Proxmox Backup Server 4.0 has been officially released and is now available for download. This version is built on Debian 13 "Trixie" and utilizes the newer Linux kernel 6.14.8-2 as its stable default. The update introduces several significant features including S3-compatible object stores for backup storage, ZFS 2.3 with RAID-Z expansion, and the ability to automatically trigger sync jobs when a removable datastore is mounted.
The release emphasizes the hard work of the Proxmox team and the valuable feedback received from community members during the beta testing phase. In addition to these new features, the update includes numerous performance enhancements and bug fixes to improve user experience.
For users looking to upgrade, Proxmox Backup Server 4.0 can be installed via apt, including from previous versions such as 3. The support for Proxmox Backup Server 3.4 will continue until August 2026, allowing users time to transition smoothly to the new release.
The Proxmox Backup Server integrates seamlessly with Proxmox Virtual Environment (VE) by adding it as a new storage target. Compatibility testing is ongoing to ensure that backups can be safely performed across various Proxmox VE versions.
Users interested in installation or hardware recommendations can find guidance in the documentation, which suggests enterprise-grade server components for optimal performance. Proxmox Backup Server can be installed on Debian or Ubuntu, though the recommended setup is standalone for optimal results.
For further details on features, support, and installation, users can refer to the official Proxmox website and associated resources.
In summary, Proxmox Backup Server 4.0 represents a significant advancement in backup solutions, enhancing compatibility, performance, and user experience while providing a clear upgrade path for existing users. The community's involvement has been a crucial element in achieving this milestone, and ongoing support will ensure users can make the most of the new features
The release emphasizes the hard work of the Proxmox team and the valuable feedback received from community members during the beta testing phase. In addition to these new features, the update includes numerous performance enhancements and bug fixes to improve user experience.
For users looking to upgrade, Proxmox Backup Server 4.0 can be installed via apt, including from previous versions such as 3. The support for Proxmox Backup Server 3.4 will continue until August 2026, allowing users time to transition smoothly to the new release.
The Proxmox Backup Server integrates seamlessly with Proxmox Virtual Environment (VE) by adding it as a new storage target. Compatibility testing is ongoing to ensure that backups can be safely performed across various Proxmox VE versions.
Users interested in installation or hardware recommendations can find guidance in the documentation, which suggests enterprise-grade server components for optimal performance. Proxmox Backup Server can be installed on Debian or Ubuntu, though the recommended setup is standalone for optimal results.
For further details on features, support, and installation, users can refer to the official Proxmox website and associated resources.
In summary, Proxmox Backup Server 4.0 represents a significant advancement in backup solutions, enhancing compatibility, performance, and user experience while providing a clear upgrade path for existing users. The community's involvement has been a crucial element in achieving this milestone, and ongoing support will ensure users can make the most of the new features
Proxmox Backup Server 4.0 released
Proxmox Backup Server 4.0 is now available for download, based on Debian 13 "Trixie" and using a newer Linux kernel, 6.14.8-2, as the stable default. The new version includes S3-compatible object stores as backup storage backend, ZFS 2.3 with RAID-Z expansion, and automatic sync job triggers when a removable datastore is mounted.
