CHANGELOG.md (Keep a Changelog)

aid: changelog-md
url: https://raw.githubusercontent.com/api-evangelist/changelog-md/refs/heads/main/apis.yml
name: CHANGELOG.md (Keep a Changelog)
kind: standard
tags:
- Changelog
- Change Tracking
- Documentation
- Markdown
- Open-Source
- Release Management
- Semantic Versioning
- Software Releases
- Versioning
tags_raw:
- Change Log
- Change Tracking
- Documentation
- Markdown
- Open Source
- Release Management
- Semantic Versioning
- Software Releases
- Versioning
type: Index
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: true
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - pricing
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/changelog-md.png
access: Open Source
created: '2025-01-01'
modified: '2026-09-05'
position: Producing
description: CHANGELOG.md is a community convention for a human-readable, Markdown- formatted file at the root of a project
  that records notable changes between versions. The leading specification is "Keep a Changelog" by Olivier Lacan, which defines
  a stable, opinionated set of section headings (Added, Changed, Deprecated, Removed, Fixed, Security) and recommends pairing
  with Semantic Versioning (SemVer). The format is widely adopted across open source and enterprise projects as the de facto
  way to document API and software releases in a way that is readable by humans and parseable by tooling.
apis: []
common:
- type: IssueTracker
  url: https://github.com/olivierlacan/keep-a-changelog/issues
- type: Releases
  url: https://github.com/olivierlacan/keep-a-changelog/releases
- type: CodeOfConduct
  url: https://github.com/olivierlacan/keep-a-changelog/blob/main/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/olivierlacan/keep-a-changelog/blob/main/CONTRIBUTING.md
- type: DomainSecurity
  url: security/changelog-md-domain-security.yml
- type: Website
  url: https://keepachangelog.com/
- type: Specification
  url: https://keepachangelog.com/en/2.0.0/
- type: LegacySpecification
  url: https://keepachangelog.com/en/1.1.0/
- type: Documentation
  url: https://keepachangelog.com/en/2.0.0/
- type: GitHubRepository
  url: https://github.com/olivierlacan/keep-a-changelog
- type: SourceCode
  url: https://github.com/olivierlacan/keep-a-changelog
- type: Support
  url: https://github.com/olivierlacan/keep-a-changelog/discussions
- type: ChangeLog
  url: https://github.com/olivierlacan/keep-a-changelog/blob/main/CHANGELOG.md
- type: ChangeLog
  url: changelog/changelog-md-changelog.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/changelog-md-llms.txt
- type: Packages
  url: packages/changelog-md-packages.yml
- type: Conformance
  url: conformance/changelog-md-conformance.yml
- type: Lifecycle
  url: lifecycle/changelog-md-lifecycle.yml
- type: Conventions
  url: conventions/changelog-md-conventions.yml
- type: Plans
  url: plans/changelog-md-plans-pricing.yml
- type: RelatedSpecification
  url: https://semver.org/
- type: License
  url: https://github.com/olivierlacan/keep-a-changelog/blob/main/LICENSE
- name: Features
  type: Features
  data:
  - name: Markdown-Formatted
  - name: Human-Readable
  - name: Machine-Parseable
  - name: Semantic Sections
  - name: Semantic Versioning Alignment
  - name: Date-Stamped Releases
  - name: Unreleased Section
  - name: Added Section
  - name: Changed Section
  - name: Deprecated Section
  - name: Removed Section
  - name: Fixed Section
  - name: Security Section
  - name: Reverse Chronological Order
  - name: Release Comparison Links
- name: UseCases
  type: UseCases
  data:
  - name: Open Source Project Release Notes
  - name: API Change Documentation
  - name: SDK Release Notes
  - name: Package Manager Metadata
  - name: Library Deprecation Tracking
  - name: Security Disclosure
  - name: Automated Release Tooling
  - name: Monorepo Component Changelogs
  - name: Regulatory / Compliance Change Records
- name: Tools
  type: Tools
  data:
  - name: keep-a-changelog gem
  - name: changelog-from-commits
  - name: changelog-parser (npm)
  - name: git-changelog
  - name: conventional-changelog
  - name: release-please
  - name: changesets
  - name: towncrier
- name: RelatedStandards
  type: Standards
  data:
  - name: Semantic Versioning (SemVer)
  - name: Conventional Commits
  - name: CommonMark
  - name: GitHub Flavored Markdown
  - name: SPDX
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.23'
x-enrichment:
  date: '2026-09-05'
  status: enriched
  artifacts_added: 10
  pass: local-v3