Borealis Isolated Postgres add-on databases that were created before April 16, 2022 require minor maintenance to ensure their capabilities match those of more recently-created add-on databases. During maintenance each affected add-on database will experience a brief period where it is made temporarily read-only to ensure data is preserved during the process; write access for each add-on will be restored as soon as maintenance is finished for its corresponding database. All add-on databases created on or after April 16, 2022 will be unaffected by this maintenance.