Add hidden-xs-min-* classes for Boostrap 4 https://github.com/twbs/bootstrap/blob/v4-dev/dist/css/bootstrap.css

bootstrap-grid-hidden-xs-min.less

@media (min-width: @screen-xs-min) {
    .hidden-xs-min-up {
        display: none !important;
    }
}
@screen-xs-min-max: @screen-xs-min - 1;
@media (max-width: @screen-xs-min-max) {
    .hidden-xs-min-down {
        display: none !important;
    }
}