Subject Re: [firebird-support] nbackup : Error assessing database due a missing delta file
Author Jesus Garcia

Always use the latest release. For 2.5 it is 2.5.7. But even with this it is not
guaranteed to work. Check list of nbackup-related bugs in tracker:

I only see three items pending, but anyway, why not remove Nbackup from firebird until it is safe to use?

Why is there a tool that cannot be used in a safe way?