Device Support-Lifespan Observatory

What vendors do, not what they announce.

TP-Link

Deco X55 v1

Gone quiet well evidenced

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

256 days since the last release against a median gap of 66 (3.9x)

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Last firmware
16 January 2026 (8 months ago)
Releases seen
17
Update rhythm
about every 2 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.

Firmware history

  1. Deco X55(US)_V1_1.8.0 Build 25102213 16 January 2026

    Release notes — disclosure 0.52 
    New Features/Enhancements: 1. Added client traffic statistics and optimized real-time information display, including wireless encryption, bandwidth, and connection duration. 2. Introduced configuration backup and one-click device migration for easier management. 3. Improved 2G networking performance and overall networking experience. 4. Enhanced App experience and optimized AI roaming. 5. Adjusted HomeShield functionality and disabled roaming when only a single Deco unit is in use. 6. Improved overall security and stability.

    Archived page, fetched 29 September 2026

  2. Deco X55(US)_V1_1.6.7 Build 25031412 4 June 2025

    Release notes — disclosure 0.52 
    New Features/Enhancements: Add support for the TSSv2(TP-Link Simple Setup V2) function, which enables the device to quickly discover and pair with TP-Link devices. Bug fixes: 1. Fixed the bugs of frequent client disconnections; 2. Fixed the bug that the client cannot access the Internet when the DoH server fills in the domain name.

    Archived page, fetched 29 September 2026

  3. Deco X55(US)_V1_1.6.1 Build 20241010 21 November 2024

    Release notes — disclosure 0.49 
    New Features/Enhancements: 1. Added Internet Backup feature for internet connection failure backup. 2. Added the DoH/DoT. 3. Enhanced 2.4G internet experience, automatically select different bandwidth based on interference.

    Archived page, fetched 29 September 2026

  4. Deco X55(US)_V1_1.5.5 Build 20240718 5 August 2024

    Release notes — disclosure 0.55 
    New Features/Enhancements: 1. Increased networking number. 2. Supported configure IPv6 during setup. 3. Added the low-power feature. 4. Enhanced the VPN performance. 5. LED schedule feature supported control of individual device LEDs. 6. Enhanced the system security. Bug Fixes: 1. Fixed the bug of incorrect WAN port recognition. 2. Fixed the bug that DNS lost when renewing dialing. 3. Fixed the bug that the client list was not displayed in certain cases.

    Archived page, fetched 29 September 2026

  5. Deco X55(US)_V1_1.5.3 Build 20240531 5 July 2024

    Release notes — disclosure 0.53 
    New Features/Enhancements: 1. Increased networking number; 2. Supported configure IPv6 during setup; 3. Added the low-power feature; 4. Enhanced the VPN performance; 5. LED schedule feature supported control of individual device LEDs; 6. Enhanced the system security. Bug Fixes: 1. Fixed the bug of incorrect WAN port recognition; 2. Fixed the bug that DNS lost when renewing dialing.

    Archived page, fetched 29 September 2026

  6. Deco X55(US)_V1_1.5.1 Build 20240417 8 May 2024

    Release notes — disclosure 0.62 
    New Features/Enhancements: 1. Added wireguard VPN server/client feature. 2. Added client speed limit feature. 3. Added APP QoS feature. 4. Supported third-party VPN. 5. Supported LAN-WAN port fixed feature. 6. Supported for new Kasa/Tapo models. 7. Supported for uploading/downloading openVPN client certificates with customized filenames. 8. Optimized client recognition. 9. Optimized performance of L2TP VPN server. 10. Optimized the process of configuring Tapo/Kasa devices using the matter protocol. 11. The default on time duration of the guest network is modified to permanent. 12. Improved system stability. Bug fixes: 1. Fixed the bug that the IoT network client connection preference feature did not take effect. 2. Fixed the bug that intel AX series wireless adapters roamed abnormally often. 3. Fixed the bug where old client profiles could still connect after deleting and re-enabling OpenVPN Server.

    Archived page, fetched 29 September 2026

  7. Deco X55(US)_V1_1.5.0 Build 20240311 2 April 2024

    Release notes — disclosure 0.62 
    New Features/Enhancements: 1. Added wireguard VPN server/client feature. 2. Added client speed limit feature. 3. Added APP QoS feature. 4. Supported third-party VPN. 5. Supported LAN-WAN port fixed feature. 6. Supported for new Kasa/Tapo models. 7. Supported for uploading/downloading openVPN client certificates with customized filenames. 8. Optimized client recognition. 9. Optimized performance of L2TP VPN server. 10. Optimized the process of configuring Tapo/Kasa devices using the matter protocol. 11. The default on time duration of the guest network is modified to permanent. 12. Improved system stability. Bug fixes: 1. Fixed the bug that the IoT network client connection preference feature did not take effect. 2. Fixed the bug that intel AX series wireless adapters roamed abnormally often. 3. Fixed the bug where old client profiles could still connect after deleting and re-enabling OpenVPN Server.

