A horizontally elongated rail is adapted to be mounted with respect to a door opening, and a door assembly is slideably mounted on the rail and is slideable along a generally vertical imaginary plane. The door assembly includes an upper section cooperating with the rail to provide for the slideable mounting of the door assembly on the rail, and a lower section pivotably attached to the upper section at an attached end thereof so as to be pivotable with respect to the upper section about a generally vertical axis from a closed position, in which the upper section and the lower section are generally co-planar, to an open position. A safety release has an engaged position, in which the lower section and the upper section are fixed in the closed position, and a disengaged position, in which the lower section is pivotable to the open position.