diff --git a/packages/docusaurus-migrate/src/__tests__/__fixtures__/expectedSiteConfig.js b/packages/docusaurus-migrate/src/__tests__/__fixtures__/expectedSiteConfig.js
index 0b2da419c9..beca10e789 100644
--- a/packages/docusaurus-migrate/src/__tests__/__fixtures__/expectedSiteConfig.js
+++ b/packages/docusaurus-migrate/src/__tests__/__fixtures__/expectedSiteConfig.js
@@ -37,7 +37,6 @@ module.exports = {
       '@docusaurus/preset-classic',
       {
         docs: {
-          homePageId: 'installation',
           showLastUpdateAuthor: true,
           showLastUpdateTime: true,
           editUrl: 'https://github.com/facebook/docusaurus/edit/main/docs/',
@@ -53,7 +52,7 @@ module.exports = {
       title: 'Docusaurus',
       logo: {src: 'img/docusaurus.svg'},
       items: [
-        {to: 'docs/', label: 'Docs', position: 'left'},
+        {to: 'docs/installation', label: 'Docs', position: 'left'},
         {to: 'docs/tutorial-setup', label: 'Tutorial', position: 'left'},
         {to: '/users', label: 'Users', position: 'left'},
         {
diff --git a/packages/docusaurus-migrate/src/index.ts b/packages/docusaurus-migrate/src/index.ts
index 08375170c7..d4c5449a23 100644
--- a/packages/docusaurus-migrate/src/index.ts
+++ b/packages/docusaurus-migrate/src/index.ts
@@ -226,9 +226,6 @@ export function createConfigFile({
   'v1Config' | 'siteDir' | 'newDir'
 >): VersionTwoConfig {
   const siteConfig = v1Config;
-  const homePageId = siteConfig.headerLinks?.filter((value) => value.doc)[0]
-    .doc;
-
   const customConfigFields: Record<string, unknown> = {};
   // add fields that are unknown to v2 to customConfigFields
   Object.keys(siteConfig).forEach((key) => {
@@ -309,7 +306,6 @@ export function createConfigFile({
         {
           docs: {
             ...(v2DocsPath && {path: v2DocsPath}),
-            homePageId,
             showLastUpdateAuthor: true,
             showLastUpdateTime: true,
             editUrl: siteConfig.editUrl,
@@ -334,7 +330,7 @@ export function createConfigFile({
             const position = 'left';
             if (doc) {
               return {
-                to: `docs/${doc === homePageId ? '' : doc}`,
+                to: `docs/${doc}`,
                 label,
                 position,
               };
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/simple-site/docs/hello.md b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/simple-site/docs/hello.md
index 6671f038f7..655fdca2bc 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/simple-site/docs/hello.md
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/simple-site/docs/hello.md
@@ -3,6 +3,7 @@ id: hello
 title: Hello, World !
 sidebar_label: Hello sidebar_label
 tags: [tag-1, tag 3]
+slug: /
 ---
 
 Hi, Endilie here :)
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/site-with-doc-label/docs/hello-1.md b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/site-with-doc-label/docs/hello-1.md
index 88f42926c1..22c39170b0 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/site-with-doc-label/docs/hello-1.md
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/site-with-doc-label/docs/hello-1.md
@@ -1,6 +1,7 @@
 ---
 id: hello-1
 title: Hello 1
+slug: /
 ---
 
