Deco X20 v2.6
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 189 (1.9x)
- Last firmware
- 28 September 2025 (1 year ago)
- Releases seen
- 8
- Update rhythm
- about every 6 months
- Support observed
- ≥4 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 (US) Gone quiet 15 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
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Deco X20(US)_V2.6_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
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Deco X20(US)_V2.6_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
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Deco X20(US)_V2.6_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
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Deco X20(US)_V2.6_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
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Deco X20(US)_V2.6_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
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Deco X20(US)_V2.6_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
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Deco X20(US)_V2.6_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
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Deco X20(US)_V2.6_1.1.1_20210723 20 August 2021
Release notes — disclosure 0.47
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.
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.