Deco X20 v2

Gone quiet reasonably evidenced

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

366 days since the last release against a median gap of 68 (5.3x)

Last firmware: 28 September 2025 (1 year ago)
Releases seen: 15
Update rhythm: about every 2 months
Support observed: ≥5 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.

Deco X20 v1 (US) Gone quiet 12 releases
Deco X20 v1.2 (US) Slowing down 7 releases
Deco X20 v1.26 (US) Slowing down 3 releases
Deco X20 v1.6 (US) Not enough evidence 2 releases
Deco X20 v2.6 (US) Slowing down 8 releases
Deco X20 v3 (US) Actively updated 14 releases
Deco X20 v3.26 (US) Gone quiet 1 releases
Deco X20 v3.6 (US) Actively updated 13 releases
Deco X20 v4 (US) Slowing down 8 releases
Deco X20 v4.6 (US) Slowing down 6 releases
Deco X20 v5 (US) Not enough evidence 1 releases
Deco X20 v5.6 (US) Not enough evidence 2 releases

Firmware history

Deco X20(US)_V2_1.3.0 Build 20250912 28 September 2025

Release notes — disclosure 0.36

New Features/Enhancement: 1. Supported more parental control functions, including SafeSearch, YouTube Restricted, APP Time Limits, Always Allowed APPs, Offtime, etc. 2. Improved system stability and security.

Archived page, fetched 29 September 2026

Deco X20(US)_V2_1.2.5 Build 20240720 1 August 2024
Release notes — disclosure 0.28
```
New Features/Enhancements: 1. Fixed several security vulnerabilities. 2. Improved system stability.
```
Archived page, fetched 29 September 2026

Deco X20(US)_V2_1.2.4 Build 20231206 3 January 2024

Release notes — disclosure 0.49

New features/Enhancements: 1. Added OFDMA/MU_MIMO switch. 2. Improve system stability and security. Bug Fixes: 1. Fixed the bug that the name of guest network is restored to the default value after it's closed and reopened. 2. Fixed the bug related to client device listing. 3. Fixed the bug related to IPTV.

Archived page, fetched 29 September 2026

Deco X20(US)_V2_1.2.3 Build 20230906 11 September 2023
Release notes — disclosure 0.31
```
Fixed the bug that parental control doesn't take effect.
```
Archived page, fetched 29 September 2026
Deco X20(US)_V2_1.2.1 Build 20230726 8 August 2023
Release notes — disclosure 0.31
```
Fixed the issue of abnormal link on the Ethernet port.
```
Archived page, fetched 29 September 2026

Deco X20(US)_V2_1.2.0 Build 20230612 5 July 2023

Release notes — disclosure 0.60

New Features/Enhancements: 1. Support for customizing Satellite Deco signal source. 2. Support for customizing Clients connection preference. 3. Support for Reboot Schedule. 4. Support for NO-IP and DynDNS. 5. Support for setting Effective Time and Bandwidth Limit for guest network. 6. Added Smart DHCP switch under Access Point mode. 7. Added an alert in the App when the main Deco and modem negotiation speed is only 10/100Mbps. 8. Added the static route function. 9. Added the ability to customize the MTU. 10. Added IOT network function. 11. Added configuration via DS-Lite. 12. Improved system stability.

Archived page, fetched 29 September 2026

Deco X20(US)_V2_1.1.4 Build 20221115 28 December 2022

Release notes — disclosure 0.49

Improvements: 1. Optimized the stability of wireless backhaul. 2. Improved system reliability and security. Bug fixed: 1. Fixed the bug of unavailability of satellite Deco's guest network in a specific network topology. 2. Fixed the bug of low upload speed in some scenes.

Archived page, fetched 29 September 2026

Deco X20(US)_V2_1.1.3_20211103 22 November 2021

Release notes — disclosure 0.36

Modifications and Bug fixes: 1. Fixed the bug that guest network configuration might not take effect when X20 V2 is used with other Deco models. 2. Improved guest network backhaul stability.

Archived page, fetched 29 September 2026

Deco X20(US)_V2_1.1.1_20210723 20 August 2021

Release notes — disclosure 0.50

Modifications and Bug fixes: 1. Improved backhaul stability and 2.4Ghz wireless stability. 2. Fixed the bug that the client list might be empty or incomplete under certain circumstances. 3. Added a feature called "Network Optimization" which could optimize Deco's wireless channel. 4. Add the switch button of Smart DHCP in AP mode.

Archived page, fetched 29 September 2026

Deco X20(US)_V2_1.0.9_210607 8 July 2021
Release notes — disclosure 0.24
```
Modifications and Bug Fixes: 1. Fixed the FragAttacks vulnerabilities.
```
Archived page, fetched 29 September 2026
Deco X20(US)_V2_1.0.6_210424 26 May 2021
Release notes — disclosure 0.28
```
Modifications and Bug Fixes: 1. Improved performance. 2. Improved compatibility and stability.
```
Archived page, fetched 29 September 2026
Deco X20(US)_V2_1.0.5_210330 15 April 2021
Release notes — disclosure 0.35
```
Modifications and Bug Fixes: 1. Added the feature of changing owner account. 2. Improved stability of IPv6 connection.
```
Archived page, fetched 29 September 2026
Deco X20(US)_V2_1.0.3_20210205 3 March 2021
Release notes — disclosure 0.40
```
Bug fixes and Modifications: 1. Supported AI-Roaming feature. 2. Improved wireless stability. 3. Improved mesh stability.
```
Archived page, fetched 29 September 2026
Deco X20(US)_V2_201029 24 November 2020
Release notes — disclosure 0.32
```
Modifications and Bug Fixes: Improved stability on both 2.4GHz and 5GHz connections.
```
Archived page, fetched 29 September 2026

Deco X20(US)_V2_200919 14 October 2020

Release notes — disclosure 0.51

First firmware released. Modifications and Bug fixes: 1. Improved iPhone 11 roaming experience. 2. Allowing manual encryption method selection. 3. Fixed the bug that old password still works after changing Wi-Fi password when using WPA3 encryption.

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 X20

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

Machine-readable: JSON · RSS