 Hello World 1!
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/docs/hello.md b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/docs/hello.md
index 41c6fd549a..afe654dc0d 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/docs/hello.md
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/docs/hello.md
@@ -1 +1,4 @@
+---
+slug: /
+---
 Hello `next` !
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/i18n/en/docusaurus-plugin-content-docs/version-1.0.0/hello.md b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/i18n/en/docusaurus-plugin-content-docs/version-1.0.0/hello.md
index 9f7d1032ab..6940424b19 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/i18n/en/docusaurus-plugin-content-docs/version-1.0.0/hello.md
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/i18n/en/docusaurus-plugin-content-docs/version-1.0.0/hello.md
@@ -1 +1,4 @@
+---
+slug: /
+---
 Hello `1.0.0` ! (translated en)
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/i18n/fr/docusaurus-plugin-content-docs/version-1.0.0/hello.md b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/i18n/fr/docusaurus-plugin-content-docs/version-1.0.0/hello.md
index 75ded9ec70..5cf148d17a 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/i18n/fr/docusaurus-plugin-content-docs/version-1.0.0/hello.md
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/i18n/fr/docusaurus-plugin-content-docs/version-1.0.0/hello.md
@@ -1 +1,4 @@
+---
+slug: /
+---
 Hello `1.0.0` ! (translated fr)
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/versioned_docs/version-1.0.0/hello.md b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/versioned_docs/version-1.0.0/hello.md
index c286d646ed..db13f1d75b 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/versioned_docs/version-1.0.0/hello.md
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/versioned_docs/version-1.0.0/hello.md
@@ -1 +1,4 @@
+---
+slug: /
+---
 Hello `1.0.0` !
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/versioned_docs/version-1.0.1/hello.md b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/versioned_docs/version-1.0.1/hello.md
index 41a1573f22..a9950ade90 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/versioned_docs/version-1.0.1/hello.md
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/__fixtures__/versioned-site/versioned_docs/version-1.0.1/hello.md
@@ -1 +1,4 @@
+---
+slug: /
+---
 Hello `1.0.1` !
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/__snapshots__/docs.test.ts.snap b/packages/docusaurus-plugin-content-docs/src/__tests__/__snapshots__/docs.test.ts.snap
index 97a9e725b2..3cbc918e83 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/__snapshots__/docs.test.ts.snap
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/__snapshots__/docs.test.ts.snap
@@ -25,7 +25,7 @@ Array [
   Array [
     undefined,
     Object {
-      "permalink": "/docs/hello",
+      "permalink": "/docs/",
       "title": "Hello sidebar_label",
     },
   ],
@@ -41,7 +41,7 @@ Array [
   ],
   Array [
     Object {
-      "permalink": "/docs/hello",
+      "permalink": "/docs/",
       "title": "Hello sidebar_label",
     },
     Object {
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/__snapshots__/index.test.ts.snap b/packages/docusaurus-plugin-content-docs/src/__tests__/__snapshots__/index.test.ts.snap
index 48511958c8..1e5396a053 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/__snapshots__/index.test.ts.snap
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/__snapshots__/index.test.ts.snap
@@ -314,7 +314,8 @@ Object {
     \\"tags\\": [
       \\"tag-1\\",
       \\"tag 3\\"
-    ]
+    ],
+    \\"slug\\": \\"/\\"
   },
   \\"sidebar\\": \\"docs\\",
   \\"previous\\": {
@@ -1528,7 +1529,9 @@ Object {
   \\"permalink\\": \\"/docs/next/\\",
   \\"tags\\": [],
   \\"version\\": \\"current\\",
-  \\"frontMatter\\": {},
+  \\"frontMatter\\": {
+    \\"slug\\": \\"/\\"
+  },
   \\"sidebar\\": \\"docs\\",
   \\"previous\\": {
     \\"title\\": \\"bar\\",
@@ -1606,7 +1609,9 @@ Object {
   \\"permalink\\": \\"/docs/1.0.0/\\",
   \\"tags\\": [],
   \\"version\\": \\"1.0.0\\",
-  \\"frontMatter\\": {},
+  \\"frontMatter\\": {
+    \\"slug\\": \\"/\\"
+  },
   \\"sidebar\\": \\"version-1.0.0/docs\\",
   \\"previous\\": {
     \\"title\\": \\"baz\\",
@@ -1684,7 +1689,9 @@ Object {
   \\"permalink\\": \\"/docs/\\",
   \\"tags\\": [],
   \\"version\\": \\"1.0.1\\",
-  \\"frontMatter\\": {},
+  \\"frontMatter\\": {
+    \\"slug\\": \\"/\\"
+  },
   \\"sidebar\\": \\"VersionedSideBarNameDoesNotMatter/docs\\",
   \\"previous\\": {
     \\"title\\": \\"bar\\",
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/docs.test.ts b/packages/docusaurus-plugin-content-docs/src/__tests__/docs.test.ts
index 66453dbcf0..9cfbad81bf 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/docs.test.ts
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/docs.test.ts
@@ -236,14 +236,15 @@ describe('simple site', () => {
       id: 'hello',
       unversionedId: 'hello',
       sourceDirName: '.',
-      permalink: '/docs/hello',
-      slug: '/hello',
+      permalink: '/docs/',
+      slug: '/',
       title: 'Hello, World !',
       description: `Hi, Endilie here :)`,
       frontMatter: {
         id: 'hello',
         title: 'Hello, World !',
         sidebar_label: 'Hello sidebar_label',
+        slug: '/',
         tags: ['tag-1', 'tag 3'],
       },
       tags: [
@@ -259,76 +260,6 @@ describe('simple site', () => {
     });
   });
 
