diff --git a/whatsnext-schoolbord/docker-compose.yml b/whatsnext-schoolbord/docker-compose.yml
index 63246b4..0b888d5 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:0.0.21@sha256:b3f2a7d3fdce498e0215cdbf520f44bc2980adcfdfd8b58089ca32ef9c77737a
+    image: sc.kamenier-hamer.nl/sysop/schoolbord:0.0.23@sha256:1b69312fa13ae9cdbbaf356ed40c8562f0bfd2fe9ea2af7b5786d2d14efdf2d1
     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 4f741e9..33fa53d 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: "0.0.22"
+version: "0.0.23"
 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 +26,14 @@ 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: >-
-  Two database steps in this version: make a backup first. What goes to the website is now clear
+  Fixes two things on Afspraken. An agreement whose day part had later been made narrower could no
+  longer be changed at all, not even its link or its thermostat ("De tijden vallen buiten ..."); now
+  a narrower day part moves what no longer fits to the shortest day part it does fit, or none, and a
+  database step repairs what already stood outside its part. And the switch Thermostaat in the edit
+  row is saved again. On Personen, mailing a role is an envelope next to the plus, and a basic login
+  sees a person's agreements and website defaults without invoices or amounts. Coming from 0.0.21 or
+  earlier, it also brings the following, with two more database steps: make a backup first.
+  What goes to the website is now clear
   everywhere: every person, agreement and moment on the agenda shows in its drawer whether it is on
   the website, why not, and where its title, link and price come from. The switch Website works per
   moment on the agenda, and a free agenda item can go to the website too. A cancelled moment is