End of life
Sophos Sophos Firewall (XGS/SFOS) · Sophos Firewall OS (SFOS) 15
All published support, including security fixes, has ended. The published end-of-support date was 2018-03-01 — 3119 days ago.
Scope: software releaseAs of 2026-09-15
Lifecycle timeline
- 2017-12-01 — End of active support · End of maintenance
- 2018-03-01 — End of support · End of standard support
Why this status?
“End of active support” (end-of-maintenance, 2017-12-01, confirmed) has passed and no later support phase is published.
Evidence
- Retirement calendar - network products (KBA-000003353) Official · checked 2026-07-15
Keep going
Status derived deterministically from the published milestones. When a vendor does not publish a date, this page says so — it never guesses.