airflow.staged.apache.org/docs/apache-airflow/3.4.0/release_notes.html#airflow-3-4-0-2026-11-04> (Rendered HTML) Testing Instructions using PyPI: You can build a virtualenv that installs this and other required packages (e.g. task sdk), like this: uv venv uv pip install -U \ apache-airflow==3.4.0rc3 \ apache-airflow-core==3.4.0rc3 \ apache-airflow-task-sdk==1.4.0rc3 Constraints files are at https://github.com/apache/airflow/tree/constraints-3.4.0rc3 Regards, Rahul Vats
