fprint_demo v0.4 was released on 22nd November 2007. It adds identification functionality -- scan any enrolled finger and the application will tell you which finger you scanned.
Be aware that libfprint does not guarantee a stable ABI. So, fprint_demo may break if you upgrade libfprint in future without recompiling fprint_demo.
Notable changes in this release
For the full list of changes, see the ChangeLog file in the source distribution
- Add identification functionality