
InterBase 2017 creates databases with ODS 17 by default, but it can connect to databases with ODS 13 and later versions for transactional workload.New InterBase keywords introduced in this release include: COLLATION is a reserved keywords in InterBase 2020.You can use this feature when migrating from old InterBase ODS 11 and 12 databases. InterBase 2020 allows backup of ODS 11 and ODS 12 databases using the gbak command-line tool only using client/server mode, not service manager mode.InterBase 2020 creates databases with ODS 18 by default, but it can connect to databases with ODS 13 and later versions for transactional workload.If you choose to restore the backup to an older version of the server with an older ODS version, please use the 2020 Update 1 GBAK client to restore. Database backups created with InterBase 2020 Update 1 should be restored with a 2020 Update 1 (or greater) client (gbak) or server (service api) version.5 Migration Issues for InterBase XE and earlier.4.1 Windows Registry and Program Files Changes.
