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@sylphx/bump

Fully semantic release automation. Conventional commits in, semantic versions out.

Features

  • Fully semantic - Conventional commits → semantic versions, automatically
  • Zero config - Works out of the box, no setup required
  • Automatic Release PRs - Preview changes before publishing
  • Monorepo native - File-based detection, independent versioning, cascade bumps
  • Workspace protocol - Auto-resolves workspace:* dependencies at publish time
  • Pre-releases - Alpha, beta, RC via bump files
  • Graduate to 1.0 - Bump file to go from 0.x → 1.0.0
  • Cross-platform - Works with npm, yarn, pnpm, and bun
  • GitHub integration - Auto-creates releases and changelogs
  • Bump files - Optional manual control with custom changelogs

Why bump?

bump changesets
Setup 1 workflow file Multiple config files + bot
Workflow Just commit Create changeset file per change
Version control Automatic from commits Manual per-changeset
Learning curve Know conventional commits? Done New syntax + tooling
PR noise 1 release PR 1 changeset file per change
Fine-grained control Via commit message or bump file Via changeset file
Workspace protocol Auto-resolved Manual handling required
Cascade bumps Automatic Manual configuration

Both tools support fine-grained version control - the difference is where you express it:

  • bump: Control versions through commit messages (feat: = minor, fix: = patch, feat!: = major), or optionally via bump files for custom changelog entries
  • changesets: Control versions through separate changeset files

Choose bump if you prefer keeping version intent in your git history. Choose changesets if you prefer separate files for release notes.

How It Works

  1. You write commits like feat: add login or fix: resolve bug
  2. Bump creates a Release PR automatically
  3. You merge the PR when ready
  4. Bump publishes to npm
git commit -m "feat: add dark mode"
git push
        ↓
   [Release PR created automatically]
        ↓
   [You merge when ready]
        ↓
   [Published to npm!]

Setup (2 minutes)

Step 1: Add the workflow

Create .github/workflows/release.yml:

name: Release

on:
  push:
    branches: [main]

permissions:
  contents: write
  pull-requests: write

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: SylphxAI/bump@v0
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          npm-token: ${{ secrets.NPM_TOKEN }}

Step 2: Add NPM_TOKEN secret

  1. Go to npmjs.com → Access Tokens → Generate New Token
  2. Go to your repo → Settings → Secrets → Actions → New repository secret
  3. Name: NPM_TOKEN, Value: your token

Step 3: Done!

Push a commit and watch the magic happen.

Commit Format

Use these prefixes in your commits:

Commit Version Bump Example
feat: Minor (1.0.0 → 1.1.0) feat: add dark mode
fix: Patch (1.0.0 → 1.0.1) fix: resolve login bug
feat!: Major (1.0.0 → 2.0.0) feat!: redesign API

Other prefixes like docs:, chore:, test:, ci: don't trigger releases.

Semver 0.x Behavior

During 0.x development, breaking changes bump minor instead of major (per semver spec):

  • feat!: on 0.1.0 → 0.2.0 (not 1.0.0)

When ready for stable release, create a bump file:

# .bump/graduate.md
---
release: "1.0.0"
---

First stable release!

What Happens

When you push to main:

┌─────────────────────────────────────────────────────────┐
│  Your commits:                                          │
│  - feat: add user profile                               │
│  - fix: resolve logout issue                            │
│  - docs: update readme                                  │
└─────────────────────────────────────────────────────────┘
                            ↓
┌─────────────────────────────────────────────────────────┐
│  PR #42: chore(release): 1.2.0                          │
├─────────────────────────────────────────────────────────┤
│  ## 🚀 Release                                          │
│                                                         │
│  This PR will release **my-package** version **1.2.0**  │
│                                                         │
│  ### ✨ Features                                        │
│  - add user profile (abc1234)                           │
│                                                         │
│  ### 🐛 Bug Fixes                                       │
│  - resolve logout issue (def5678)                       │
│                                                         │
│  > Merging this PR will publish to npm                  │
└─────────────────────────────────────────────────────────┘
                            ↓
                    [You merge the PR]
                            ↓
                  [Published to npm! 🚀]

FAQ

When should I merge the Release PR?

Whenever you want to publish. The PR stays open and updates automatically with each push. Merge it when you're ready to release.

What if I don't want to release yet?

Just don't merge the PR. It will keep updating as you push more commits.

Can I release without a PR?

Yes! Use mode: release to publish directly:

- uses: SylphxAI/bump@v0
  with:
    mode: release
    github-token: ${{ secrets.GITHUB_TOKEN }}
    npm-token: ${{ secrets.NPM_TOKEN }}

Can I trigger releases manually?

Yes! Add workflow_dispatch:

on:
  workflow_dispatch:  # Manual trigger
  push:
    branches: [main]

Then go to Actions → Release → Run workflow.

CLI Usage

The CLI is for local development - checking status and creating bump files:

# Install
npm add -D @sylphx/bump

# Check release status (also runs with just `bump`)
bump status

# Create bump files
bump add                      # Interactive mode
bump add minor                # Minor release
bump add patch --beta         # Patch with beta prerelease
bump add minor -p @scope/core # Target specific package
bump add "1.0.0"              # Explicit version

# Initialize config (optional)
bump init

Note: Releases are handled automatically by GitHub Actions. The CLI is only for local development.

