Enhancement, Windows only: Replace the XP-compatible File Open / File Save Dialog implementation, which is used by MX_GETOFD and various other internal functions, with a more modern implementation. The application interface is the same except that a new MX_GETOFD flags option is defined:

Also, the OFN_EXPLORER option is now essentially meaningless—i.e., it is always on.

The user interface is also virtually the same. The main difference is in the internal plumbling, which might work better with newer Windows versions, and might support additional new features in the future.