After the org move + branch rename (#669):
beta → main (active development)
main → stable (curated release channel)
This PR rewires the workflows that referenced the old branch names so
release-please and the Docker build target the right channels.
## Workflow changes
### `.github/workflows/docker-build.yml`
- **Push triggers**: `[main, beta]` → `[main, stable]` (both `push.branches`
and `pull_request.branches`). `beta` no longer exists; `stable` is the
curated channel that should also produce builds.
- **`is_prerelease` detection**: pre-release context was decided by
`refs/heads/beta`; now decided by `refs/heads/main` (active dev →
prerelease, `-beta.N` version suffix unchanged).
- **`:latest` + `:stable` tagging**: were gated on `{{is_default_branch}}`
(which used to be `main` = stable channel). Default branch is now `main`
= active dev, so the implicit gate would have aliased `:latest` to dev.
Both tags now explicitly gate on `refs/heads/stable` OR a non-prerelease
release tag.
- **`:beta` tag**: REMOVED. Active-dev pulls are `:main` (auto-generated
by `type=ref,event=branch`). The pre-rename `:beta` tag remains frozen
at its last build under Option B / #669 — operators are expected to
update to `:main` or pin to a versioned tag.
### `.github/workflows/release-please.yml`
- `branches: [main]` → `branches: [stable]`. This is the **stable**
release-please workflow (uses `release-please-config.json`); after the
rename, the stable channel lives on the `stable` branch.
### `.github/workflows/release-please-beta.yml`
- `branches: [beta]` → `branches: [main]`.
- `target-branch: beta` → `target-branch: main`.
- This is the **pre-release** release-please workflow (uses
`release-please-config-beta.json`, `prerelease: true`); after the rename,
pre-releases are cut from the new `main` (active dev). The version-suffix
scheme stays `-beta.N` so existing operator pins keep working.
## RELEASING.md
Rewrote the TL;DR, "How a stable release is cut", and hotfix path to
reference the new branch names. Added a one-line "branch model background"
note pointing at #669 so future maintainers know why `main` means active
dev (the opposite of what some projects use). Filename conventions:
`release/X.Y.Z-merge-from-main` (was `…-from-beta`); promotion PR title
`promote main → stable as vX.Y.Z` (was `promote beta → main`).
## Why combined with PR A's content as a single PR
Originally planned as two PRs (B = workflow triggers, C = release-please
reconfigure). Splitting wasn't worth it: the configs are branch-agnostic
(`release-please-config.json` and `release-please-config-beta.json` don't
mention branch names internally), and not bundling them meant a window
where the stable release-please workflow would fire on pushes to the new
`main` (active dev) — exactly the wrong place. Single PR closes that gap.
## Versioning scheme — kept
No version-scheme decision needed. The `-beta.N` suffix on pre-release
versions is preserved (existing operator pins like `v3.71.3-beta.0` keep
working). If a `v4.0.0-pre.N`-style reset is desired later, that's a
separate PR with explicit operator-comms attached.
Paul Nothaft
3ca6378bd7