Monorepo Support

Bump automatically detects monorepos (via workspaces in package.json) and handles them intelligently:

How It Works

  1. File-based detection: Commits are mapped to packages by analyzing which files changed
  2. Per-package versioning: Each package gets its own version based on its relevant commits
  3. Per-package tags: Tags follow @scope/pkg@1.0.0 format for independent tracking
  4. Smart PR body: Shows all packages being released in a summary table
┌────────────────────────────────────────────────────────────┐
│  PR #42: chore(release): @scope/foo@1.2.0, @scope/bar@2.0.0│
├────────────────────────────────────────────────────────────┤
│  ## 🚀 Release                                             │
│                                                            │
│  | Package     | Current | New   | Type  |                 │
│  |-------------|---------|-------|-------|                 │
│  | @scope/foo  | 1.1.0   | 1.2.0 | minor |                 │
│  | @scope/bar  | 1.9.0   | 2.0.0 | major |                 │
│                                                            │
│  ### 📦 @scope/foo `1.1.0` → `1.2.0`                       │
│  - feat: add new feature (abc1234)                         │
│                                                            │
│  ### 📦 @scope/bar `1.9.0` → `2.0.0` ⚠️                    │
│  - feat!: breaking change (def5678)                        │
└────────────────────────────────────────────────────────────┘

Monorepo Setup

Same workflow as single packages - just make sure you have workspaces in your root package.json:

{
  "workspaces": ["packages/*"]
}

No additional configuration needed!

Configuration (Optional)

Create bump.config.ts for custom settings:

import { defineConfig } from '@sylphx/bump'

export default defineConfig({
  // Customize commit types
  conventional: {
    types: {
      feat: 'minor',
      fix: 'patch',
      perf: 'patch',
      // Add your own
      improvement: 'minor',
    },
  },

  // Changelog options
  changelog: {
    file: 'CHANGELOG.md',
    groupBy: 'type', // or 'scope' or 'none'
  },

  // Publishing options
  publish: {
    access: 'public',
    tag: 'latest', // or 'next', 'beta', etc.
  },
})

Pre-releases

Use bump files for pre-release versions:

# .bump/beta.md
---
release: minor
prerelease: beta
---

New beta feature.

→ 1.0.0 → 1.1.0-beta.0

Workflow:

  1. Create .bump/beta.md with prerelease: beta
  2. Push → PR created for v1.1.0-beta.0
  3. Merge → publish beta
  4. For stable release, create .bump/stable.md without prerelease
  5. Push → PR created for v1.1.0

Bump Files

While bump works automatically from commits, you can use bump files for:

  • Custom changelog entries with hand-written release notes
  • Manual version specification (e.g., recovery from blocked npm versions)
  • Triggering releases without conventional commits
  • Pre-release versions (alpha, beta, rc)

Creating Bump Files

Use the bump add command:

# Interactive mode - prompts for all options
bump add

# Quick creation
bump add patch                    # Patch release
bump add minor                    # Minor release
bump add major                    # Major release

# With prerelease
bump add minor --alpha            # 1.0.0 → 1.1.0-alpha.0
bump add minor --beta             # 1.0.0 → 1.1.0-beta.0
bump add minor --rc               # 1.0.0 → 1.1.0-rc.0
bump add patch --prerelease next  # Custom prerelease tag

# Target specific package (monorepo)
bump add patch -p @scope/core
bump add minor --package @scope/utils

# With changelog message
bump add minor -m "Added new dashboard feature"

# Explicit version (recovery)
bump add "1.2.3"                  # Set exact version

Or create a markdown file in .bump/ directory manually:

# .bump/feature.md
---
release: minor
---

### New Dashboard

Completely redesigned the analytics dashboard with:
- Real-time data updates
- Customizable widgets
- Export to PDF/CSV

Fields:

  • release - patch, minor, major, or explicit version "1.2.3"
  • prerelease - (optional) alpha, beta, rc
  • package / packages - (optional) target package(s)

Prerelease Versions

# .bump/beta-feature.md
---
release: minor
prerelease: beta
---

New feature in beta testing.

→ 1.0.0 → 1.1.0-beta.0

# .bump/rc.md
---
release: patch
prerelease: rc
packages:
  - @scope/core
  - @scope/utils
---

Release candidate.

→ 1.0.0 → 1.0.1-rc.0

Monorepo Support

Single package:

---
release: patch
package: @scope/core
---

Bug fix for core module.

Multiple packages:

---
release: minor
packages:
  - @scope/core
  - @scope/utils
---

Shared feature across packages.

All packages (omit package field):

---
release: patch
---

Security fix for all packages.

How It Works

  1. Create .bump/*.md file with frontmatter
  2. Push to main → Release PR includes your custom changelog
  3. Merge PR → Bump files are automatically removed

Recovery Example

If npm publish fails due to a blocked version:

# .bump/recovery.md
---
release: "1.2.1"
package: @scope/mypackage
---

Recovery release after npm publish failure.

Push this file, and bump will create a new PR with version 1.2.1.

Action Inputs

Input Description Default
mode auto, release, version, or pr auto
github-token GitHub token required
npm-token NPM token for publishing -
dry-run Preview without publishing false
base-branch Base branch for PR mode main
tag Create git tags true
changelog Update CHANGELOG.md true
github-release Create GitHub release true

Permissions

The workflow requires these permissions:

permissions:
  contents: write      # For creating tags and releases
  pull-requests: write # For creating/updating release PRs

License

MIT

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Modern changelog and release management for Bun

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Releases 59

v1.6.1 Latest
Dec 3, 2025
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