On Windows, this can be used to specify a version number for a library. This version number will be used when the library is installed, and can be viewed in the Windows Explorer by opening the property sheet of the DLL and looking on the tab ’Version’. The version number contains 1, 2 or 3 integers, separated by a dot:
{$VERSION 1}
Or:
{$VERSION 1.1}
And even:
{$VERSION 1.1.1}
This cannot yet be used for executables on Windows, but may be activated in the future.