Undefined sentinel changes
Deprecate UNDEFINED and UndefinedType in favor of Undefined
1 min read
Help buildthe open home
Code, design, documentation, translations, or community. Whatever you bring, this is where you start.
What do you want to do?
Build the software
- Build integrationsPython, core, and the integration platform.
- Work on the frontendDashboards, panels, and dialogs.
- Build appsPackage software that runs next to Home Assistant.
- Share what you buildPublish integrations, cards, themes, and blueprints for others to install.
- Work on the companion appsAndroid, iOS, and macOS.
- Work on the OS and SupervisorThe operating system, boards, and updates.
Design, write, translate
Run the project
- Grow the communityModeration, social media, and events.
- Test betas and releasesTry the beta, report what breaks, and see how a release comes together.
- See where we're headingHow ideas become planned work, and where you can help shape what comes next.
- Join an eventCommunity syncs and release days, and how to add them to your own calendar.
Understand how it works
From the blog
All postsCustom section strategies in the dashboard editor
As of Home Assistant 2026.11, custom section strategies can be registered so users can add them from the dashboard editor, with a live preview.
1 min readFrontend component updates in 2026.11
ha-md-list and ha-md-list-item were removed, and themes can now set the background of every panel.
2 min read
Coming up
All events and how to joinRelease days, meetups, and community syncs: video calls about one project, open to everyone who is interested. Select an event to see what it is about and how to join.