diff --git a/whatsnext-schoolbord/docker-compose.yml b/whatsnext-schoolbord/docker-compose.yml
index c56c92b..ec5a470 100644
--- a/whatsnext-schoolbord/docker-compose.yml
+++ b/whatsnext-schoolbord/docker-compose.yml
@@ -32,7 +32,7 @@ services:
     # DE TAG IS DE VERSIE VAN DE IMAGE EN NIET DIE VAN DE APP: `version` in
     # umbrel-app.yml moet bij élke wijziging omhoog, ook als alleen dit bestand
     # verandert.
-    image: sc.kamenier-hamer.nl/sysop/schoolbord:0.0.19@sha256:7a5ee4cd3f06b1bdbdef0d77d57aa21cf91551bd71acc9e88d8e7560807978bc
+    image: sc.kamenier-hamer.nl/sysop/schoolbord:0.0.20@sha256:9096987cb7117904d83c16f02efce232c97d7a69d44346c488d7ff339765a24a
     restart: on-failure
     # Geen `user:` nodig: de image zet zelf `USER node` (uid 1000), en umbrelOS
     # maakt de datamap aan als `umbrel`, ook uid 1000 (gemeten bij Atreides
diff --git a/whatsnext-schoolbord/umbrel-app.yml b/whatsnext-schoolbord/umbrel-app.yml
index 0eebc99..e5f46ba 100644
--- a/whatsnext-schoolbord/umbrel-app.yml
+++ b/whatsnext-schoolbord/umbrel-app.yml
@@ -13,7 +13,7 @@ storage:
   dataRoot: data
 category: finance
 name: Schoolbord
-version: "0.0.20"
+version: "0.0.21"
 tagline: Tenants, agreements and monthly invoices for a small venue
 description: >-
   Schoolbord keeps the people of a small venue, the agreements made with them, and what follows
@@ -26,7 +26,9 @@ description: >-
   It has its own login and was made for Schooltje Boschoord; it speaks Dutch. Everything stays in your
   app folder on your Umbrel and goes along with your Umbrel backup.
 releaseNotes: >-
-  Going back and forth between related rows: on a selected row, the buttons "Naar ..." stand apart
+  Fixes the start of 0.0.19, which stopped at "Missing translation key: 'nav.group.rental'": the
+  texts of the new buttons had taken the place of those of the menu. With that version it brings
+  going back and forth between related rows: on a selected row, the buttons "Naar ..." stand apart
   after a bar and open what belongs to it on another page. From a person to her agreements, agenda,
   notes and invoices, each as a list narrowed to her; from an agreement to its person, its moments
   and its notes; from the agenda to the agreement, the person and the notes; from an invoice to its