vatsrahul1001 opened a new pull request, #74464:
URL: https://github.com/apache/airflow/pull/74464
## What
Make `breeze release-management start-rc-process` able to cut **alpha/beta**
pre-releases (e.g. `3.4.0b1`), which happen before a `vX-Y-stable` branch
exists.
Today the command hard-requires `vX-Y-stable` for branch validation, the
sync-PR merge, the tagging-branch check, and constraints resolution. During the
beta phase that branch does not exist yet (it is created at `X.Y.0rc1`), so
betas had to be cut by hand.
## How
- `get_candidate_base_branch(version, version_branch)` returns `vX-Y-stable`
for an `rc` and `vX-Y-test` for an alpha/beta. It is threaded through
validation, the sync-PR merge, and the tagging-branch check, so an `rc` behaves
exactly as before while an alpha/beta uses `vX-Y-test`.
- Constraints:
- **rc** → unchanged: triggers the `release-constraints` workflow,
resolved from the stable branch (the provider rc wave on PyPI must be pinned).
- **alpha/beta** → tags `constraints-<version>` at the shared
`constraints-X-Y` branch tip. A beta pins providers at their *released*
versions from sources that match `main`, so its resolution is already what that
tip holds — re-running the identical workflow on CI runners would only
duplicate it. This matches how betas were tagged before the
`release-constraints` workflow existed (e.g. `constraints-3.3.0b1`).
The `release-constraints` workflow itself is **not** modified, so the `rc`
and final constraints flows are untouched.
Docs: the beta section of `dev/README_RELEASE_AIRFLOW.md` documents the
behaviour, including the need to sync `constraints-X-Y` to `constraints-main`
before cutting, and the merge-yes/push-no step so the beta's notes commit is
not pushed onto `vX-Y-test` (which would break the fast-forward).
## Tests
Unit tests for the branch selection, the rc-vs-beta constraints dispatch,
and the exact git tag/push sequence. `uv run pytest
dev/breeze/tests/test_release_candidate_command.py` — 18 passed.
---
##### Was generative AI tooling used to co-author this PR?
- [X] Yes — Claude Code (Opus 4.8)
Generated-by: Claude Code (Opus 4.8) following [the
guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#gen-ai-assisted-contributions)
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