-  test('homePageId doc', async () => {
-    const {siteDir, context, options, currentVersion} = await loadSite({
-      options: {homePageId: 'hello'},
-    });
-
-    const testUtilsLocal = createTestUtils({
-      siteDir,
-      context,
-      options,
-      versionMetadata: currentVersion,
-    });
-
-    await testUtilsLocal.testMeta(path.join('hello.md'), {
-      version: 'current',
-      id: 'hello',
-      unversionedId: 'hello',
-      sourceDirName: '.',
-      permalink: '/docs/',
-      slug: '/',
-      title: 'Hello, World !',
-      description: `Hi, Endilie here :)`,
-      frontMatter: {
-        id: 'hello',
-        title: 'Hello, World !',
-        sidebar_label: 'Hello sidebar_label',
-        tags: ['tag-1', 'tag 3'],
-      },
-      tags: [
-        {
-          label: 'tag-1',
-          permalink: '/docs/tags/tag-1',
-        },
-        {
-          label: 'tag 3',
-          permalink: '/docs/tags/tag-3',
-        },
-      ],
-    });
-  });
-
-  test('homePageId doc nested', async () => {
-    const {siteDir, context, options, currentVersion} = await loadSite({
-      options: {homePageId: 'foo/bar'},
-    });
-
-    const testUtilsLocal = createTestUtils({
-      siteDir,
-      context,
-      options,
-      versionMetadata: currentVersion,
-    });
-
-    await testUtilsLocal.testMeta(path.join('foo', 'bar.md'), {
-      version: 'current',
-      id: 'foo/bar',
-      unversionedId: 'foo/bar',
-      sourceDirName: 'foo',
-      permalink: '/docs/',
-      slug: '/',
-      title: 'Bar',
-      description: 'This is custom description',
-      frontMatter: {
-        description: 'This is custom description',
-        id: 'bar',
-        title: 'Bar',
-      },
-      tags: [],
-    });
-  });
-
   test('docs with editUrl', async () => {
     const {siteDir, context, options, currentVersion} = await loadSite({
       options: {
@@ -550,33 +481,6 @@ describe('simple site', () => {
     );
   });
 