    Archived page, fetched 29 September 2026

  8. Deco X55(US)_V1_1.4.1 Build 20231122 5 December 2023

    Release notes — disclosure 0.60 
    New Features/Enhancements: 1. Add the module of Eco Mode, Wi-Fi Schedule and Auto Update. 2. Optimize the collaboration with Tapo. 3. Optimize the auto-add process of device after reset. 4. Enhance system security. Bug Fixes: 1. Fix the log-in bug with long account & password of Tapo. 2. Fix the bug with obtainment of 32 bit mask. 3. Fix the bug of abnormal red light by chance. 4. Fix the bug that iOS Deco APP can't manage Deco remotely. 5. Fix the potential security vulnerability and its related problem. 6. Fix some bugs of potential problems related to algorithm.

    Archived page, fetched 29 September 2026

  9. Deco X55(US)_V1_1.3.1 Build 20230824 12 October 2023

    Release notes — disclosure 0.59 
    Modifications and Bug fixes: 1. Added Camera Security feature. 2. Added Wi-fi Access Control feature to support whitelist and black list. 3. Advanced Parental Control subscription added APP block feature, which supports 2000+ applications. 4. HomeShield Security subscription added exception device feature. 5. Supported Portal authentication for Guest Network. 6. Supported detection of Ethernet backhaul link speed. 7. Supported Matter protocol. 8. Optimized the HomeShield features. 9. Optimized client list feature. 10. Optimized network topology stability. NOTE: 1. This firmware can't be downgraded to the previous firmware version.

    Archived page, fetched 29 September 2026

  10. Deco X55(US)_V1_1.3.0 Build 20230719 12 September 2023

    Release notes — disclosure 0.53 
    Modifications and Bug Fixes: 1. Added Camera Security feature. 2. Added Wi-fi Access Control feature to support whitelist and black list. 3. Supported Portal authentication for Guest Network. 4. Supported detection of Ethernet backhaul link speed. 5. Supported Matter. 6. Optimized client list feature. 7. Optimized network topology stability 8. Fixed some bugs.

    Archived page, fetched 29 September 2026

  11. Deco X55(US)_V1_1.2.7 Build 20230620 31 July 2023

    Release notes — disclosure 0.45 
    New Features/Enhancements: 1. Increased the maximum number of smart home device connections to 128. 2. The matter protocol is supported. 3. Improved system stability and reliability.

    Archived page, fetched 29 September 2026

  12. Deco X55(US)_V1_1.2.5 Build 20230511 19 May 2023

    Release notes — disclosure 0.24 
    Modifications and Bug fixes: 1. Improved the HomeShield feature.

    Archived page, fetched 29 September 2026

  13. Deco X55(US)_V1_1.2.2 Build 20230301 31 March 2023

    Release notes — disclosure 0.53 
    New Features/Enhancements: 1. Added SafeSearch function and Youtube Restrict function in the Homeshield. 2. Split Homeshield into "Security" and "Parental Controls". 3. Optimized the Static Route function. 4. Optimized the Homeshield function. 5. Optimized the VPN server/client function. 6. Improved system stability. Bug fixes: 1. Fixed the bug that the App would send client connect notification when satellite Deco was connected to the network.

    Archived page, fetched 29 September 2026

  14. Deco X55(US)_V1_1.2.0 Build 20230113 1 March 2023

    Release notes — disclosure 0.55 
    New features: 1. Added VPN server/client features, including Open VPN, L2TP VPN and PPTP VPN. 2. Added the static route function. 3. Added the ability to customize the MTU. 4. Added IOT network function. Improvements: 1. Optimized the MAC Clone function. 2. Optimized the Client List. 3. Improved system reliability and security.

    Archived page, fetched 29 September 2026

  15. Deco X55(US)_V1_1.1.0 Build 20221102 8 December 2022

    Release notes — disclosure 0.58 
    New features: 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. Support V6Plus and DS-lite connection methods. 7. Added Smart DHCP switch under Access Point mode. 8. Added an alert when the ethernet link speed is abnormal. Improvements: 1. Improved system reliability and security.

    Archived page, fetched 29 September 2026

  16. Deco X55(US)_V1_1.0.8_20220407 18 May 2022

    Release notes — disclosure 0.45 
    Modifications and Bug fixes: 1. Fixed the bug that wired clients online status are not displayed correctly in Deco app. 2. Improved HomeShield feature. 3. Improved overall stability.

    Archived page, fetched 29 September 2026

  17. Deco X55(US)_V1_1.0.6_20211224 14 February 2022

    Release notes — disclosure 0.28 
    Modifications and Bug fixes: 1. Improved overall performance. 2. Improved overall stability.

    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 X55

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

Machine-readable: JSON · RSS