Supported
SonicWall SonicOS Firewalls · SonicOS 6.5.5.1 (Active General Release)
Inside the published support window.
Scope: software releaseAs of 2026-08-01
Lifecycle timeline
No lifecycle milestone is published for this exact scope. Nothing is guessed.
Why this status?
Release date 2025-07-01. Models: SOHOW, SOHO 250(W), TZ300-TZ600 series.
Evidence
- SonicWall Product Life Cycle Tables (portal) Official · checked 2026-07-15
- SonicWall Product Life Cycle Tables - TZ Series - Firmware (SonicOS) Official · checked 2026-07-15
- SonicWall Product Life Cycle Tables - Secure Mobile Access 1000 Series - Software Official · checked 2026-07-15
- SMA100 End of Support No-Charge Replacement FAQ Official · checked 2026-07-15
- GMS End of Life and NSM Transition FAQ Official · checked 2026-07-15
- SonicWall Email Security Limited Retirement Mode Announcement 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.