Release

Commit latest changes (if any), tag, cut a GitHub release, and optionally notify Webex.

Arguments

• --with-webex — after releasing, post a summary to Webex (default: Mycelium Release Notes only; add --with-webex=eng to also post to IoC::Mycelium Eng).
• --preview — cut a prerelease build for testing without affecting stable users. Skips Docker :latest, Homebrew, and ClawHub. Webex still gets a short preview ping (eng channel only — not user-facing release notes). Testers opt in via mycelium upgrade --version <tag>.

Why preview releases are safe

The release pipeline's "promote to latest" steps (Docker :latest tags, GH "Latest" label, Homebrew formula, ClawHub) are gated on the tag matching a stable pattern. Tags containing rc, alpha, beta, or preview are detected as prereleases by the detect-release-type job in .github/workflows/release.yml and bypass all of those.

install.sh and mycelium upgrade both follow the GitHub /releases/latest redirect, which only resolves to releases NOT marked as prerelease. So stable users never see preview builds. Testers install with an explicit version pin.

Steps

1. Commit staged changes — Run git status. If there are uncommitted changes, run /precommit checks then commit directly to main (admin push, no PR needed). Use a conventional commit message.

   For --preview: do NOT commit a pyproject.toml version bump to main. The release workflow seds the version in-place during the build only — main keeps tracking the next stable version, not the preview.

2. Determine next tag —

   • Stable (/release): Run gh release list --limit 5 to find the current "Latest" release tag. Increment the patch version (e.g. v1.0.0 → v1.0.1).
   • Preview (/release --preview): Find the latest stable tag (highest non-prerelease in gh release list). Target version is <latest-stable-patch+1>. Then check existing prereleases for that target: if vX.Y.Zrc1 exists, cut vX.Y.Zrc2, etc. First preview for a target version is always rc1. Use PEP 440 format with no separator (vX.Y.ZrcN, NOT vX.Y.Z-rc.N) so the wheel filename matches what install.sh expects.

3. Check for new migrations — Stable only. Run:

   git diff <prev-stable-tag>..HEAD -- fastapi-backend/alembic_migrations/versions/
   

   If any new migration files exist, note this in the changelog and include mycelium migrate in the upgrade instructions in the Webex message (before mycelium doctor).

4. Generate the CHANGELOG.md entry — Stable only. Skipped for --preview: prerelease iterations get rolled up into the next stable's entry, not their own.

   No [Unreleased] block is maintained on main. Each release's section is derived from git log <prev-stable-tag>..HEAD --no-merges --oneline at release time. Group commits by conventional-commit prefix:

   • feat: → Added
   • fix: → Fixed
   • refactor:, perf:, chore:, dependency bumps, infra → Changed
   • revert / deletion commits → Removed

   Skip pure docs:, style:, test:, ci: commits unless they materially affect users. Reword each line to user-facing language (drop the prefix, keep PR links). Prepend the new section directly under the header preface — do NOT touch older entries.

   Commit the changelog update directly to main (admin push, no PR) with message chore(release): changelog for <tag>. This commit must land before the tag is pushed so the tag points at the commit that includes its own entry.

5. Tag and push — Run:

   git tag <new-tag> && git push origin <new-tag>
   

   The release.yml workflow detects whether the tag is a prerelease and gates the rest of the pipeline accordingly.

6. Create GitHub release — The release.yml workflow handles this automatically (via softprops/action-gh-release), including setting prerelease: true for preview tags. No manual gh release create needed.

   Wait for the workflow to finish (gh run watch or gh run list --workflow=release.yml --limit 1). If it fails, fix and re-run before posting any notifications.

7. Webex notification — Invoke /webex (no confirmation needed). Behavior depends on whether this is a stable or preview release.

   Stable release — when --with-webex is passed, post a bullet-point changelog summary with the tag and release URL. Each bullet should include the PR link if one exists (e.g. - feat: description ([#123](https://github.com/mycelium-io/mycelium/pull/123))). End the summary with a markdown link to the full changelog: [Full changelog](https://github.com/mycelium-io/mycelium/blob/main/CHANGELOG.md). Follow with upgrade instructions using triple-backtick code blocks so they're copyable:

   To upgrade:
   mycelium upgrade && mycelium pull
   mycelium migrate              # if this release includes new migrations
   mycelium adapter add claude-code --reinstall  # if using claude-code
   mycelium adapter add cursor --reinstall        # if using cursor
   mycelium doctor  # to check health of services
   

   Include mycelium migrate only if step 3 found new migration files. Omit the line otherwise. Post to:

   • Mycelium Release Notes — always (room ID in /webex skill)
   • IoC::Mycelium Eng — only if --with-webex=eng was passed (room ID in /webex skill)

   Preview release (--preview) — post a short eng-only ping to IoC::Mycelium Eng (NOT Mycelium Release Notes — that channel is user-facing). No changelog. Use --markdown so the code blocks render. Just the tag, the GH release URL, and the install/upgrade commands testers need:

   Preview build cut: <tag>
   <release-url>
   
   Test on a fresh server:
   ```bash
   MYCELIUM_VERSION=<tag-without-v> curl -fsSL https://mycelium-io.github.io/mycelium/install.sh | bash
   mycelium pull --version <tag-without-v>
   

   Or upgrade in place:

   mycelium upgrade --version <tag-without-v>
   mycelium pull --version <tag-without-v>
   

   Roll back:

   mycelium upgrade --version <previous-stable>
   mycelium pull --version latest
   

   `mycelium pull --version <tag>` is the critical second step — it pins both `mycelium-backend` and `mycelium-db` images via `MYCELIUM_IMAGE_TAG` in `~/.mycelium/.env`. Without it, the new CLI runs against stale stable containers. Stable users are unaffected — `install.sh` and `mycelium upgrade` (no `--version`) still resolve to the latest stable, and `mycelium pull` (no `--version`) still pulls `:latest`.
   
   

8. Mycelium patch notes — Skipped for --preview (or scope to a previews/<tag> key if the user explicitly asks for it). Otherwise write the same changelog summary to the active Mycelium room:

   mycelium memory set "releases/<tag>" "<same bullet-point summary as Webex>" --handle claude-code-agent
   

   This keeps a persistent record of what shipped and when, visible to all agents sharing the room.