QNAP QTS end of life: end of support by version
QNAP · NAS & Storage
For QNAP QTS by QNAP, patchletter knows 5 support cycles. 4 of them have already ended and receive no more security updates. The next support window closes on 31/08/2029, that is in 1090 days. The current version of QNAP QTS is 5.2.10.3577. The cycles come from the open endoflife.date project, last reconciled on 04/09/2026.
When does support end for which QNAP QTS version?
A cycle is a maintained version line. Where a date is given, support ends on that day — after it the vendor ships no more security updates for that line.
| Cycle | Latest version | End of support | Status |
|---|---|---|---|
| 5.2 (LTS)LTS | 5.2.10.3577 | 1090 days left | EOL 31 Aug 29 |
| 4.4.1 | – | 1406 days ago | End of Life |
| 4.3.6 | – | 1406 days ago | End of Life |
| 4.3.3 | – | 1406 days ago | End of Life |
| 4.2.6 | – | 1406 days ago | End of Life |
Which QNAP QTS versions no longer receive security updates?
4 of 5 cycles have ended. If you run one of those lines, the vendor ships you no more patches — not even for critical flaws.
- QNAP QTS 4.4.1
- QNAP QTS 4.3.6
- QNAP QTS 4.3.3
- QNAP QTS 4.2.6
Where does the EOL data for QNAP QTS come from?
From the open endoflife.date project, which collects vendors' official support commitments. patchletter reconciles the cycles daily; the QNAP QTS data is as of 04/09/2026. In case of doubt the vendor's own lifecycle page applies — patchletter deliberately stores no vendor full texts.
Do not miss the QNAP QTS end of support
Subscribe to the product and patchletter will report new releases by email. You pay nothing for them, and one click stops them again. The EOL status sits right on the product page.
Watch QNAP QTS