===== Upgrade from previous versions =====
Go through the following sections.

You will need to backup some files, as they are replaced by the upgrade process.

You may also need to upgrade ADUCID database schema.
  * [[maintenance:update:01-check-versions|Check current software versions]] 
  * [[maintenance:update:02-backup|Backup configuration and database]] 
  * [[maintenance:update:03-update|Update]] 
  * [[maintenance:update:04-check-status|Check status of services]] 
  * [[maintenance:update:05-check-versions|Check current software versions again]]