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Home Assistant 2026.9.1 – safe to update?

Newer release in this line: Home Assistant 2026.9.4 (2026-09-27). If you're updating now, check that one instead — it may already fix the issues reported here.

What's in this release

CVEs fixed

No CVEs mapped to this release.

Community reports

• Problem Can't connect to external Mosquitto MQTT broker after 2026.9.1 · Reddit · 2026-09-12

  Since upgrading to 2026.9.1, I can't connect to my external Mosquitto MQTT broker any longer... didn't see anything in the release notes. I've restarted everything, and still nothing. I know the broker is still working. Edit: may have fixed it; had to go into "other" settings an…

• Problem Help with homearr.. · Reddit · 2026-09-10

  Hi all, I would appreciate some help. So I have updated the homeassistant to 2026.9.1 I had the homearr installed from here and I have a version 1.1.0 https://github.com/Wiggen94/ha-homarr-v1-server before the latest updates the homearr was available on port 7575 now it does not…

• Fine New to HA, how long should recent update take to download and install? 2026.9.1 · Reddit · 2026-09-05

  I’ve recently set up a dedicated VMware machine to host HA on. I’m just wondering if I set something up wrong on the VM. But this update has been downloading and installing for over an hour now. Is that typical

• Mention Issues with Internet Access from HASS since 2026.9.x Releases. Anyone Else ? · Reddit · 2026-09-15

  Pretty much the title, looking to understand if others have seen issues. Running the same HA config without issue in a VM, then applied the 2026.9.1 and recently .2 updates and since that time continue to see host_internet: false and supervisor_internet: false. Can ping anything…

• Mention Took 3 tries, but! Safely migrated my HA over to an old Thinkpad · Reddit · 2026-09-11

  My main laptop is a MacBook Air now, and I had this Lenovo ThinkPad collecting dust in the corner. So I decided to put it to better use and turn it into a Home Assistant box. Very happy to have the large hard drive, the tons of RAM, and plenty of ports.

• Mention Smart switch randomly turning off · Reddit · 2026-09-11

  Has anyone else come across this or know what the issue might be? I'm running HAOS 2026.9.1 Core and I've noticed that my outside Garage lights are randomly turning off although they have two automations. One turns the lights on at sunset and the other turns them off at sunrise.…

• Mention IKEA MYGGSPRA unable to add to HA · Reddit · 2026-09-11

  I have bought a few IKEA MYGGSPRAYS from time to time. I found one in a drawer and want to use it. I put fresh batteries in it and held down the lever until the light started flashing red, and then when solid red at that point, I release the lever and light start flashing white…

• Mention Can presence sensors move from 'someone is home' to 'who is home'? · Reddit · 2026-09-11

  Running Home Assistant OS (Core 2026.9.1) with the LD2410D on ESPHome. So a month ago I posted about the sensor firing on the Corgi (thanks again to everyone who chimed in — u/mangoded 's tape trick and u/Mach-Arch äologie-474's BLE cross-check genuinely brought my false trigger…

• Mention GO2RTC issues · Reddit · 2026-09-09

  It's not too often I like to come cap in hand asking for help...but this time I'm a bit stuck I've been using GO2RTC for a few years now for my camera feeds, and it has worked perfectly and effortlessly to give me a handful of RTSP feeds to my wall dashboards...and it just works…

• Mention HA Supervisor not updating · Reddit · 2026-09-08

  I am trying to update my HA system and cannot get the Supervisor to update. It has been spinning for days. I have rebooted, unplugged and restarted several times, all to no avail. Nothing else will update until Supervsor has updated. :( Any insight to fixing this would be apprec…

• Mention Companion app: Clearing notifications · Reddit · 2026-09-08

  Hi! I am trying to achieve the following: 1) Send a notification to my phone when the fridge door has been open "X" minutes. 2) Clear that notification when the door is closed. My setup (all updated): Installation method Home Assistant OS Core 2026.9.1 Supervisor 2026.08.0 Opera…

• Mention Genie Aladdin Connect API leaking OTHER USERS' garage door devices into my account - real security issue, not a display bug · Reddit · 2026-09-06

  I'm running Home Assistant 2026.9.1 with the official Aladdin Connect integration. Tonight, I logged in with my own email and password and started seeing garage door devices that are not mine. Timeline: First noticed two unfamiliar devices show up alongside my own which is calle…

Reports are found automatically and labelled by an AI model plus keyword rules — they can be wrong. Open the post to judge for yourself.

← Home Assistant 2026.9.0 · Home Assistant 2026.9.2 →

Other Home Assistant versions

• 2026.10.2 2026-10-16
• 2026.10.1 2026-10-10
• 2026.10.0 2026-10-07
• 2026.9.4 2026-09-27
• 2026.9.3 2026-09-18
• 2026.9.2 2026-09-11
• 2026.9.1 2026-09-05
• 2026.9.0 2026-09-02