Proxmox has released Version 3.4 of it’s Backup Server Solution:

Some of the highlights

  • Optimized performance for Garbage Collection
  • Granular backup snapshot selection for sync jobs
  • Easier backups of arbitrary Linux hosts with new static build of CLI client
  • Increased throughput for tape backup
  • Based on Debian 12.10 (“Bookworm”) but using Linux kernel 6.8.12-9 as stable default and kernel 6.14 as opt-in
  • ZFS 2.2.7 with compatibility patches for Kernel 6.14

Read the complete announcement here!