Device Support-Lifespan Observatory

What vendors do, not what they announce.

TP-Link

Deco M4R v1

Gone quiet well evidenced

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

1336 days since the last release against a median gap of 118 (11.3x)

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Last firmware
1 February 2023 (4 years ago)
Releases seen
11
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 M4R(US)_V1_1.5.6 Build 20221229 1 February 2023

    Release notes — disclosure 0.42 
    Modifications and Bug Fixes: 1. Newly added ECO Mode (includes Power Mode, Wi-Fi Schedule, and LED Control) to save energy. 2. Fixed some minor bugs.

    Archived page, fetched 29 September 2026

  2. Deco M4R(US)_V1_1.5.5 Build 20220823 15 September 2022

    Release notes — disclosure 0.32 
    Modifications and Bug Fixes: Optimized total performance and fixed some minor bugs.

    Archived page, fetched 29 September 2026

  3. Deco M4R(US)_V1_1.5.4_220113 14 February 2022

    Release notes — disclosure 0.41 
    Modifications and Bug Fixes: 1. Fixed the bug that Deco loses Internet connection under some ISP lines. 2. Improved system reliability.

    Archived page, fetched 29 September 2026

  4. Deco M4R(US)_V1_1.5.2_20210916 9 November 2021

    Release notes — disclosure 0.52 
    Modifications and Bug Fixes: 1.Fixed the issue that Port Forwarding doesn't take effect in some cases. 2.Optimized the problem that Kasa devices can't be added through Deco APP in some cases. 3.Fixed the problem that Zoom applications are banned by the Pay-to-Surf category under Parental Control. 4.Fixed some other bugs and optimized the overall performance.

    Archived page, fetched 29 September 2026

  5. Deco M4R(US)_V1_200918 29 September 2020

    Release notes — disclosure 0.43 
    Modifications and Bug Fixes: 1. Fixed the Wi-Fi encryption type as WPA2-PSK [AES] to ensure the security of the Wi-Fi connection. 2. Added the option to change the Wi-Fi encryption type.

    Archived page, fetched 29 September 2026

  6. Deco M4R(US)_V1_20200727 12 August 2020

    Release notes — disclosure 0.06 
    Modifications and Bug Fixes: Enhanced total security.

    Archived page, fetched 29 September 2026

  7. Deco M4R(US)_V1_200628 15 July 2020

    Release notes — disclosure 0.48 
    Modifications and Bug Fixes: 1. Added switch for the UPnP function. 2. Add Google Assistant support. 3. Added isolation switch for the main network and guest network in Access Point mode. 4. Improved performance and stability.

    Archived page, fetched 29 September 2026

  8. Deco M4R(US)_V1_190620 23 July 2019

    Release notes — disclosure 0.61 
    Modifications and Bug Fixes: 1. Added individual switches on both 2.4G and 5G networks. 2. Added WPS feature. 3. Added custom configuration options for LAN IP and DHCP server. 4. Displayed which client is connected to which deco and which band. 5. Displayed how Decos are connected to each other. 6. Added switch for the beamforming feature, SIP ALG feature and mesh technology. 7. Added support for IPTV and MAC Clone. 8. Added Privilege options for manager accounts. 9. Added IPv6 firewall rules feature. 10. Added support for the guest network in AP mode

    Archived page, fetched 29 September 2026

  9. Deco M4R(US)_V1_181203 23 July 2019

    Release notes — disclosure 0.06 
    Bug Fixes and Modifications: Optimized system performance.

    Archived page, fetched 29 September 2026

  10. Deco M4R(US)_V1_181116 10 December 2018

    Release notes — disclosure 0.30 
    First firmware release.

    Archived page, fetched 29 September 2026

  11. Deco M4R(US)_V1_181023 9 November 2018

    Release notes — disclosure 0.30 
    First firmware released.

    Archived page, fetched 29 September 2026

Evidence

2 archived pages sit behind this record, the earliest read on 1 August 2026. Everything above was read from them, and each is kept byte for byte so it can be checked after the vendor edits the original.

Identifiers: marketing_name Deco M4R · openwrt_id tplink_deco-m4r-v1

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

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