To add to this, I was looking at this article. There are differences in versions everywhere…
~ $ sudo udm appcenter/app list --filter univentionAppID=keycloak* --properties version
univentionAppID=keycloak*
DN: univentionAppID=keycloak_26.4.4-ucs1,cn=keycloak,cn=apps,cn=univention,dc=adventure,dc=local
version: 26.4.4-ucs1
~ $ sudo univention-keycloak domain-config --get --json | grep domain
"domain_config_version": "25.0.6-ucs4",
"domain_config_init": "25.0.6-ucs4"