Streamlining version updates

For a program update that doesn’t materially change the user interface,
it would be nice to have an installation option for retaining and
maintaining the current configuration, thus avoiding having to answer a
bunch of questions all over again.

(Your separate download for PDF
Architect gives version 0.5.5, while the version that installs with
PDFCreator is  Assuming this higher numbered version is the
more recent one, I would have expected the separate download to provide
this latest version.)