HS220 v3.6
Actively updated reasonably evidenced
firmware is arriving about as often as it always has
33 days since the last release against a median gap of 318 (0.1x)
- Last firmware
- 28 August 2026 (33 days ago)
- Releases seen
- 4
- Update rhythm
- about every 10 months
- Support observed
- ≥3 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.
- HS220 v3 (US) Actively updated 4 releases
- HS220 v3.26 (US) Gone quiet 2 releases
- HS220 v3.46 (US) Not enough evidence 1 releases
- HS220 v3.8 (US) Actively updated 3 releases
Firmware history
-
HS220(US)_V3.6_1.1.4 Build 241220 28 August 2026
Release notes — disclosure 0.31
Modifications and Bug Fixes: Enhanced device security and stability.
Archived page, fetched 29 September 2026
-
HS220(US)_V3.6_1.0.11 Build 240122 11 May 2024
Release notes — disclosure 0.34
Modifications and Bug Fixes: 1. Updated wireless driver. 2. Optimized total stability and performance.
Archived page, fetched 29 September 2026
-
HS220(US)_V3.6_1.0.10 Build 230427 28 June 2023
Release notes — disclosure 0.45
Modifications and Bug Fixes: 1. Reduced device's response time when turning on/off switch on Kasa App. 2. Enhanced Switch stability and performance. 3. Fixed some minor bugs.
Archived page, fetched 29 September 2026
-
HS220(US)_V3.6_1.0.8 Build 220826 17 May 2023
Release notes — disclosure 0.46
Modifications and Bug Fixes: 1. Supported for using Switch to control bulb On/Off without delay when setting the "Double Tap" option to "None". 2. Enhanced Switch stability and performance. 3. Fixed 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 HS220
Judged by lifecycle-1 on 30 September 2026.
How these verdicts are computed.