Home Assistant Core 2026.9.0 → 2026.9.4

4 versions. No breaking changes recorded between these versions.

Version by version, oldest first

2026.9.1 – 2026.9.4: no action items (4 versions)

Release notes from github.com/home-assistant/core/releases, and the official release blog, checked 18 hours ago. Only text the vendor marks as breaking, or puts in a warning/caution/important note, is shown; read the full notes for anything else. Home Assistant lists its breaking changes in the “Backward-incompatible changes” section of each monthly release post on home-assistant.io (2020.12 onward). Each entry of that section is quoted as “Breaking” on the x.y.0 release, under the integration name the post gives it. The post’s “Farewell to the following” section (integrations removed in that release, 2020.12–2024.5) is quoted whole as “Note”. The post's separate section for custom integration developers is not quoted. Patch releases are listed but their notes (lists of fixes) are not quoted. Versions come from PyPI (package homeassistant).