When installing the HF21 on a new instance, we have WARN log messages that should be removed on the server.log on startup:
2020-01-31T12:16:16,249 WARN [pool-3-thread-1] [org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapper] Adding missing column in database: "HIERARCHY"."ISRECORD" 2020-01-31T12:16:16,250 WARN [pool-3-thread-1] [org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapper] Adding missing column in database: "HIERARCHY"."RETAINUNTIL" 2020-01-31T12:16:16,250 WARN [pool-3-thread-1] [org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapper] Adding missing column in database: "HIERARCHY"."HASLEGALHOLD"