If you wish to update your existing installation of CMS Fiona to the latest version, a migration is required. This will transfer your content and your configuration into the new system. From Fiona 6.5.0 (in some cases from Fiona 6.0.4), the in-place migration method can be used. This method migrates your content, which is stored in the database, much faster than the old dump/restore method.
As the first step of an in-place migration, the configuration of the old installation is copied to the new installation to which it is then adapted. The database configuration is copied as well but will not be changed. Then, the contents of the database is migrated to make it suitable for the new Fiona-Version. In-place means that the database tables are modified directly.
We recommend to update Fiona on a test system first.