diff --git a/apps/web/src/layout/Footer.tsx b/apps/web/src/layout/Footer.tsx
index 6c4751a..07bba57 100644
--- a/apps/web/src/layout/Footer.tsx
+++ b/apps/web/src/layout/Footer.tsx
@@ -3,11 +3,16 @@ import { Link } from 'react-router-dom';
 
 import { usePageActionsSlot } from './page-actions';
 
+/** The running Dorfteich version — injected at build time (the Dockerfile
+ * passes the release tag as VITE_APP_VERSION); dev builds show the dev tag. */
+const APP_VERSION: string = (import.meta.env.VITE_APP_VERSION as string) || '0.0.0-dev';
+
 /**
  * The app-wide footer (issue #82): legal links on every view — editor,
  * public pages, and auth screens all render inside AppLayout, so this one
  * spot covers them all. Since the M10 follow-ups the active page portals
- * its connection-status icon into the left half; the legal links sit right.
+ * its connection-status icon into the left half (with the instance version
+ * next to it, #126); the legal links sit right.
  */
 export function Footer(): React.JSX.Element {
   const { t } = useTranslation('legal');
@@ -15,6 +20,7 @@ export function Footer(): React.JSX.Element {
   return (
     <footer className="app-footer">
       <div className="app-footer__status" ref={setStatusElement} />
+      <span className="app-footer__version">{APP_VERSION}</span>
       <span className="app-footer__spacer" />
       <Link to="/legal/imprint">{t('links.imprint')}</Link>
       <span aria-hidden>·</span>
diff --git a/apps/web/src/styles/base.css b/apps/web/src/styles/base.css
index 9bd438c..d1de605 100644
--- a/apps/web/src/styles/base.css
+++ b/apps/web/src/styles/base.css
@@ -148,7 +148,6 @@ button {
   padding: var(--space-1) var(--space-2);
 }
 
-
 .sidebar__pages {
   list-style: none;
   margin: 0 0 var(--space-3);
@@ -711,6 +710,12 @@ button {
   align-items: center;
 }
 
+/* Instance version next to the connection status (#126). */
+.app-footer__version {
+  font-size: 0.8rem;
+  white-space: nowrap;
+}
+
 .legal-page {
   max-width: 44rem;
 }