-  test('docs with slug on doc home', async () => {
-    const {siteDir, context, options, currentVersion} = await loadSite({
-      options: {
-        homePageId: 'homePageId',
-      },
-    });
-
-    const testUtilsLocal = createTestUtils({
-      siteDir,
-      context,
-      options,
-      versionMetadata: currentVersion,
-    });
-    expect(() => {
-      testUtilsLocal.processDocFile(
-        createFakeDocFile({
-          source: 'homePageId',
-          frontmatter: {
-            slug: '/x/y',
-          },
-        }),
-      );
-    }).toThrowErrorMatchingInlineSnapshot(
-      `"The docs homepage (homePageId=homePageId) is not allowed to have a frontmatter slug=/x/y => you have to choose either homePageId or slug, not both"`,
-    );
-  });
-
   test('custom pagination', async () => {
     const {defaultTestUtils, options, versionsMetadata} = await loadSite();
     const docs = await readVersionDocs(versionsMetadata[0], options);
@@ -706,11 +610,13 @@ describe('versioned site', () => {
       version: 'current',
       unversionedId: 'hello',
       sourceDirName: '.',
-      permalink: '/docs/next/hello',
-      slug: '/hello',
+      permalink: '/docs/next/',
+      slug: '/',
       title: 'hello',
       description: 'Hello next !',
-      frontMatter: {},
+      frontMatter: {
+        slug: '/',
+      },
       tags: [],
     });
   });
@@ -734,11 +640,13 @@ describe('versioned site', () => {
       id: 'version-1.0.0/hello',
       unversionedId: 'hello',
       sourceDirName: '.',
-      permalink: '/docs/1.0.0/hello',
-      slug: '/hello',
+      permalink: '/docs/1.0.0/',
+      slug: '/',
       title: 'hello',
       description: 'Hello 1.0.0 ! (translated en)',
-      frontMatter: {},
+      frontMatter: {
+        slug: '/',
+      },
       version: '1.0.0',
       source:
         '@site/i18n/en/docusaurus-plugin-content-docs/version-1.0.0/hello.md',
@@ -760,12 +668,14 @@ describe('versioned site', () => {
       id: 'version-1.0.1/hello',
       unversionedId: 'hello',
       sourceDirName: '.',
-      permalink: '/docs/hello',
-      slug: '/hello',
+      permalink: '/docs/',
+      slug: '/',
       title: 'hello',
       description: 'Hello 1.0.1 !',
       version: '1.0.1',
-      frontMatter: {},
+      frontMatter: {
+        slug: '/',
+      },
       tags: [],
     });
   });
@@ -851,11 +761,13 @@ describe('versioned site', () => {
       id: 'version-1.0.0/hello',
       unversionedId: 'hello',
       sourceDirName: '.',
-      permalink: '/docs/1.0.0/hello',
-      slug: '/hello',
+      permalink: '/docs/1.0.0/',
+      slug: '/',
       title: 'hello',
       description: 'Hello 1.0.0 ! (translated en)',
-      frontMatter: {},
+      frontMatter: {
+        slug: '/',
+      },
       version: '1.0.0',
       source:
         '@site/i18n/en/docusaurus-plugin-content-docs/version-1.0.0/hello.md',
@@ -868,7 +780,7 @@ describe('versioned site', () => {
       version: '1.0.0',
       versionDocsDirPath: 'versioned_docs/version-1.0.0',
       docPath: path.join('hello.md'),
-      permalink: '/docs/1.0.0/hello',
+      permalink: '/docs/1.0.0/',
       locale: 'en',
     });
   });
@@ -892,11 +804,13 @@ describe('versioned site', () => {
       id: 'version-1.0.0/hello',
       unversionedId: 'hello',
       sourceDirName: '.',
-      permalink: '/docs/1.0.0/hello',
-      slug: '/hello',
+      permalink: '/docs/1.0.0/',
+      slug: '/',
       title: 'hello',
       description: 'Hello 1.0.0 ! (translated en)',
-      frontMatter: {},
+      frontMatter: {
+        slug: '/',
+      },
       version: '1.0.0',
       source:
         '@site/i18n/en/docusaurus-plugin-content-docs/version-1.0.0/hello.md',
@@ -925,11 +839,13 @@ describe('versioned site', () => {
       id: 'version-1.0.0/hello',
       unversionedId: 'hello',
       sourceDirName: '.',
-      permalink: '/docs/1.0.0/hello',
-      slug: '/hello',
+      permalink: '/docs/1.0.0/',
+      slug: '/',
       title: 'hello',
       description: 'Hello 1.0.0 ! (translated en)',
-      frontMatter: {},
+      frontMatter: {
+        slug: '/',
+      },
       version: '1.0.0',
       source:
         '@site/i18n/en/docusaurus-plugin-content-docs/version-1.0.0/hello.md',
@@ -959,11 +875,13 @@ describe('versioned site', () => {
       id: 'version-1.0.0/hello',
       unversionedId: 'hello',
       sourceDirName: '.',
-      permalink: '/fr/docs/1.0.0/hello',
-      slug: '/hello',
+      permalink: '/fr/docs/1.0.0/',
+      slug: '/',
       title: 'hello',
       description: 'Hello 1.0.0 ! (translated fr)',
-      frontMatter: {},
+      frontMatter: {
+        slug: '/',
+      },
       version: '1.0.0',
       source:
         '@site/i18n/fr/docusaurus-plugin-content-docs/version-1.0.0/hello.md',
@@ -994,11 +912,13 @@ describe('versioned site', () => {
       id: 'version-1.0.0/hello',
       unversionedId: 'hello',
       sourceDirName: '.',
-      permalink: '/fr/docs/1.0.0/hello',
-      slug: '/hello',
+      permalink: '/fr/docs/1.0.0/',
+      slug: '/',
       title: 'hello',
       description: 'Hello 1.0.0 ! (translated fr)',
-      frontMatter: {},
+      frontMatter: {
+        slug: '/',
+      },
       version: '1.0.0',
       source:
         '@site/i18n/fr/docusaurus-plugin-content-docs/version-1.0.0/hello.md',
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/index.test.ts b/packages/docusaurus-plugin-content-docs/src/__tests__/index.test.ts
index e9b8116183..858798eb06 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/index.test.ts
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/index.test.ts
@@ -247,7 +247,6 @@ describe('simple website', () => {
       normalizePluginOptions(OptionsSchema, {
         path: 'docs',
         sidebarPath,
-        homePageId: 'hello',
       }),
     );
     const pluginContentDir = path.join(context.generatedFilesDir, plugin.name);
@@ -405,6 +404,7 @@ describe('simple website', () => {
         id: 'hello',
         title: 'Hello, World !',
         sidebar_label: 'Hello sidebar_label',
+        slug: '/',
         tags: ['tag-1', 'tag 3'],
       },
       tags: [
@@ -476,7 +476,6 @@ describe('versioned website', () => {
       normalizePluginOptions(OptionsSchema, {
         routeBasePath,
         sidebarPath,
-        homePageId: 'hello',
       }),
     );
     const pluginContentDir = path.join(context.generatedFilesDir, plugin.name);
@@ -654,7 +653,9 @@ describe('versioned website', () => {
       ),
       title: 'hello',
       description: 'Hello next !',
-      frontMatter: {},
+      frontMatter: {
+        slug: '/',
+      },
       version: 'current',
       sidebar: 'docs',
       previous: {
@@ -676,7 +677,9 @@ describe('versioned website', () => {
       ),
       title: 'hello',
       description: 'Hello 1.0.1 !',
-      frontMatter: {},
+      frontMatter: {
+        slug: '/',
+      },
       version: '1.0.1',
       sidebar: 'VersionedSideBarNameDoesNotMatter/docs',
       previous: {
@@ -892,7 +895,6 @@ describe('site with doc label', () => {
       normalizePluginOptions(OptionsSchema, {
         path: 'docs',
         sidebarPath,
-        homePageId: 'hello-1',
       }),
     );
 
