Proxmox VE 8, Proxmox Backup Server 3, and Proxmox Mail Gateway 8 all reach end of life on August 31, 2026 — the same day, because all three ride Debian 12's security lifecycle. It is the third time the whole family has retired in lockstep. Every date, the pattern, and the upgrade paths to the 9/4-era.
Lockstep is the policy, not a coincidence
| Generation | Debian base | VE | Backup Server | Mail Gateway | Family EOL |
|---|---|---|---|---|---|
| 8-era | Debian 12 | 8 | 3 | 8 | 2026-08-31 |
| 7-era | Debian 11 | 7 | 2 | 7 | 2024-07-31 |
| 6-era | Debian 10 | 6 | 1* | 6 | 2022-09-30 |
What's covered
- Lockstep is the policy, not a coincidence
- What runs out, and where it bites
- The upgrade order that avoids a bad weekend
Full guide with every version, risk scores, and live updates: https://endoflife.ai/article-proxmox-8-family-eol
