diff --git a/web/features/new-rag/__tests__/document-detail-page.spec.tsx b/web/features/new-rag/__tests__/document-detail-page.spec.tsx
index e09294f0ed8..682cbbd8f38 100644
--- a/web/features/new-rag/__tests__/document-detail-page.spec.tsx
+++ b/web/features/new-rag/__tests__/document-detail-page.spec.tsx
@@ -1882,22 +1882,7 @@ describe('DocumentDetailPage', () => {
     expect(chunksQuery.refetch).toHaveBeenCalledOnce()
   })
 
-  it('loads older revisions and always includes the active revision in the selector', async () => {
-    const user = userEvent.setup()
-    revisionsQuery.data = { pages: [{ items: [activeRevision({ revision: 2 })] }] }
-    revisionsQuery.hasNextPage = true
-
-    render(<DocumentDetailPage documentId="document-1" knowledgeSpaceId="space-1" />)
-
-    await user.click(
-      screen.getByRole('combobox', { name: 'dataset.newKnowledge.documentRevision' }),
-    )
-    expect(await screen.findByRole('option', { name: /v3/ })).toBeInTheDocument()
-    await user.click(screen.getByRole('button', { name: 'dataset.newKnowledge.loadMoreRevisions' }))
-    expect(revisionsQuery.fetchNextPage).toHaveBeenCalledOnce()
-  })
-
-  it('restores the selected revision from the URL', () => {
+  it('uses a revision from the URL without exposing revision controls', () => {
     revisionsQuery.data = {
       pages: [{ items: [activeRevision({ revision: 2, state: 'superseded' })] }],
     }
@@ -1907,8 +1892,8 @@ describe('DocumentDetailPage', () => {
     })
 
     expect(
-      screen.getByRole('combobox', { name: 'dataset.newKnowledge.documentRevision' }),
-    ).toHaveTextContent('v2')
+      screen.queryByRole('combobox', { name: 'dataset.newKnowledge.documentRevision' }),
+    ).not.toBeInTheDocument()
     expect(infiniteInput(chunksOptions.mock.lastCall?.[0])(null)).toEqual({
       params: {
         control_space_id: 'space-1',
@@ -1919,62 +1904,6 @@ describe('DocumentDetailPage', () => {
     })
   })
 
