After the last kernel upgrade has been completed without problems and the kernel 5.4.3 has solved some performance problems, we will update all vServer nodes to this version or a kernel version that was newer by then. We assume that the performance of the vServer nodes can be increased significantly, especially with regard to I / O management. On December 31, 2019, we will therefore update the vServer nodes v21, v26, v28, v31, v32 from 10:00 a.m. We only expect a short downtime in the course of the node restart, but define the total maintenance window as 2 hours.