Device Support-Lifespan Observatory

What vendors do, not what they announce.

TP-Link

TL-SG105E v4

Gone quiet reasonably evidenced

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

2860 days since the last release against a median gap of 106 (27.0x)

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Last firmware
30 November 2018 (8 years ago)
Releases seen
3
Update rhythm
about every 3 months
Support observed
≥7 months
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. TL-SG105E(UN)_V4_20181120 30 November 2018

    Release notes — disclosure 0.35
    New Features/Enhancement: 1.Add DHCP Fallback mechanism. 2.Save configuration automatically when click apply. 3.Loop Prevention, IGMP Snooping, 802.1p /DSCP QoS functions are enabled by default.
  2. TL-SG105E(UN)_V4_20180306 2 May 2018

    Release notes — disclosure 0.32
    Bug Fixes: Fix the problem of being unable to log in with a password that starts with bt.
  3. TL-SG105E(UN)_V4_20171228 2 May 2018

    Release notes — disclosure 0.30
    First Firmware released.

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 TL-SG105E

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

Machine-readable: JSON · RSS