# Change Log > An index and topic collection covering developer changelog publishing, release-notes platforms, and API change-tracking services. Change Log services help product, engineering, and developer-relations teams communicate releases, deprecations, and breaking changes to customers and integrators thro... This is the **Change Log** topic area of [API Evangelist](https://apievangelist.com) — a network of focused knowledge bases drawn from 16 years of independent API research by Kin Lane. Browse all areas at https://apievangelist.com/areas/. ## Services & Tools - [Aha.io](https://providers.apis.io/providers/aha/) (repo: https://github.com/api-evangelist/aha) - [AnnounceKit](https://providers.apis.io/providers/announcekit/) (repo: https://github.com/api-evangelist/announcekit) - [Apicurio](https://providers.apis.io/providers/apicurio/) (repo: https://github.com/api-evangelist/apicurio) - [Apigee](https://providers.apis.io/providers/apigee/) (repo: https://github.com/api-evangelist/apigee) - [APIMatic](https://providers.apis.io/providers/apimatic/) (repo: https://github.com/api-evangelist/apimatic) - [APIwiz](https://providers.apis.io/providers/apiwiz/) (repo: https://github.com/api-evangelist/apiwiz) - [Axway](https://providers.apis.io/providers/axway/) (repo: https://github.com/api-evangelist/axway) - [Beamer](https://providers.apis.io/providers/beamer/) (repo: https://github.com/api-evangelist/beamer) - [Bump.sh](https://providers.apis.io/providers/bump-sh/) (repo: https://github.com/api-evangelist/bump-sh) - [Canny](https://providers.apis.io/providers/canny/) (repo: https://github.com/api-evangelist/canny) - [CHANGELOG.md](https://providers.apis.io/providers/changelog-md/) (repo: https://github.com/api-evangelist/changelog-md) - [Chameleon](https://providers.apis.io/providers/chameleon/) (repo: https://github.com/api-evangelist/chameleon) - [GitHub](https://providers.apis.io/providers/github/) (repo: https://github.com/api-evangelist/github) - [GitLab](https://providers.apis.io/providers/gitlab/) (repo: https://github.com/api-evangelist/gitlab) - [Kong](https://providers.apis.io/providers/kong/) (repo: https://github.com/api-evangelist/kong) - [LaunchNotes](https://providers.apis.io/providers/launchnotes/) (repo: https://github.com/api-evangelist/launchnotes) - [Linear](https://providers.apis.io/providers/linear/) (repo: https://github.com/api-evangelist/linear) - [Loops](https://providers.apis.io/providers/loops/) (repo: https://github.com/api-evangelist/loops) - [Notion](https://providers.apis.io/providers/notion/) (repo: https://github.com/api-evangelist/notion) - [Oasdiff](https://providers.apis.io/providers/oasdiff/) (repo: https://github.com/api-evangelist/oasdiff) - [Optic](https://providers.apis.io/providers/optic/) (repo: https://github.com/api-evangelist/optic) - [Postman](https://providers.apis.io/providers/postman/) (repo: https://github.com/api-evangelist/postman) - [Productboard](https://providers.apis.io/providers/productboard/) (repo: https://github.com/api-evangelist/productboard) - [Redocly](https://providers.apis.io/providers/redocly/) (repo: https://github.com/api-evangelist/redocly) - [Statuspage](https://providers.apis.io/providers/statuspage/) (repo: https://github.com/api-evangelist/statuspage) - [Stoplight](https://providers.apis.io/providers/stoplight/) (repo: https://github.com/api-evangelist/stoplight) - [SwaggerHub](https://providers.apis.io/providers/swaggerhub/) (repo: https://github.com/api-evangelist/swaggerhub) - [Tyk](https://providers.apis.io/providers/tyk/) (repo: https://github.com/api-evangelist/tyk) - [Userback](https://providers.apis.io/providers/userback/) (repo: https://github.com/api-evangelist/userback) - [Userpilot](https://providers.apis.io/providers/userpilot/) (repo: https://github.com/api-evangelist/userpilot) - [WSO2](https://providers.apis.io/providers/wso2/) (repo: https://github.com/api-evangelist/wso2) ## Common Features - **Customer-Facing Changelog Publishing**: Dedicated platforms like LaunchNotes, AnnounceKit, and Beamer give product and developer-relations teams structured workflows to publish customer-facing changelog entries, release notes, and deprecation notices. - **In-App Release Widgets**: Tools like Beamer, Chameleon, and Userpilot embed