Device Support-Lifespan Observatory

What vendors do, not what they announce.

TP-Link

Deco W3600 v1.26

Slowing down well evidenced

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

366 days since the last release against a median gap of 310 (1.2x) — but a year without firmware is not active whatever the cadence

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Last firmware
28 September 2025 (1 year ago)
Releases seen
5
Update rhythm
about every 10 months
Support observed
≥3 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 W3600(US)_V1.26_1.6.1 Build 20250910 28 September 2025

    Release notes — disclosure 0.52 
    New Features/Enhancement: 1. Supported more parental control functions, including SafeSearch, YouTube Restricted, APP Time Limits, Always Allowed APPs, Offtime, etc. 2. Enhanced Web Filter, enriched visited/block history and optimized Blocked APPs for parental control. 3. Enhanced security functions of device. 4. Optimized QoS.

    Archived page, fetched 29 September 2026

  2. Deco W3600(US)_V1.26_1.5.3 Build 20231227 21 February 2024

    Release notes — disclosure 0.06 
    Improvements: Enhanced the security of device.

    Archived page, fetched 29 September 2026

  3. Deco W3600(US)_V1.26_1.5.2 Build 20230908 27 September 2023

    Release notes — disclosure 0.06 
    Modifications and Bug Fixes: Optimized Parental Control feature.

    Archived page, fetched 29 September 2026

  4. Deco W3600(US)_V1.26_201013 10 June 2022

    Release notes — disclosure 0.53 
    Modifications and Bug Fixes: 1. Added the option to change the Wi-Fi encryption type. 2. Optimized the QoS feature. 3. Fixed the bug that iphone might lose internet connection intermittently. 4. Fixed the bug that the Mail service cannot connect to IMAP Servers correctly on Mac OS.

    Archived page, fetched 29 September 2026

  5. Deco W3600(US)_V1.26_1.5.1_20210204 10 June 2022

    Release notes — disclosure 0.59 
    Modifications and Bug fixes: 1. Added "allow ping on WAN" switch in Deco app. 2. Added "service name" and "access name" options when using PPPoE WAN connection. 3. Added Network Optimization feature. 4. Added owner account transfer feature. 5. Supported manually selecting IPTV port on satellite Deco. 6. Supported manually adding sites into Antivirus white list. 7. Added UPNP switch in Deco app. 8. Added guest network isolation switch in Access Point Mode. 9. Fixed the Bug that clients might not be able to get IP addresses when there are several address reservation entries in Deco app.

    Archived page, fetched 29 September 2026

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 W3600

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

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