Home automation edition
Home Assistant News

Reporting the local stack, from radio to automations.

The Briefing

28 September 2026

Weekend patch landed: Home Assistant Core 2026.9.4 (Sat 27 Sep). Thread Group green-lights Sub-GHz work; CSA ships Matter 1.6.1; IKEA puts TIMMERFLOTTE 1.2.2 on the Matter test network. Stack otherwise holds — HAOS 18.3, ESPHome 2026.9.0, Z2M 2.14.1, Z-Wave JS UI 11.24.1.

01 · Home Assistant

Home Assistant Core 2026.9.4 ships

What happened: Frenck tagged 2026.9.4 on Saturday (2026-09-27T09:51:05Z). Maintenance cut: Tuya fans turn off at 0% speed, Todoist timed calendar duration fix, ISEO Argo BLE discovery cleanup, HomematicIP Cloud PIN flow no longer advances on a rejected PIN, Z-Wave controller statistics key typo, HTTP security filter cost tracks request target length, plus Enphase / Xbox / OpenEVSE bumps.

Why it matters: Friday’s brief was still waiting on .4 — the patch cadence slipped a day into the weekend. Stable channel default is now 2026.9.4.

Primary source
home-assistant/core 2026.9.4; stable.json (default 2026.9.4)

02 · Matter & Thread

Thread Group approves Sub-GHz development

What happened: On 21 Sep the Thread Group Board of Directors approved work to extend Thread’s IP-based mesh to a Sub-GHz PHY. Official blog: commercial/industrial range and penetration use cases; a distinct brand name is promised in coming months. Spec, regional frequencies, and ship calendar are not published yet. Existing 2.4 GHz Thread hardware will not gain Sub-G via firmware alone.

Why it matters: Long-range Matter discussions finally have an official Thread track — still years of silicon and Matter accommodation away from shipping Matter-over-Sub-G devices, but the standards fork is no longer rumor.

Primary source
Thread Group blog, 21 Sep 2026; context Matter Alpha; Silicon Labs

03 · Matter

Matter 1.6.1 finalizes Groupcast; chime volume/mute

What happened: CSA released Matter 1.6.1, promoting Groupcast out of provisional status (recommended path for multi-device group commands) and adding optional speaker-endpoint volume/mute for doorbell chimes so sound can be silenced without killing visual alerts. No new device types — maintenance on existing categories.

Why it matters: Groupcast is the intended fix for the “popcorn” effect when HA helper groups poke Matter lights one-by-one. Home Assistant’s native Matter group work is on the OHF roadmap / Matter.js drafts — not a user-facing ship date yet.

Primary source
Matter Alpha on Matter 1.6.1 (CSA / Project CHIP)

04 · Devices / IKEA

IKEA TIMMERFLOTTE — test firmware 1.2.2 (Matter 1.5 / Thread 1.4)

IKEA TIMMERFLOTTE Matter temperature and humidity sensor, white circular product photo
IKEA TIMMERFLOTTE temperature/humidity sensor — source IKEA US product page

What happened: IKEA published TIMMERFLOTTE firmware 1.2.2 to its Matter test network on 22 Sep. Notes: moves the E2314 sensor to Matter 1.5 and Thread 1.4, claims stability improvements, adds a serial-number attribute. Production channel remains 1.0.21.

IKEA TIMMERFLOTTE sensor showing temperature on its built-in display
TIMMERFLOTTE on-device display — source IKEA US product page

Why it matters: Signal that IKEA is actively testing a newer Matter/Thread stack for this SKU — not a reason to reset working production units. HA Matter Server’s enable_test_net_dcl is the advanced path if you deliberately chase test builds.

Primary source
Matterhome, 26 Sep 2026; product IKEA TIMMERFLOTTE

05 · Home Assistant / Supervisor

Stable channel pins Supervisor 2026.09.2

What happened: stable.json currently advertises Supervisor 2026.09.2 (15 Sep). GitHub still has the newer 2026.09.3 tag (17 Sep — app capability drop flags / API gating), but the stable channel pin is what version.home-assistant.io serves this morning. Prefer the pin over the tag for “what installs.”

Primary source
stable.json (supervisor 2026.09.2); tag 2026.09.3

08 · Devices / Hue

Hue Play strip pro — UK still In stock; US still Coming soon

Philips Hue Play gradient strip light pro installed behind a television
Philips Hue Play gradient strip light pro — source Signify press kit

What happened: Live check this morning: UK pro 65" page still In stock (£139.99); US pro 65" page still Coming soon ($179.99). No market flip over the weekend.

Primary source
Hue UK pro 65" (In stock); Hue US pro 65" (Coming soon)

09 · Z-Wave

Z-Wave JS UI still 11.24.1

What happened: Latest GitHub release remains v11.24.1 (15 Sep). No 11.24.2 / 11.25.0 over the weekend.

Primary source
zwave-js-ui v11.24.1

10 · Zigbee

Zigbee2MQTT still 2.14.1

What happened: Latest GitHub release tag remains 2.14.1 (3 Sep). No 2.14.2 on the releases list as of this morning.

Primary source
Zigbee2MQTT 2.14.1

11 · Devices / Cameras

Tapo Matter cameras — two days left in end-Sep window

What happened: Still no new TP-Link calendar confirmation. HW revisions of C560WS, C260, and C660 Kit for Matter camera code remain framed as end of September — with two calendar days left as of 28 Sep, the window is nearly closed, not locked.

Primary source
Prior brief 11 Sep (heise / Tapo C560WS)

12 · Devices / Shelly

Shelly ThreadLink Gen4 still ~December

What happened: No newer ThreadLink calendar over the weekend. Gen4 ThreadLink remains the ~December watch from prior IFA framing.

Primary source
Shelly ThreadLink IFA 2026 media kit