Hi,
thanks for using PGDBF :)
Unfortunately we can't directly update the package that is currently in Ubuntu - this is done by their or Debian's package maintainer. They generally pick a version for an Ubuntu release and then stick to it, only applying security fixes.
You might be able to just download and install that package on Ubuntu, as PGDBF doesn't depend on anything except libc, but I never tried.
For now, the easiest way is probably to just compile and install it yourself using "make install", as you did.
Philipp