-  it('writes revision selection to browser history', async () => {
-    const user = userEvent.setup()
-    revisionsQuery.data = {
-      pages: [{ items: [activeRevision({ revision: 2, state: 'superseded' })] }],
-    }
-    const { onUrlUpdate } = render(
-      <DocumentDetailPage documentId="document-1" knowledgeSpaceId="space-1" />,
-    )
-
-    await user.click(
-      screen.getByRole('combobox', { name: 'dataset.newKnowledge.documentRevision' }),
-    )
-    await user.click(await screen.findByRole('option', { name: /v2/ }))
-
-    await waitFor(() => {
-      const urlUpdate = onUrlUpdate.mock.calls.at(-1)?.[0]
-      expect(urlUpdate?.searchParams.get('revision')).toBe('2')
-      expect(urlUpdate?.options.history).toBe('push')
-    })
-  })
-
-  it('announces revision cursor errors and restores focus when the final page loads', async () => {
-    const user = userEvent.setup()
-    revisionsQuery.hasNextPage = true
-    const rendered = render(
-      <DocumentDetailPage documentId="document-1" knowledgeSpaceId="space-1" />,
-    )
-    const loadMore = screen.getByRole('button', {
-      name: 'dataset.newKnowledge.loadMoreRevisions',
-    })
-
-    await user.click(loadMore)
-    revisionsQuery.isFetchingNextPage = true
-    rendered.rerender(<DocumentDetailPage documentId="document-1" knowledgeSpaceId="space-1" />)
-    revisionsQuery.isFetchingNextPage = false
-    revisionsQuery.isFetchNextPageError = true
-    rendered.rerender(<DocumentDetailPage documentId="document-1" knowledgeSpaceId="space-1" />)
-    expect(screen.getByRole('alert')).toHaveTextContent(
-      'dataset.newKnowledge.documentRevisionsLoadError',
-    )
-    expect(screen.getByRole('button', { name: 'common.operation.retry' })).toHaveFocus()
-
-    await user.click(screen.getByRole('button', { name: 'common.operation.retry' }))
-    revisionsQuery.isFetchingNextPage = true
-    revisionsQuery.isFetchNextPageError = false
-    rendered.rerender(<DocumentDetailPage documentId="document-1" knowledgeSpaceId="space-1" />)
-    revisionsQuery.isFetchingNextPage = false
-    revisionsQuery.hasNextPage = false
-    rendered.rerender(<DocumentDetailPage documentId="document-1" knowledgeSpaceId="space-1" />)
-    await waitFor(() =>
-      expect(
-        screen.getByRole('combobox', { name: 'dataset.newKnowledge.documentRevision' }),
-      ).toHaveFocus(),
-    )
-  })
-
   it('finds a document task on later cursor pages and ignores stale revision tasks', async () => {
     tasksQuery.data = {
       pages: [{ items: [task({ documentId: 'another-document', id: 'another-task' })] }],
diff --git a/web/features/new-rag/document-detail-header.tsx b/web/features/new-rag/document-detail-header.tsx
index f74088b93b1..cff41aa66dc 100644
--- a/web/features/new-rag/document-detail-header.tsx
+++ b/web/features/new-rag/document-detail-header.tsx
@@ -1,16 +1,6 @@
 import type { RefObject } from 'react'
-import type { LogicalDocument, LogicalDocumentRevision } from './document-models'
+import type { LogicalDocument } from './document-models'
 import { Button } from '@langgenius/dify-ui/button'
-import {
-  Select,
-  SelectContent,
-  SelectItem,
-  SelectItemIndicator,
-  SelectItemText,
-  SelectLabel,
-  SelectTrigger,
-} from '@langgenius/dify-ui/select'
-import { useEffect, useRef } from 'react'
 import { useTranslation } from 'react-i18next'
 import Link from '@/next/link'
 
@@ -19,59 +9,29 @@ export function DocumentDetailHeader({
   canCancelReindex,
   cancelReindexBusy,
   document,
-  effectiveRevision,
-  fetchNextRevisionPage,
-  hasNextRevisionPage,
-  isFetchNextRevisionPageError,
-  isFetchingNextRevisionPage,
   onCancelReindex,
   onReindex,
-  onRevisionChange,
   reindexDisabled,
   reindexDisabledReasonId,
   reindexFailed,
   reindexInProgress,
   reindexing,
-  revisions,
   titleRef,
 }: {
   backPath: string
   canCancelReindex: boolean
   cancelReindexBusy: boolean
   document: LogicalDocument
-  effectiveRevision?: number
-  fetchNextRevisionPage: () => void
-  hasNextRevisionPage: boolean
-  isFetchNextRevisionPageError: boolean
-  isFetchingNextRevisionPage: boolean
   onCancelReindex: () => void
   onReindex: () => void
-  onRevisionChange: (revision: number) => void
   reindexDisabled: boolean
   reindexDisabledReasonId?: string
   reindexFailed: boolean
   reindexInProgress: boolean
   reindexing: boolean
-  revisions: Array<Exclude<LogicalDocumentRevision, null>>
   titleRef: RefObject<HTMLHeadingElement | null>
 }) {
   const { t } = useTranslation('dataset')
-  const { t: tCommon } = useTranslation('common')
-  const revisionTriggerRef = useRef<HTMLButtonElement>(null)
-  const loadMoreRequestedRef = useRef(false)
-  const wasFetchingNextPageRef = useRef(false)
-  useEffect(() => {
-    if (isFetchingNextRevisionPage) wasFetchingNextPageRef.current = true
-    if (
-      isFetchingNextRevisionPage ||
-      !wasFetchingNextPageRef.current ||
-      !loadMoreRequestedRef.current
-    )
-      return
-    wasFetchingNextPageRef.current = false
-    loadMoreRequestedRef.current = false
-    if (!isFetchNextRevisionPageError && !hasNextRevisionPage) revisionTriggerRef.current?.focus()
-  }, [hasNextRevisionPage, isFetchNextRevisionPageError, isFetchingNextRevisionPage])
 
