We just selected a programmer from Australia who will do the coding for Goldenseal Pro. Whoo hoo! As it turns out, waiting a few months was a good thing, since we were able to choose among several very qualified candidates.
For the Pro conversion we will use the QT framework, which will update both the Macintosh and Windows versions, at the same time. QT is a popular, open-source framework that should make it easier for us to stay current with future OS improvements. We probably will also use it for future mobile apps, since it supports both iOS and Android.
The best guess at arrival time is 2 to 3 months. The current upgrade options for existing users will be available until shortly before the release.