Device Support-Lifespan Observatory

What vendors do, not what they announce.

TP-Link

Deco W3600 v4.6

Slowing down reasonably evidenced

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

239 days since the last release against a median gap of 122 (2.0x)

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Last firmware
2 February 2026 (8 months ago)
Releases seen
9
Update rhythm
about every 4 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 W3600(US)_V4.6_1.7.1 Build 25080612 2 February 2026

    Release notes — disclosure 0.56 
    New Features/Enhancements: 1. Added Internet Backup functionality to automatically switch to a backup network when the primary network fails. 2. Added support for DoH (DNS over HTTPS) and DoT (DNS over TLS). 3. Introduced VPN Kill Switch to secure connections during VPN disruptions. 4. Optimized 2.4GHz mesh networking. Bug Fixes: 1. Fixed an issue where DS-Lite or v6plus dial-up could fail during configuration in certain scenarios. 2. Fixed an issue where MRU did not take effect after PPPoE negotiation.

    Archived page, fetched 29 September 2026

  2. Deco W3600(US)_V4.6_1.5.5 Build 20240718 15 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

  3. Deco W3600(US)_V4.6_1.2.0 Build 20231221 25 January 2024

    Release notes — disclosure 0.57 
    New Features/Enhancements: 1. The default Wi-Fi will be encrypted. 2. Added Camera Security, Wi-Fi Access Control feature. 3. Advanced Parental Control subscription added APP block feature. 4. Supported Portal authentication for Guest Network. 5. Supported Matter protocol. 6. Add the module of Eco Mode, Wi-Fi Schedule and Auto Update. 7. Optimize the collaboration with Tapo. 8. Improved system stability. Bug fixes: 1. Fixed several security vulnerabilities that were exposed at hackathons. 2. Fixed compatibility issue with Intel AX series wireless network adapters.

    Archived page, fetched 29 September 2026

  4. Deco W3600(US)_V4.6_1.1.1 Build 20230721 28 August 2023

    Release notes — disclosure 0.41 
    Modifications and Bug Fixes: 1. Default Wi-Fi "Deco_xxxx" is no longer allowed to connect to the Internet. 2. Fixed some bugs.

    Archived page, fetched 29 September 2026

  5. Deco W3600(US)_V4.6_1.1.0 Build 20230517 26 May 2023

    Release notes — disclosure 0.64 
    New features: 1. Supported for customizing Satellite Deco signal source. 2. Supported for customizing Clients connection preference. 3. Supported for Reboot Schedule. 4. Supported for NO-IP and DynDNS. 5. Added Smart DHCP switch under Access Point mode. 6. Added the static route function. 7. Added the ability to customize the MTU. 8. Added IoT network function. 9. Added VPN server/client features, including Open VPN, L2TP VPN and PPTP VPN. 10. Added SafeSearch function and Youtube Restrict function in the Homeshield. Improvements: 1. Optimized the Monthly Reports function. 2. Optimized the Clients List function. 3. Optimized the HomeShield feature, please update your Deco app (iOS version 3.3.55 or above, Android version 3.3.65 or above) to fully utilize it.

    Archived page, fetched 29 September 2026

  6. Deco W3600(US)_V4.6_1.0.5 Build 20230325 5 May 2023

    Release notes — disclosure 0.34 
    New Features/Enhancements: 1. Optimized the Homeshield. 2. Improved system stability.

    Archived page, fetched 29 September 2026

  7. Deco W3600(US)_V4.6_1.0.4 Build 20230303 13 April 2023

    Release notes — disclosure 0.57 
    New Features/Enhancements: 1. Optimized web protection function. 2. Optimized Ethernet backhaul function. 3. Optimized the network optimization function. 4. Optimized the client list function. 5. Optimized compatibility between Deco and some Samsung devices. 6. Improved system stability. Bug fixes: 1. Fixed the bug that Deco App still pushes weekly/monthly reports in AP mode. 2. Fix the bug that IPTV does not work properly under some ISP lines. 3. Fixed the bug that ISP does not assign IP address to Deco under some ISP lines. 4. Fix the bug that address reservation does not take effect in some cases.

    Archived page, fetched 29 September 2026

  8. Deco W3600(US)_V4.6_220412 10 June 2022

    Release notes — disclosure 0.49 
    Modifications and Bug Fixes: 1. Optimized the user experience of HomeShield. 2. Optimized the Client List module. 3. Improved system reliability.

    Archived page, fetched 29 September 2026

  9. Deco W3600(US)_V4.6_1.0.0_220106 10 June 2022

    Release notes — disclosure 0.30 
    First firmware released.

    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.

Machine-readable: JSON · RSS