Document creating changelog entries in Fern Editor

[devin-ai-integration]

Fern Editor (the visual editor in the Fern Dashboard) can now create changelog entries directly from the UI: hover a changelog in the sidebar, select Add entry, pick the changelog, date, and optional title, and the Editor creates the dated YYYY-MM-DD.mdx file and opens it for editing. This matters because changelog updates previously required knowing the dated-filename convention and adding files through a pull request, which kept non-technical authors from contributing release notes.

Implements docs for: feat(editor): add changelog entry creation (fern-api/fern-platform#14562) — https://github.com/fern-api/fern-platform/pull/14562

Pages changed

• fern/products/docs/pages/component-library/writing-content/visual-editor.mdx — new "Add a changelog entry" section; capability list in "Open the Editor" mentions changelog entries.
• fern/products/docs/pages/navigation/changelogs.mdx — one sentence under "Write a changelog entry" linking to the Editor section.
• fern/products/docs/pages/changelog/2026-09-11.mdx — new Docs changelog entry (developer-tools, navigation).

Summary

Validation: pre-commit run --files <changed> (Vale: 0 errors; remaining warnings are on pre-existing lines) and fern check --warnings (0 errors).

Link to Devin session: https://app.devin.ai/sessions/3659a5ab6334489b9a24c594e2118e96
Open in Devin Desktop: https://app.devin.ai/desktop/session/3659a5ab6334489b9a24c594e2118e96?variant=devin

[devin-ai-integration]

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[github-actions]

📝 [vale] <Microsoft.Wordiness> _{reported by reviewdog 🐶}
Consider using 'drag' instead of 'drag and drop'.

Suggested change

	Log in to the [Dashboard](https://dashboard.buildwithfern.com/) and open Fern Editor from the **Overview** tab. From here you can drag and drop media, create and delete pages, add changelog entries, update branding (logo, favicon, title), and switch to dev mode for source code editing.
	Log in to the [Dashboard](https://dashboard.buildwithfern.com/) and open Fern Editor from the **Overview** tab. From here you can drag media, create and delete pages, add changelog entries, update branding (logo, favicon, title), and switch to dev mode for source code editing.

[github-actions]

🌿 Preview your docs: https://fern-preview-devin-1789146298-editor-changelog-entries.docs.buildwithfern.com/learn

Here are the markdown pages you've updated:

• learn/docs/changelog/2026/9/11
• learn/docs/writing-content/fern-editor
• learn/docs/configuration/changelogs