How to attach documentation to a GitHub Release as one file

Why documentation should be a release artifact

A link to the latest documentation is useful for active users, but it does not always describe an older binary correctly. Settings, screenshots, APIs, and requirements change. Someone downloading a previous release months later needs the manual that matches that release, not the current website.

Attaching documentation to GitHub Release creates a versioned artifact next to the source archive and product files. A single HTML document is easier to download than a generated website folder and more interactive than a plain collection of Markdown files. It can include multiple logical pages, navigation, search, code, and images.

Prepare documentation for a specific version

Build the manual from the same source revision as the software release. Confirm the supported versions, installation steps, configuration options, public API, migration notes, and known limitations. Remove instructions for features that are not present in the released build.

Place the product version inside the document and in the filename, for example acme-tool-docs-2.4.1.html. A generic name such as documentation.html becomes ambiguous after several downloads. If the manual is multilingual, make the language clear unless both languages are contained in the same document.

Build one standalone HTML file

Documentation maintained as Markdown can remain beside the code and be converted for delivery. For a public repository, follow the GitHub Markdown import workflow. Word and PDF manuals can also be imported as starting material, while pages can be created directly in One File Docs.

Organize the result into a reader-facing page tree and export it. One File Docs embeds the page content, navigation, search, viewer code, styles, and imported images into a single HTML file. Remote fonts, video, analytics, external scripts, and other URL-based resources remain network dependencies and should not be assumed to work offline.

Test the exact file you will upload

Move the exported file into a clean temporary folder and open it directly in a browser. Test the quick start, navigation, search, internal links, images, code samples, and any downloadable references. Disable the network if the release must include offline documentation.

Do not rebuild the document after approval without repeating the check. The reviewed file and the uploaded file should have the same contents. For stricter release processes, record a checksum alongside other build artifacts.

• The document shows the same version as the software.
• The filename contains the product, version, and language when needed.
• Installation and quick-start steps work with a clean setup.
• All required pages, images, and code examples are present.
• Offline behavior and remaining network dependencies are known.

Attach and link the documentation in GitHub Release

Create or edit the GitHub Release for the matching tag and upload the HTML file as a release asset. In the release notes, add a short “Documentation” entry that links directly to the asset and states whether it works offline. Keep migration warnings and critical breaking changes in the release notes as well as in the full manual.

Repeat the process for every supported release instead of replacing one shared file. The repository can continue to host the editable sources, while each release preserves an immutable documentation snapshot that travels with its build.