Release version 3.9.20230828 Container images: particify/arsnova-server-core:3.9.20230828 particify/arsnova-server-gateway:3.9.20230828 particify/arsnova-server-websocket:3.9.20230828 particify/arsnova-server-authz:3.9.20230828 particify/arsnova-server-comments:3.9.20230828 particify/arsnova-server-formatting:3.9.20230828 particify/arsnova-webclient:3.9.20230828