Notes. The second column shows the classification of the detailed brightening behavior of the events: (I) a brightening starts near a footpoint with no obvious loop–loop interaction; (II) a brightening is footpoint triggered but exhibits migration of bright kernels adjacent to the footpoint or brightening of small loops; (III) a brightening occurs along the loop and is often accompanied by vigorous evolution of multiple intersecting or entangled small-scale loops; and (IV) a brightening with bidirectional jets consistent with reconnection outflows. The third to ninth columns list, respectively, the propagation velocity, the brightening time, the intensity decreasing time, the total duration, temporal cadence, the footpoint distance, and the brightening ratio for each event. The brightening ratio is the fraction of the loop length occupied by the brightened segment at its maximum extent.