a pve-kernel-4.15 meta package depending on a preview build based on Ubuntu Bionic's 4.15 kernel is available on pvetest. it is provided as opt-in package in order to catch potential regressions and hardware incompatibilities early on, and allow testing on a wide range of systems before the default kernel series gets switched over to 4.15 and support for our 4.13 based kernel is phased out at some point in the future. in order to try it out on your test systems, configure the pvetest repository and run Code: apt update apt install pve-kernel-4.15 the pve-kernel-4.15 meta package will keep the preview kernel updated, just like the pve-kernel-4.13 meta package (recently pulled out of the proxmox-ve package) does for the stable 4.13 based kernel. also on pvetest, you will find a pve-headers-4.15 header meta package in case you need them for third-party module building, a linux-tools-4.15 package with compatible perf, as well as an updated pve-firmware package with the latest blobs. notable changes besides the major kernel update include the removal of out-of-tree Intel NIC modules, which are not (yet) compatible with 4.15 kernels. this removal will be re-evaluated at some later point before the final switch to 4.15 as new stable kernel in PVE 5. there are no plans to support both 4.13 and 4.15 in the long term - once the testing phase of 4.15 is over 4.15 will become the new default kernel and 4.13 will receive no updates anymore. happy testing and looking forward to feedback!