diff --git a/packages/docusaurus-plugin-content-docs/src/__tests__/options.test.ts b/packages/docusaurus-plugin-content-docs/src/__tests__/options.test.ts
index 4fb463e5fa..498a08b9ef 100644
--- a/packages/docusaurus-plugin-content-docs/src/__tests__/options.test.ts
+++ b/packages/docusaurus-plugin-content-docs/src/__tests__/options.test.ts
@@ -41,7 +41,6 @@ describe('normalizeDocsPluginOptions', () => {
       path: 'my-docs', // Path to data on filesystem, relative to site dir.
       routeBasePath: 'my-docs', // URL Route.
       tagsBasePath: 'tags', // URL Tags Route.
-      homePageId: 'home', // Document id for docs home page.
       include: ['**/*.{md,mdx}'], // Extensions to include.
       exclude: GlobExcludeDefault,
       sidebarPath: 'my-sidebar', // Path to sidebar configuration for showing a list of markdown pages.
diff --git a/packages/docusaurus-plugin-content-docs/src/docs.ts b/packages/docusaurus-plugin-content-docs/src/docs.ts
index d7b492fc3f..f5f4b4b094 100644
--- a/packages/docusaurus-plugin-content-docs/src/docs.ts
+++ b/packages/docusaurus-plugin-content-docs/src/docs.ts
@@ -126,7 +126,6 @@ function doProcessDocMetadata({
   options: MetadataOptions;
 }): DocMetadataBase {
   const {source, content, lastUpdate, contentPath, filePath} = docFile;
-  const {homePageId} = options;
   const {siteDir, i18n} = context;
 
   const {
@@ -196,24 +195,14 @@ function doProcessDocMetadata({
   // legacy versioned id, requires a breaking change to modify this
   const id = [versionIdPrefix, unversionedId].filter(Boolean).join('/');
 
