On Windows, the mode bits reported by os.Lstat and os.Stat for reparse points changed. Mount points no longer have os.ModeSymlink set, and reparse points that are not symlinks, Unix sockets, or dedup files now always have os.ModeIrregular set. This behavior is controlled by the winsymlink setting. For Go 1.23, it defaults to winsymlink=1. Previous versions default to winsymlink=0.