Tapo C400 v1.6
Gone quiet thin evidence
no firmware for long enough to stand out against its own record
1257 days of silence, past the 730-day floor that applies where there is no cadence to compare against
- Last firmware
- 21 April 2023 (3 years ago)
- Releases seen
- 2
- Update rhythm
- too few releases to model
- Support observed
- ≥2 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.
- Tapo C400 v1 (US) Gone quiet 4 releases
- Tapo C400 v2.6 (US) Actively updated 6 releases
Firmware history
-
Tapo C400(US)_V1.6_1.0.12 Build 20230330 21 April 2023
Release notes — disclosure 0.35
Modifications and Bug Fixes: 1. Enhance the stability of the camera. 2. Fix some minor bugs.
Archived page, fetched 29 September 2026
-
Tapo C400(US)_V1.6_1.0.10 Build 20230206 1 March 2023
Release notes — disclosure 0.34
Modifications and Bug Fixes: 1. Enhance stability of the camera. 2. Fix some minor bugs.
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 Tapo C400
Judged by lifecycle-1 on 29 September 2026.
How these verdicts are computed.