We are pleased to announce that the release of Proxmox Backup Server 2.4 is now available. Proxmox Backup Server is a reliable and user-friendly enterprise backup solution for your virtual machines and containers on Proxmox VE. The software backs up data incrementally and with deduplication, so that storage requirements remain low even with daily backups.
New Features in Version 2.4
The latest version of Proxmox Backup Server offers many new features and improvements:
Dark Theme for the Web Interface
Proxmox Backup Server now supports a dark interface design. The dark theme reduces eye strain during longer work sessions — especially in darkened server rooms or when working in the evening. The theme can be activated with a single click in the user settings and adjusts the entire web interface accordingly.
LDAP as User Authentication
With version 2.4, administrators can now integrate LDAP directory services such as Microsoft Active Directory or OpenLDAP as authentication sources. This eliminates the need for separate user management on the backup server. Existing corporate accounts can be used directly, which simplifies administration and enhances security through centralized password policies. Permissions can be assigned granularly via roles and paths.
Support for WORM Tapes
An important new feature for long-term archiving: Proxmox Backup Server 2.4 now supports WORM tapes (Write Once, Read Many). With this tape type, data can be written once but can no longer be overwritten or deleted afterward. This property is particularly relevant for companies that need to comply with legal retention periods or require effective protection against ransomware attacks on their backup archives. The WORM functionality complements the existing tape backup support and can be configured via the web interface.
Improved Integration with Proxmox Virtual Environment
The collaboration between Proxmox Backup Server and Proxmox VE has been further optimized. Backup jobs can be configured and monitored even more conveniently directly from the PVE interface. Status messages and recovery options are now more transparently accessible, enabling faster response in emergencies. Namespace support has also been improved, allowing backups from different clusters or tenants to be stored separately on a shared backup server.
Additional Improvements
In addition to the main features, version 2.4 contains numerous smaller improvements under the hood:
- Updated base: Based on Debian 11.6 Bullseye with Kernel 5.15 LTS for maximum stability and hardware compatibility.
- Performance optimizations: Improved garbage collection and faster verification of backup data.
- Extended notifications: More detailed email notifications for backup errors, sync jobs, and tape operations.
Conclusion
With Proxmox Backup Server 2.4, you can back up and restore your data more easily and securely. The WORM tape support and LDAP integration in particular make this version attractive for professional enterprise use. We recommend updating existing installations promptly to benefit from the security and performance improvements.
Further information can be found on our website or on the roadmap page from Proxmox.
DATAZONE supports you with implementation — contact us for a no-obligation consultation.
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