SHA256SUMS for the ISO:
d01d2cb3cac56ea2ebf0ed590db1199e44d8fd21b090d1b576e740abfa5e8d65
Release notes
15. April 2021: Proxmox Backup Server 1.1 ISO Installer (1st ISO release)
11. November 2020: Proxmox Backup Server 1.0 ISO Installer (1st ISO release)
5. October 2020: Proxmox Backup Server beta ISO Installer (2nd ISO release)
10. July 2020: Proxmox Backup Server beta ISO Installer (1st ISO release)
Note: Please always update a new ISO install to the latest available packages via GUI updater or via CLI (apt update && apt dist-upgrade)