Device Support-Lifespan Observatory

What vendors do, not what they announce.

TP-Link

Deco X20 v1.26

Slowing down reasonably evidenced

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

366 days since the last release against a median gap of 366 (1.0x) — but a year without firmware is not active whatever the cadence

Sign in to be emailed when this verdict changes.
Last firmware
28 September 2025 (1 year ago)
Releases seen
3
Update rhythm
about every 1 year
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 X20(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.
  2. Deco X20(US)_V1.26_1.5.3 Build 20231227 4 February 2024

    Release notes — disclosure 0.06
    Fixed some security vulnerabilities.
  3. Deco X20(US)_V1.26_1.5.2 Build 20230908 27 September 2023

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

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 X20

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

Machine-readable: JSON · RSS