New article: Fast conversion from Firebird 2.5 to 3.0 with streamed backup-restore

If you need to convert a very big Firebird 2.5 database to 3.0, or many databases during the short period of time (for example, overnight or during the weekend), you will definitely find useful this article: it describes how to speed up the backup-restore process by 25-30% with stream backup-restore process. 
Please read  Fast conversion of Firebird 2.5 databases to Firebird 3.0