Device Support-Lifespan Observatory

What vendors do, not what they announce.

TP-Link

Deco S4 v3.6

Slowing down reasonably evidenced

updates are coming less often than this product's own history

684 days since the last release against a median gap of 364 (1.9x)

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Last firmware
14 November 2024 (2 years ago)
Releases seen
3
Update rhythm
about every 12 months
Support observed
≥2 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. Deco S4(US)_V3.6_1.5.2 Build 20240927 14 November 2024

    Release notes — disclosure 0.60
    New features: 1. Support for customizing Satellite Deco's and Clients' signal sources. 2. Support for Reboot Schedule. 3. Support for NO-IP and DynDNS. 4. Support for WPA3. 5. Support for setting Effective Time and Bandwidth Limit for guest network. 6. Support setting up client isolation. 7. Added Smart DHCP switch under Access Point mode. 8. Added connection type of V6 Plus. 9. Added the static route function. 10. Added the ability to customize the MTU. 11. Added IOT network function.
  2. Deco S4(US)_V3.6_1.4.1 Build 20230324 23 April 2023

    Release notes — disclosure 0.41
    New Features/Enhancements: 1. Optimized the Client List. 2. Improved system stability. Bug fixes: 1. Fixed the bug that other models of Deco cannot be added as satellite Deco in some scenes.
  3. Deco S4(US)_V3.6_1.3.3 Build 20221107 17 November 2022

    Release notes — disclosure 0.53
    Improvements: 1. Optimized the network optimization function. 2. Optimized the establishment of Ethernet Backhaul feature. Bug fixed: 1. Fixed the bug that Deco couldn't get the IP address in some cases. 2. Fixed the bug that the Client List will be empty in some case. 3. Fixed the bug of not being able to log in to the Deco App in some cases.

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 Deco S4

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

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