The English version of the Migration Guide to Firebird 4 (by Carlos H. Cantu) eBook (PDF) is now available to developers and administrators who want to save time and have a smoother migration from an older Firebird version to Firebird 4.

The Guide has 206 pages and covers several topics like Time zones, Read Committed Read Consistency isolation, Replication, Decfloat, etc. A printed version will be made available on Amazon in the near future. Initially available only in Portuguese, it is the result of a successful crowdfunding campaign in Brazil, with the participation of +300 people.