   return (
     <>
@@ -93,44 +53,6 @@ export function DocumentDetailHeader({
           </h1>
         </div>
         <div className="flex flex-wrap items-center gap-2">
-          {revisions.length > 0 && effectiveRevision !== undefined && (
-            <Select
-              value={String(effectiveRevision)}
-              onValueChange={(value) => {
-                if (value) onRevisionChange(Number(value))
-              }}
-            >
-              <SelectLabel>{t(($) => $['newKnowledge.documentRevision'])}</SelectLabel>
-              <SelectTrigger ref={revisionTriggerRef} className="h-8 w-fit min-w-28">
-                v{effectiveRevision}
-              </SelectTrigger>
-              <SelectContent>
-                {revisions.map((revision) => (
-                  <SelectItem key={revision.revision} value={String(revision.revision)}>
-                    <SelectItemText>
-                      v{revision.revision} ·{' '}
-                      {t(($) => $[`newKnowledge.revisionState.${revision.state}`])}
-                    </SelectItemText>
-                    <SelectItemIndicator />
-                  </SelectItem>
-                ))}
-              </SelectContent>
-            </Select>
-          )}
-          {(hasNextRevisionPage || isFetchNextRevisionPageError) && (
-            <Button
-              disabled={isFetchingNextRevisionPage}
-              loading={isFetchingNextRevisionPage}
-              onClick={() => {
-                loadMoreRequestedRef.current = true
-                fetchNextRevisionPage()
-              }}
-            >
-              {isFetchNextRevisionPageError
-                ? tCommon(($) => $['operation.retry'])
-                : t(($) => $['newKnowledge.loadMoreRevisions'])}
-            </Button>
-          )}
           <Button
             aria-busy={reindexing || cancelReindexBusy}
             aria-describedby={reindexDisabledReasonId}
@@ -150,11 +72,6 @@ export function DocumentDetailHeader({
           </Button>
         </div>
       </div>
-      {isFetchNextRevisionPageError && (
-        <p className="mt-2 system-xs-regular text-text-destructive" role="alert">
-          {t(($) => $['newKnowledge.documentRevisionsLoadError'])}
-        </p>
-      )}
     </>
   )
 }
diff --git a/web/features/new-rag/document-detail-page.tsx b/web/features/new-rag/document-detail-page.tsx
index 622f4023f4a..79451c097d3 100644
--- a/web/features/new-rag/document-detail-page.tsx
+++ b/web/features/new-rag/document-detail-page.tsx
@@ -275,14 +275,8 @@ export function DocumentDetailPage({
         canCancelReindex={canCancelReindex}
         cancelReindexBusy={cancelReindexBusy}
         document={document}
-        effectiveRevision={effectiveRevision}
-        fetchNextRevisionPage={() => void revisionsQuery.fetchNextPage()}
-        hasNextRevisionPage={revisionsQuery.hasNextPage}
-        isFetchNextRevisionPageError={revisionsQuery.isFetchNextPageError}
-        isFetchingNextRevisionPage={revisionsQuery.isFetchingNextPage}
         onCancelReindex={() => void cancelReindex()}
         onReindex={() => void reindex()}
-        onRevisionChange={(revision) => void setDocumentLocation({ chunk: null, revision })}
         reindexDisabled={
           !canEdit ||
           reindexBusy ||
@@ -300,7 +294,6 @@ export function DocumentDetailPage({
         reindexFailed={latestTask?.state === 'failed'}
         reindexInProgress={reindexInProgress}
         reindexing={reindexBusy || submissionPending}
-        revisions={availableRevisions}
         titleRef={titleRef}
       />
       {!hasEditPermission && (