Device Support-Lifespan Observatory

What vendors do, not what they announce.

TP-Link

TL-WR940N v5

Gone quiet well evidenced

no firmware for long enough to stand out against its own record

1404 days since the last release against a median gap of 328 (4.3x)

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Last firmware
25 November 2022 (4 years ago)
Releases seen
6
Update rhythm
about every 11 months
Support observed
≥6 years
Vendor's promise
no support period we can evaluate
Patch latency
not measurable — its changelogs name no CVE ids

Which one do I have?

TP-Link ships this model in more than one hardware revision, and they do not share firmware. The revision is printed on the label on the underside, usually after the model — Ver 1.0, V4.6. Getting it wrong is the easiest way to read the wrong answer here.

Firmware history

  1. TL-WR940N(US)_V5_3.20.1 Build 220801 25 November 2022

    Release notes — disclosure 0.55
    Modifications and Bug Fixes: 1. Improve device security; 2. Update the ISP IPTV profile; 3. Fixed the bug that when the PPPoEv6 was enabled, then the device IPv4 could not obtain IP and the button can't use after the prototype was restarted; 4. Fixed the bug that the field carried by PPPoE dial-up lacks the service name, resulting in dial-up failure.
  2. TL-WR940N(US)_V5_220610 10 June 2022

    Release notes — disclosure 0.31
    Release note: Modifications and Bug Fixes: Enhance device security.
  3. TL-WR940N(US)_V5_211111 17 January 2022

    Release notes — disclosure 0.42
    Modifications and Bug Fixes: 1. Optimized the wireless stability on RE/WISP/Client mode. 2. Enhance wireless stability. 3. Fixed the bug that when you choose the NO-IP of the DDNS, the logout button can't take affect.
  4. TL-WR940N(US)_V5_200316 26 April 2020

    Cites CVE-2020-8597

    Release notes — disclosure 0.84
    New Features/Enhancement: 1. Optimized the wireless stability on RE mode. 2. Added the support for https. 3. Added support for reboot schedule. 4. Optimized the security and change the login mode. Bug Fixes: 1. Fixed CVE-2020-8597. 2. Fixed CVE-2020-8423_84_V10.
  5. TL-WR940N(US)_V5_170912 12 September 2017

    Release notes — disclosure 0.43
    Modifications and Bug Fixes: New Features/Enhancement: 1. Improved the system's security. 2. Added ISP config IPTV. Bug Fixes: Fixed the bug about IPv6.
  6. TL-WR940N(US)_V5_161019 19 October 2016

    Release notes — disclosure 0.06
    Modifications and Bug Fixes: First firmware released.

Evidence

One archived page sits behind this record, the earliest read on 1 August 2026. Everything above was read from it, and each is kept byte for byte so it can be checked after the vendor edits the original.

Identifiers: marketing_name TL-WR940N

Judged by lifecycle-1 on 29 September 2026. How these verdicts are computed.

Machine-readable: JSON · RSS