Visual Prolog 7.2 Upgrade Notes
Upgrading Projects from Visual Prolog 7.1 to Visual Prolog 7.2
By default, the installation of Visual Prolog 7.2 will not replace any previously installed versions.
The new version will be installed by default to C:\Program Files\Visual Prolog 7.2. You can remove previous versions at any time, or you may continue to work with both.
Visual Prolog 7.2 projects are backward-compatible with Visual Prolog 7.1 projects.
If you are going to use different versions of Visual Prolog installed at one computer, avoid opening projects by double-clicking on prj6 files.
Some changes might require automatic updates in Visual Prolog 7.1 projects. Therefore, it is recommended to make the project file (PRJ6) writable before the first build.
After you open your project in the Visual Prolog 7.2 IDE, the IDE will automatically perform any necessary updates.
After this, it is recommended you rebuild the project with the help of the Build | Rebuild All command and answer "Yes to All" to the message "The new module is required to be added into the project".
Upgrading Projects from Visual Prolog 7.0 and Visual Prolog 6.x to Visual Prolog 7.2
Depending on Visual Prolog version, you are upgrading your projects from, some additional actions might be required. See the following web pages for details:
Upgrading Projects from Visual Prolog 5.x
Prolog Development Center provides the Migration Tool that will assist you to migrate your Visual Prolog 5.x projects into Visual Prolog 6.x projects.
After migrating your projects into Visual Prolog 6.x, follow the recommendations above to upgrade your projects into the latest version of Visual Prolog.