End of life
WatchGuard Firebox / Fireware · Firebox M300
All published support, including security fixes, has ended. The published end-of-support date was 2023-06-30 — 1127 days ago.
Scope: software releaseAs of 2026-08-01
Lifecycle timeline
- 2020-04-01 — End of active support · End of maintenance
- 2023-06-30 — End of support · End of standard support
Why this status?
End-of-Sale 01 Apr 2020; migration path: Contact Sales.
Firebox / Fireware releases still inside the support window
- Firebox T15 — support ends 2027-03-01
- Firebox T15-W — support ends 2027-03-01
- Firebox T20 — support ends 2028-07-01
- Firebox T20-W — support ends 2028-07-01
Reported as still supported by the cited source. WatchGuard documents the upgrade path for your edition and contract — confirm there before planning change work.
Evidence
- WatchGuard End-of-Life Policy Official · checked 2026-07-15
- Endpoint Security Support for Legacy OS Extended Again (Through June 30, 2026) Official · checked 2026-07-15
- Understanding Your Firebox Management Options (WatchGuard blog) Official · checked 2026-07-15
- Fireware Version Compatibility (Help Center) 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.