diff --git a/README.md b/README.md
index 0b108db..e0788c0 100644
--- a/README.md
+++ b/README.md
@@ -98,7 +98,8 @@ automatically in the browser:
   by the build, checked when the tab comes back into view and every 30
   minutes): «Neue Version verfügbar.» · «Neu laden». The code survives the
   reload; Python's session doesn't.
-- ⋮ **Info** shows the version - the short commit and the build date, as in
+- ⋮ **Info** shows the version - the short commit, the bundled glpython-editor's
+  tag (from `package.json`) and the build date, as in
   `version.json` - and **Nach Updates suchen** runs the same check: «Diese
   Version ist aktuell.», or the notice with «Neu laden». When a learner reports
   a problem, it tells whether their browser still runs an old version.
diff --git a/scripts/check-ide-browser.mjs b/scripts/check-ide-browser.mjs
index dcfc594..cb45e06 100644
--- a/scripts/check-ide-browser.mjs
+++ b/scripts/check-ide-browser.mjs
@@ -604,6 +604,8 @@ try {
     await page.getByRole('menuitem', { name: 'Info' }).click()
     const dialog = page.getByRole('dialog')
     assert.match(await dialog.innerText(), new RegExp(`Version\\s+${version.slice(0, 7)}`))
+    const editorSpec = JSON.parse(readFileSync('package.json', 'utf8')).dependencies['glpython-editor'].split('#')[1]
+    assert.match(await dialog.innerText(), new RegExp(`Editor\\s+${/^[0-9a-f]{40}$/.test(editorSpec) ? editorSpec.slice(0, 7) : editorSpec.replace(/\./g, '\\.')}`), 'the editor\'s version')
     await dialog.getByRole('button', { name: 'Nach Updates suchen' }).click()
     await page.waitForFunction(() => document.querySelector('.ide-info-check [role=status]')?.textContent === 'Diese Version ist aktuell.', null, { timeout: 10000 })
     // A newer deploy: the same check offers the reload.
diff --git a/src/App.tsx b/src/App.tsx
index 802b1bd..188b0c0 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -41,6 +41,9 @@ function timeAgo(time: number, locale: string, justNow: string): string {
 // deployed now (version.json, see vite.config.ts): a tab that stayed open -
 // on an iPad often for days - offers to load the new one; ⋮ «Info» shows it.
 declare const __GLPYTHON_IDE_VERSION__: string
+// The glpython-editor version it bundles (its tag), for ⋮ «Info» too: most
+// of what learners see (editor, Tests, visualizer, hints) comes from there.
+declare const __GLPYTHON_EDITOR_VERSION__: string
 declare const __GLPYTHON_IDE_BUILT__: string
 const VERSION_CHECK_MS = 30 * 60 * 1000
 async function checkForNewVersion(): Promise<'current' | 'available' | 'failed'> {
@@ -521,6 +524,7 @@ function App() {
           <div className="ide-dialog-head"><strong id="ide-info-title">glpython</strong><button type="button" className="icon-button small" aria-label={t.dismiss} title={t.dismiss} onClick={closeInfo}><X size={16} /></button></div>
           <dl className="ide-info-list">
             <dt>{t.version}</dt><dd><code>{__GLPYTHON_IDE_VERSION__.slice(0, 7)}</code></dd>
+            <dt>{t.editorVersion}</dt><dd><code>{__GLPYTHON_EDITOR_VERSION__}</code></dd>
             <dt>{t.built}</dt><dd>{versionDate}</dd>
           </dl>
           <div className="ide-info-check">
diff --git a/src/i18n.ts b/src/i18n.ts
index 9656811..9124c84 100644
--- a/src/i18n.ts
+++ b/src/i18n.ts
@@ -37,6 +37,8 @@ type ShellStrings = {
   featureLabels: Record<'run' | 'tests' | 'visualize' | 'repl' | 'export' | 'coverage' | 'listtree' | 'tree', string>
   version: string
   built: string
+  // The bundled glpython-editor's version in ⋮ «Info».
+  editorVersion: string
   checkForUpdates: string
   checkingForUpdates: string
   upToDate: string
@@ -118,6 +120,7 @@ export const translations: Record<Locale, Translation> = {
     },
     version: 'Version',
     built: 'Built',
+    editorVersion: 'Editor',
     checkForUpdates: 'Check for updates',
     checkingForUpdates: 'Checking …',
     upToDate: 'This version is up to date.',
@@ -194,6 +197,7 @@ export const translations: Record<Locale, Translation> = {
     },
     version: 'Version',
     built: 'Erstellt',
+    editorVersion: 'Editor',
     checkForUpdates: 'Nach Updates suchen',
     checkingForUpdates: 'Wird geprüft …',
     upToDate: 'Diese Version ist aktuell.',
diff --git a/vite.config.ts b/vite.config.ts
index f249655..1b6fbbb 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -1,4 +1,5 @@
 import { execSync } from 'node:child_process'
+import { readFileSync } from 'node:fs'
 import react from '@vitejs/plugin-react'
 import { defineConfig, type Plugin } from 'vite'
 
@@ -9,6 +10,13 @@ const version = process.env.GITHUB_SHA ?? (() => {
   try { return execSync('git rev-parse HEAD').toString().trim() } catch { return 'dev' }
 })()
 const built = new Date().toISOString()
+// The glpython-editor it bundles, as package.json pins it: the tag
+// ("…glpython-editor.git#v0.1.30"), or a commit's first 7 characters.
+const editorVersion = (() => {
+  const spec = (JSON.parse(readFileSync(new URL('./package.json', import.meta.url), 'utf8')) as { dependencies?: Record<string, string> }).dependencies?.['glpython-editor'] ?? ''
+  const ref = spec.split('#')[1] ?? ''
+  return /^[0-9a-f]{40}$/.test(ref) ? ref.slice(0, 7) : ref || 'unknown'
+})()
 const versionFile: Plugin = {
   name: 'glpython-version-file',
   apply: 'build',
@@ -33,6 +41,7 @@ export default defineConfig({
   define: {
     __GLPYTHON_IDE_VERSION__: JSON.stringify(version),
     __GLPYTHON_IDE_BUILT__: JSON.stringify(built),
+    __GLPYTHON_EDITOR_VERSION__: JSON.stringify(editorVersion),
   },
   // glpython-editor's Pyodide worker is loaded via
   // `new Worker(new URL('./pyodide-worker.js', import.meta.url))`, resolved