diff --git a/README.md b/README.md
index 9f19661..0c8c516 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,12 @@ git fetch upstream --tags
 git merge v1.0.12        # the next release tag
 ```
 
+## Versions
+
+INBUXA Admin has its own dated version (`inbuxa-version.json`), shown with the
+WebUI release it's based on: `INBUXA Admin 2026.9.18 (WebUI 1.0.11)`.
+`package.json` keeps upstream's version, so upstream's bumps merge cleanly.
+
 ## License and credits
 
 Free software under the [GNU Affero General Public License, version 3](./LICENSES/AGPL-3.0-only.txt).
diff --git a/inbuxa-version.json b/inbuxa-version.json
new file mode 100644
index 0000000..2f57ffb
--- /dev/null
+++ b/inbuxa-version.json
@@ -0,0 +1,3 @@
+{
+  "version": "2026.9.18"
+}
diff --git a/src/components/layout/TopBar.tsx b/src/components/layout/TopBar.tsx
index 3013b13..77e9d6d 100644
--- a/src/components/layout/TopBar.tsx
+++ b/src/components/layout/TopBar.tsx
@@ -88,7 +88,7 @@ export function TopBar() {
             </Link>
           </TooltipTrigger>
           <TooltipContent side="bottom">
-            {t('version.label', 'INBUXA Admin v{{version}}', { version: __APP_VERSION__ })}
+            {t('version.label', 'INBUXA Admin {{version}}', { version: __APP_VERSION__ })}
           </TooltipContent>
         </Tooltip>
       </TooltipProvider>
diff --git a/src/i18n/en.json b/src/i18n/en.json
index 17c6f26..c9777fb 100644
--- a/src/i18n/en.json
+++ b/src/i18n/en.json
@@ -303,7 +303,7 @@
   },
   "logout": "Logout",
   "version": {
-    "label": "INBUXA Admin v{{version}}"
+    "label": "INBUXA Admin {{version}}"
   },
   "oauth": {
     "backToLogin": "Back to login",
diff --git a/vite.config.ts b/vite.config.ts
index b8d037f..92ce537 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -5,11 +5,14 @@ import react from '@vitejs/plugin-react'
 import tailwindcss from '@tailwindcss/vite'
 import path from 'path'
 import { version } from './package.json' with { type: 'json' }
+// INBUXA's own dated version lives apart from package.json, whose version
+// follows upstream WebUI so its bumps merge without conflicts.
+import inbuxa from './inbuxa-version.json' with { type: 'json' }
 
 export default defineConfig({
   base: './',
   define: {
-    __APP_VERSION__: JSON.stringify(version),
+    __APP_VERSION__: JSON.stringify(`${inbuxa.version} (WebUI ${version})`),
   },
   plugins: [react(), tailwindcss()],
   resolve: {