# Home Assistant 2026.9.1

- Product: Home Assistant (https://whatsnew.fyi/product/home-assistant)
- Vendor: Open Home Foundation
- Date: 2026-09-05
- Version: 2026.9.1
- Original notes: https://github.com/home-assistant/core/releases/tag/2026.9.1
- Permalink: https://whatsnew.fyi/product/home-assistant/releases/2026.9.1

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Fix SMTP attaching valid images as files when content sniffing fails
- **changed** — Warn that removing an app deletes its data in repair flows
- **fixed** — Fix receive backup streaming
- **fixed** — Fix potential deadlock in receive_file backup util
- **added** — Add missing state_class for miele filling level sensors
- **changed** — Update python-roborock to 7.2.3
- **changed** — Bump vizaio to 0.6.1 for vizio state_extended 404 fallback fix
- **changed** — Stop rounding Amber Electric prices to 2 decimal places
- **fixed** — Fix host override ignored in UniFi Protect public-only mode
- **fixed** — Purge unreachable deleted devices on device registry load
- **changed** — Bump pydaikin to 2.19.1
- **fixed** — Fix Besen config flow schema serialization
- **changed** — Speed up lookup of colliding orphans in device registry
- **changed** — Revert orjson to 3.11.9
- **changed** — Bump aioflo to 2026.9.3 and scope Flo consumption by device
- **changed** — Bump serialx to 1.10.0
- **changed** — Bump env-canada to 0.19.2
- **changed** — Bump python-hotspring to 2.1.0
- **changed** — Bump samsung-exlink to 1.1.1

- Fix SMTP attaching valid images as files when content sniffing fails ([@Chang-Jin-Lee] - [#176774]) ([smtp docs])
- Warn that removing an app deletes its data in repair flows ([@agners] - [#181009]) ([hassio docs])
- Fix receive backup streaming ([@MartinHjelmare] - [#181012]) ([backup docs])
- Fix potential deadlock in receive_file backup util ([@emontnemery] - [#181070]) ([backup docs])
- Add missing state_class for miele filling level sensors ([@astrandb] - [#181093]) ([miele docs])
- Update python-roborock to 7.2.3 ([@Lash-L] - [#181096]) ([roborock docs])
- Bump vizaio to 0.6.1 for vizio state_extended 404 fallback fix ([@raman325] - [#181131]) ([vizio docs]) (dependency)
- Stop rounding Amber Electric prices to 2 decimal places ([@romeovan] - [#181157]) ([amberelectric docs])
- Fix host override ignored in UniFi Protect public-only mode ([@RaHehl] - [#181176]) ([unifiprotect docs])
- Purge unreachable deleted devices on device registry load ([@emontnemery] - [#181207])
- Bump pydaikin to 2.19.1 (hotfix) ([@GhislainC] - [#181219]) ([daikin docs]) (dependency)
- Fix Besen config flow schema serialization ([@moryoav] - [#181223]) ([besen docs])
- Speed up lookup of colliding orphans in device registry ([@arturpragacz] - [#181244])
- Revert orjson to 3.11.9 ([@emontnemery] - [#181245]) (dependency)
- Bump aioflo to 2026.9.3 and scope Flo consumption by device ([@BradKollmyer] - [#181246]) ([flo docs])
- Bump serialx to 1.10.0 ([@puddly] - [#181249]) ([serial docs]) ([usb docs])
- Bump env-canada to 0.19.2 ([@michaeldavie] - [#181250]) ([environment_canada docs]) (dependency)
- Bump python-hotspring to 2.1.0 (hotfix) ([@Moustachauve] - [#181256]) ([hotspring docs]) (dependency)
- Bump samsung-exlink to 1.1.1 ([@balloob] - [#181260]) ([samsung_exlink docs]) (dependency)
- Reject Hot Spring Spa Network Adapter (SNA) in config flow (hotfix) ([@Moustachauve] - [#181261]) ([hotspring docs])
- Update knx-frontend to 2026.9.4.63549 ([@farmio] - [#181268]) ([knx docs]) (dependency)
- Allow empty motionEye usernames ([@frenck] - [#181270]) ([motioneye docs])
- Handle Tradfri devices without a firmware version ([@frenck] - [#181276]) ([tradfri docs])
- Update frontend to 20260826.6 ([@bramkragten] - [#181293]) ([frontend docs]) (dependency)
- Bump reolink_aio to 0.21.15 ([@starkillerOG] - [#181300]) ([reolink docs]) (dependency)
- Bump pylitterbot to 2025.6.5 ([@natekspencer] - [#181346]) ([litterrobot docs]) (dependency)
- Bump uiprotect to 16.6.1 ([@RaHehl] - [#180670]) ([unifiprotect docs]) (dependency)

[#176774]: https://github.com/home-assistant/core/pull/176774
[#180670]: https://github.com/home-assistant/core/pull/180670
[#181009]: https://github.com/home-assistant/core/pull/181009
[#181012]: https://github.com/home-assistant/core/pull/181012
[#181070]: https://github.com/home-assistant/core/pull/181070
[#181088]: https://github.com/home-assistant/core/pull/181088
[#181093]: https://github.com/home-assistant/core/pull/181093
[#181096]: https://github.com/home-assistant/core/pull/181096
[#181131]: https://github.com/home-assistant/core/pull/181131
[#181157]: https://github.com/home-assistant/core/pull/181157
[#181176]: https://github.com/home-assistant/core/pull/181176
[#181207]: https://github.com/home-assistant/core/pull/181207
[#181219]: https://github.com/home-assistant/core/pull/181219
[#181223]: https://github.com/home-assistant/core/pull/181223
[#181244]: https://github.com/home-assistant/core/pull/181244
[#181245]: https://github.com/home-assistant/core/pull/181245
[#181246]: https://github.com/home-assistant/core/pull/181246
[#181249]: https://github.com/home-assistant/core/pull/181249
[#181250]: https://github.com/home-assistant/core/pull/181250
[#181256]: https://github.com/home-assistant/core/pull/181256
[#181260]: https://github.com/home-assistant/core/pull/181260
[#181261]: https://github.com/home-assistant/core/pull/181261
[#181268]: https://github.com/home-assis

_[Truncated at 4000 characters — full notes: https://github.com/home-assistant/core/releases/tag/2026.9.1]_