-  // TODO remove soon, deprecated homePageId
-  const isDocsHomePage = unversionedId === (homePageId ?? '_index');
-  if (frontMatter.slug && isDocsHomePage) {
-    throw new Error(
-      `The docs homepage (homePageId=${homePageId}) is not allowed to have a frontmatter slug=${frontMatter.slug} => you have to choose either homePageId or slug, not both`,
-    );
-  }
-
-  const docSlug = isDocsHomePage
-    ? '/'
-    : getSlug({
-        baseID,
-        source,
-        sourceDirName,
-        frontmatterSlug: frontMatter.slug,
-        stripDirNumberPrefixes: parseNumberPrefixes,
-        numberPrefixParser: options.numberPrefixParser,
-      });
+  const docSlug = getSlug({
+    baseID,
+    source,
+    sourceDirName,
+    frontmatterSlug: frontMatter.slug,
+    stripDirNumberPrefixes: parseNumberPrefixes,
+    numberPrefixParser: options.numberPrefixParser,
+  });
 
   // Note: the title is used by default for page title, sidebar label, pagination buttons...
   // frontMatter.title should be used in priority over contentTitle (because it can contain markdown/JSX syntax)
diff --git a/packages/docusaurus-plugin-content-docs/src/options.ts b/packages/docusaurus-plugin-content-docs/src/options.ts
index 770781b469..8e202cb254 100644
--- a/packages/docusaurus-plugin-content-docs/src/options.ts
+++ b/packages/docusaurus-plugin-content-docs/src/options.ts
@@ -30,7 +30,6 @@ export const DEFAULT_OPTIONS: Omit<PluginOptions, 'id' | 'sidebarPath'> = {
   path: 'docs', // Path to data on filesystem, relative to site dir.
   routeBasePath: 'docs', // URL Route.
   tagsBasePath: 'tags', // URL Tags Route.
-  homePageId: undefined, // TODO remove soon, deprecated
   include: ['**/*.{md,mdx}'], // Extensions to include.
   exclude: GlobExcludeDefault,
   sidebarItemsGenerator: DefaultSidebarItemsGenerator,
@@ -79,7 +78,11 @@ export const OptionsSchema = Joi.object({
     // .allow('') ""
     .default(DEFAULT_OPTIONS.routeBasePath),
   tagsBasePath: Joi.string().default(DEFAULT_OPTIONS.tagsBasePath),
-  homePageId: Joi.string().optional(),
+  homePageId: Joi.any().forbidden().messages({
+    'any.unknown':
+      'The docs plugin option homePageId is not supported anymore. To make a doc the "home", please add "slug: /" in its front matter. See: https://docusaurus.io/docs/next/docs-introduction#home-page-docs',
+  }),
+
   include: Joi.array().items(Joi.string()).default(DEFAULT_OPTIONS.include),
   exclude: Joi.array().items(Joi.string()).default(DEFAULT_OPTIONS.exclude),
   sidebarPath: Joi.alternatives().try(
@@ -165,16 +168,6 @@ export function validateOptions({
     }
   }
 
-  // TODO remove homePageId before end of 2020
-  // "slug: /" is better because the home doc can be different across versions
-  if (options.homePageId) {
-    console.log(
-      chalk.red(
-        `The docs plugin option homePageId=${options.homePageId} is deprecated. To make a doc the "home", prefer frontmatter: "slug: /"`,
-      ),
-    );
-  }
-
   const normalizedOptions = validate(OptionsSchema, options);
 
   if (normalizedOptions.admonitions) {
diff --git a/packages/docusaurus-plugin-content-docs/src/types.ts b/packages/docusaurus-plugin-content-docs/src/types.ts
index 69a3703f21..eae507db4d 100644
--- a/packages/docusaurus-plugin-content-docs/src/types.ts
+++ b/packages/docusaurus-plugin-content-docs/src/types.ts
@@ -50,7 +50,6 @@ export type EditUrlFunction = (editUrlParams: {
 
 export type MetadataOptions = {
   routeBasePath: string;
-  homePageId?: string;
   editUrl?: string | EditUrlFunction;
   editCurrentVersion: boolean;
   editLocalizedFiles: boolean;