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A useful changelog tells readers who is affected, what changed, why it matters, and whether they need to do anything. Put the most consequential changes first, group entries under clear headings, and use links for detail. Drafts generated from commits or pull requests can help, but review them for accuracy and audience fit before publishing.
What belongs in a changelog?
A changelog is a readable record of meaningful changes over time. Release notes usually explain the changes in a particular release. The terms and formats vary by project: Keep a Changelog presents its format as a convention, not a universal standard, while GitHub releases can connect versioned software with downloadable assets (GitHub’s overview of releases).
Include changes that affect what people can do, observe, install, configure, or rely on. Routine internal work that has no meaningful consequence for the audience may not belong in user-facing notes. A concise entry is more useful than a complete dump of commits.
How do you write a clear entry?
Write for the reader who must understand the change, not for the person who authored the code. GitHub’s style guide recommends a few sentences that answer readers’ questions in sequence, using present tense for current behavior and active wording where possible (GitHub Docs style guide).
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- Name who is affected. Identify a role, user group, workflow, or system when it helps readers recognize whether the note applies to them.
- Give the relevant context. For a fix, describe the unexpected behavior readers saw. For a feature, identify the need it addresses.
- State what changed. Describe the observable behavior or capability in plain language, with technical terms only when the audience needs them.
- Tell readers what to do. Say whether they need to upgrade, migrate, change a setting, or follow instructions. If there is no action, do not imply one.
- Link to useful detail. Point to a migration guide, issue, pull request, security advisory, or documentation page when it helps readers act or verify the change.
For example: “Workspace administrators can now set a longer session timeout. This helps teams keep shared terminals signed in during scheduled maintenance. See the session settings guide for setup details.” It starts with the relevant role, explains the benefit, and offers a next step.
Which changes need their own headings?
Use headings that make the contents easy to scan. Common categories include features, fixes, behavior changes, known issues, security fixes, and deprecations. For a long release, group entries by change type, affected component, or both. Put breaking changes and major features ahead of routine fixes so readers see the information with the greatest impact first.
Features
Explain who benefits, what need the feature meets, what it enables, and where to find setup or usage details.
Fixes
Describe the problem readers encountered and the behavior they should now expect. “Fixed a bug” is not enough to tell a user whether their issue is resolved.
Behavior changes
Identify the affected audience, explain the new behavior, and mention the previous behavior when that comparison helps people adjust.
Known issues
Tell affected readers how to recognize the issue and what they can do next, such as use a workaround or consult a linked support page.
Deprecations and retirements
State what is being phased out or removed, provide timing when it is known, and point to a replacement or migration guidance if one exists. Do not promise a replacement or date that has not been established.
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Make the correction explicit and show when the note was updated so readers can distinguish corrected information from the original release announcement.
How can you check whether the notes are complete?
Before publishing, compare the release against the work that shipped—not just the most visible feature tickets. A 2022 peer-reviewed study of GitHub release-note issues recommends checking coverage across these areas; its checklist is evidence-informed guidance, not a mandatory standard (“Demystifying Software Release Note Issues on GitHub”).
- Breaking changes
- New features and enhancements
- Fixed bugs
- Documentation changes
- Dependency or environment changes
- Security changes
- License changes
Use labels or another consistent way to mark change types during development so reviewers can find omissions. Link related work where it helps trace a claim. The goal is not to publish every implementation detail, but to ensure that important user- or maintainer-facing consequences have not disappeared between merged work and the release notes.
Should you generate release notes from commits?
Automation is useful for collecting candidate changes and preparing a draft. It is not a reliable substitute for explaining a change to its readers: commits are often written for developers, may omit user impact, and can include work that should not appear in public notes. Keep a Changelog describes structured-commit tools such as semantic-release, release-please, Changesets, and git-cliff as ways to select versions and draft changelog content, while cautioning that commit messages and changelog entries serve different readers (Keep a Changelog 2.0).
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On GitHub, generated release-note drafts can include merged pull requests, contributors, and a link to a full changelog. Teams can customize categories with labels and exclude selected labels or users. GitHub’s instructions include reviewing the generated draft to ensure it contains the intended information (Automatically generated release notes).
A practical workflow is to use automation to gather and group candidate changes, then have someone familiar with the release edit the notes for accuracy, reader relevance, missing changes, and next steps. Keep technical traceability for contributors where useful, but provide a concise user-facing explanation when end users are the audience.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Where should the changelog live?
Choose a location readers can find alongside the release or project. Release notes attached to a version can be convenient for users downloading that release. A chronological changelog file in the repository can make changes easier to follow across versions and may remain more portable and discoverable outside a specific release interface. The right choice depends on the project’s audience and publishing conventions; a team can use both when each serves a distinct purpose.
Does every project need Semantic Versioning?
No single versioning or changelog format applies to every project. The UK Cabinet Office Digital Handbook gives a specific public-sector rule: open-source projects, or projects whose changes affect third parties, must use a version compatible with Semantic Versioning. In that handbook, a major version indicates incompatible API changes, a minor version indicates backward-compatible functionality, and a patch version indicates backward-compatible bug fixes. This is the handbook’s scoped guidance, not a universal legal requirement (UK Cabinet Office Digital Handbook).
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Check the project’s own policy and any applicable organizational requirements before deciding how to version releases or document them.
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