changelog widgets and what-is-new notifications directly inside applications so users discover updates in context. - **API Specification Diffing**: Spec-diff tools like oasdiff and Optic compare OpenAPI definitions across versions to detect breaking and non-breaking changes, generate structured changelogs, and gate releases in CI. - **Release Notes Feeds and Webhooks**: Most changelog platforms expose RSS, Atom, JSON, or webhook feeds of release entries so other systems can react to releases programmatically. - **Roadmap and Feedback Integration**: Platforms like Canny, Productboard, and Aha tie changelog entries back to feedback, requests, and roadmap items so customers see the full lifecycle from idea to ship. - **API Versioning and Deprecation Tracking**: API management platforms like Kong, Tyk, Apigee, and Bump.sh track API versions and surface deprecations through documentation portals and machine-readable feeds. - **Changelog Templates and Conventions**: Conventions like Keep a Changelog provide a stable Markdown structure (Added, Changed, Deprecated, Removed, Fixed, Security) widely adopted across open source and enterprise projects. - **Multi-Channel Release Communication**: Modern changelog platforms distribute the same release entry to email, in-app widgets, RSS, Slack, and developer portals, ensuring every audience sees the update through their preferred channel. ## Use Cases - **Public API Changelog Publishing**: API providers publish customer-facing changelogs of new endpoints, breaking changes, and deprecations on platforms like LaunchNotes or Bump.sh to keep integrators informed. - **Automated Breaking-Change Detection**: Engineering teams run oasdiff or Optic in CI to detect breaking changes between OpenAPI versions and block merges that would silently break consumers. - **In-App Product Update Announcements**: Product teams use Beamer, AnnounceKit, or Chameleon to show in-app changelog widgets that notify end users of new features without leaving the application. - **Customer Feedback to Release Loop**: Teams use Canny or Productboard to collect feedback, prioritize features, and then announce shipped work back to the same customers via a connected changelog. - **Developer Portal Release Notes**: API management platforms like Apigee, Kong, and SwaggerHub publish release notes alongside API documentation so developer portals stay current with each version. - **Open Source Release Documentation**: Open source projects follow the Keep a Changelog convention and pair it with GitHub or GitLab releases to publish human-readable changelogs alongside semantic version tags. - **Deprecation Lifecycle Communication**: API teams use changelog platforms to announce upcoming deprecations, surface them through Deprecation HTTP headers, and track adoption of newer versions. - **Customer-Facing Status and Release Notes**: Incident and status platforms like Statuspage combine system status with release notes so customers see both reliability and feature updates in one place. ## Related Areas - [Versioning](https://versioning.apievangelist.com): An index and topic collection covering API versioning patterns, schema evolution, and breaking-change detection acros... - [Deprecation](https://deprecation.apievangelist.com): API deprecation, sunset headers, end-of-life management, and API retirement practices, including RFC 8594 Sunset, the... - [Logging](https://logging.apievangelist.com): An index and topic collection covering log ingestion, log search, log aggregation, and log pipeline services. Logging... - [Road Map](https://road-map.apievangelist.com): An index and topic collection covering public product road map publishing, feature voting, customer feedback aggregat... - [Regulation](https://regulation.apievangelist.com): Regulation encompasses the rules, laws, and standards established by governments, agencies, and standards bodies that... - [Transparency](https://transparency.apievangelist.com): An index and topic collection covering public-facing transparency surfaces across the API and platform ecosystem. Tra... ## More - [Latest Change Log stories](/stories/) - [All API Evangelist topic areas](https://apievangelist.com/areas/) - [API Evangelist network index (llms.txt)](https://apievangelist.com/llms.txt)