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Proxmox Backup Server

Proxmox Backup Server

Server App

Proxmox Backup Server 4 is the newest actively maintained release, currently at patch 4.2. 1 of 4 tracked cycles remain supported.

Latest version

4.2

Apr 29, 2026

Actively maintained cycles

1

of 4 tracked

Total cycles tracked

4

since Nov 11, 2020

Support pattern

How Proxmox Backup Server has behaved across the cycles tracked here, rather than what its policy documents state. Useful for judging how much runway a version is likely to have before you commit to it.

Typical support window

37 mo (~3 years)

median of 3 completed cycles

New cycle roughly every

23 months

median gap between releases

Compared with server app

+22 mo

longer than the server app median

Computed from release and end-of-life dates tracked for Proxmox Backup Server. Medians are used rather than averages so one unusually short or long release does not skew the figure. Cycles with no recorded end-of-life date are excluded from the support window.

Release lifecycle

Actively maintainedSecurity support onlyEnd of life
Today
4Latest
4.2 · Apr 29, 2026
3
EOL Aug 31, 2026
2
EOL Jul 31, 2024
1
EOL Sep 30, 2022
202120222023202420252026

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