diff --git a/apps/www/md-alternates.test.ts b/apps/www/md-alternates.test.ts
index d610d636063..27791115c60 100644
--- a/apps/www/md-alternates.test.ts
+++ b/apps/www/md-alternates.test.ts
@@ -91,6 +91,25 @@ describe('markdown alternate drift', () => {
     ).toBe(true)
   })
 
+  it('changelog entry page gates its .md alternate on CHANGELOG_PAGES membership', async () => {
+    const source = await fs.readFile(
+      path.join(process.cwd(), 'pages', 'changelog', '[slug].tsx'),
+      'utf-8'
+    )
+    expect(
+      source.includes('CHANGELOG_PAGES.has(`changelog/${entry.slug}`)'),
+      'pages/changelog/[slug].tsx must compute the markdown alternate flag from CHANGELOG_PAGES membership using the changelog/-prefixed key the generator emits'
+    ).toBe(true)
+    expect(
+      source.includes('hasMarkdownVariant &&'),
+      'pages/changelog/[slug].tsx must render the markdown alternate link only when hasMarkdownVariant is true'
+    ).toBe(true)
+    expect(
+      source.includes('rel="alternate" type="text/markdown"'),
+      'pages/changelog/[slug].tsx must advertise the text/markdown alternate for published slugs'
+    ).toBe(true)
+  })
+
   it.for(MDX_SECTIONS)('%s pages advertise their .md sibling', async (urlPrefix) => {
     const appPagePath = path.join(process.cwd(), 'app', urlPrefix, '[slug]', 'page.tsx')
     if (!existsSync(appPagePath)) {
diff --git a/apps/www/pages/changelog/[slug].tsx b/apps/www/pages/changelog/[slug].tsx
index c27fd4281f2..692a8ab1ade 100644
--- a/apps/www/pages/changelog/[slug].tsx
+++ b/apps/www/pages/changelog/[slug].tsx
@@ -5,6 +5,7 @@ import { NextSeo } from 'next-seo'
 import Head from 'next/head'
 import Link from 'next/link'
 
+import { CHANGELOG_PAGES } from '@/app/api-v2/md/content.generated'
 import { ChangelogDetailSidebar } from '@/components/Changelog/ChangelogDetailSidebar'
 import { ChangelogInlineMarkdown } from '@/components/Changelog/ChangelogInlineMarkdown'
 import CTABanner from '@/components/CTABanner'
@@ -20,15 +21,25 @@ type PageProps = {
   slug: string
   frontmatter: ChangelogEntryFrontmatter
   source: MDXRemoteSerializeResult
+  hasMarkdownVariant: boolean
 }
 
-const ChangelogDetailPage = ({ title, created_at, slug, frontmatter, source }: PageProps) => {
+const ChangelogDetailPage = ({
+  title,
+  created_at,
+  slug,
+  frontmatter,
+  source,
+  hasMarkdownVariant,
+}: PageProps) => {
   const plainTitle = stripTitleMarkdown(title)
   return (
     <>
-      <Head>
-        <link rel="alternate" type="text/markdown" href={`/changelog/${slug}.md`} />
-      </Head>
+      {hasMarkdownVariant && (
+        <Head>
+          <link rel="alternate" type="text/markdown" href={`/changelog/${slug}.md`} />
+        </Head>
+      )}
       <NextSeo
         title={`${plainTitle} · Changelog`}
         description={plainTitle}
@@ -106,6 +117,7 @@ export const getStaticProps: GetStaticProps<PageProps> = async ({ params }) => {
       slug: entry.slug,
       frontmatter: entry.frontmatter,
       source,
+      hasMarkdownVariant: CHANGELOG_PAGES.has(`changelog/${entry.slug}`),
     },
     revalidate: 900,
   }