dtctl-release

name: dtctl-release description: Ship a new dtctl release — bump version, write changelog entries, run tests, commit, tag, push, and write GitHub release notes. Use this skill whenever the user says "release", "ship it", "cut a release", "new version", "bump version", "publish", or asks about the dtctl release process. Also use when the user wants to update CHANGELOG.md for a release or write GitHub release notes.

dtctl Release Process

This skill walks through shipping a new dtctl release end-to-end. The process has six phases: analyze, version, changelog, test, commit/tag/push, and GitHub release notes.

Prerequisites

• You must be on the main branch with all feature branches merged
• The working tree must be clean (git status shows no uncommitted changes)
• If the user is on a feature branch, merge to main first (or ask them to)

Pre-flight check:

git branch --show-current   # Must be "main"
git status                  # Must be clean
git pull origin main        # Must be up to date with remote

If any check fails, stop and resolve before continuing.

Phase 1: Analyze Changes Since Last Release

Identify what changed since the last release to determine the version bump and write good release notes.

# Find the latest release tag
git tag --sort=-version:refname | head -5

# List all commits since that tag
git log <last-tag>..HEAD --oneline

# Check the current Unreleased section in CHANGELOG.md

Read the commits carefully and group them into:

• Features (new commands, new flags, new integrations)
• Bug fixes (corrected behavior)
• Documentation (new or updated docs)
• Security (dependency updates, vulnerability fixes)
• Breaking changes (removed flags, changed defaults)

For each significant feature, explore the actual implementation files to understand what it does. Don't just rely on commit messages — read the code so you can write accurate, detailed release notes.

Phase 2: Determine Version Number

dtctl follows Semantic Versioning (currently pre-1.0, so 0.MINOR.PATCH):

Phase 3: Update Version and Changelog

3a. Bump version in code

Edit pkg/version/version.go — change the Version variable:

var Version = "X.Y.Z"  // update this

This is the only place the version is hardcoded. GoReleaser injects it at build time via -ldflags, but the fallback value here should always match the latest release.

3b. Update CHANGELOG.md

The changelog follows Keep a Changelog format. Move items from [Unreleased] into a new version section:

## [Unreleased]

## [X.Y.Z] - YYYY-MM-DD

### Added
- **Feature name** — description with enough detail that users understand what it does and how to use it; include CLI examples where relevant

### Fixed
- **Bug summary** — what was broken and how it's fixed now

### Changed
- **Change summary** — what changed and why

### Security
- **Security fix** — what was vulnerable and what was upgraded

### Documentation
- **Doc name** — what was added or updated

Also add the comparison link at the bottom of the file:

[X.Y.Z]: https://github.com/dynatrace-oss/dtctl/compare/vPREVIOUS...vX.Y.Z

If a comparison link for the previous version is missing (check!), add that too.

Writing style for changelog entries

• Start each entry with a bold feature/fix name in **double asterisks**
• Follow with an em dash — and a description
• Be specific: mention command names, flag names, file paths, environment variables
• For features, explain both what it does and how to use it
• For fixes, explain what was broken and what the correct behavior is now
• Use semicolons to chain related details in a single entry
• Keep entries to 1-3 lines each

Phase 4: Run Tests

Run the full test suite and build to catch any issues before releasing:

# Run all tests
go test ./...

# Build the binary
make build

# Verify the build works
./bin/dtctl version

All tests must pass. If any fail, fix them before proceeding.

Phase 5: Commit, Tag, and Push

5a. Commit the release

git add CHANGELOG.md pkg/version/version.go
git commit -m "release vX.Y.Z: short summary of key features"

The commit message should follow the pattern: release vX.Y.Z: feature1, feature2, feature3

5b. Push and tag

git push origin main
git tag vX.Y.Z
git push origin vX.Y.Z

Pushing the tag triggers the GitHub Actions release workflow (.github/workflows/release.yml), which automatically:

• Builds cross-platform binaries (linux/darwin/windows, amd64/arm64)
• Signs checksums with cosign (keyless, via OIDC)
• Generates SBOMs with syft
• Creates a GitHub Release with auto-generated changelog
• Pushes an updated Homebrew cask to dynatrace-oss/homebrew-tap

Homebrew

No manual Homebrew update is needed. GoReleaser's homebrew_casks config in .goreleaser.yaml automatically pushes the updated cask to the tap repository using a GitHub App token. The skip_upload: auto setting prevents pre-release tags from being published.

Phase 6: Write GitHub Release Notes

After the tag is pushed, update the GitHub release with polished release notes. The auto-generated changelog from GoReleaser is a raw commit list — replace it with proper release notes.

gh release edit vX.Y.Z --notes "$(cat <<'EOF'
... release notes here ...
EOF
)"

Release notes format

Follow this exact structure (see previous releases for reference — gh release view vPREVIOUS):

## What's New

### Feature Name

Paragraph explaining the feature with context on why it's useful.

\`\`\`bash
# Concrete usage example
dtctl some-command --some-flag
\`\`\`

Additional detail about configuration, behavior, or edge cases. Keep it practical — show users exactly how to use the feature.

### Another Feature

...repeat for each major feature...

## Bug Fixes

- **Short fix title** — one-line explanation of what was broken and what's fixed.
- **Another fix** — description.

## Documentation

- **Doc title** — what was added, with a link if applicable.

## Install / Upgrade

\`\`\`bash
# Homebrew
brew update && brew upgrade dtctl

# Direct install
curl -fsSL https://raw.githubusercontent.com/dynatrace-oss/dtctl/main/install.sh | bash

# Go install
go install github.com/dynatrace-oss/dtctl@vX.Y.Z
\`\`\`

**Full Changelog**: https://github.com/dynatrace-oss/dtctl/compare/vPREVIOUS...vX.Y.Z

Release notes writing style

• Each major feature gets its own ### Heading with a paragraph + code example
• Code examples should be copy-pasteable and realistic
• Bug fixes go in a single bulleted list under ## Bug Fixes
• Always end with the ## Install / Upgrade block
• Always end with the **Full Changelog** comparison link
• Omit sections that don't apply (e.g., no ## Security if there are no security fixes)
• Study previous releases for tone and detail level: gh release view v0.23.0, gh release view v0.22.0

Checklist

Use this to track progress:

1. On main branch, clean working tree, up to date with remote
2. Analyzed all commits since last release
3. Determined version number (semver)
4. Updated pkg/version/version.go
5. Updated CHANGELOG.md (entries + comparison link)
6. Tests pass (go test ./...)
7. Build succeeds (make build)
8. Committed release changes on main
9. Pushed to origin/main
10. Created and pushed tag vX.Y.Z
11. GitHub release notes written via gh release edit