Introducing description placeholders for service action translations
It is now possible to use translation placeholders for (custom) service actions.
1 min read
2025
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Posts from 2025 , 36 posts
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Serialization of Store data in worker thread is now opt-in
The Store class from homeassistant/helpers/storage.py accepts a new constructor argument serialize_in_event_loop
1 min readAdd a status callback for MQTT subscriptions
Integrations that use MQTT might need to wait for a subscription to complete before they initiate actions.
1 min readDevice identification buttons are now classified as diagnostic
Button entities representing a device identification mechanism (using IDENTIFY device class) are now required to have their entity category set to DIAGNOSTIC.
1 min readIntroducing Labs: Preview features before they become standard
We're excited to announce a new system for shipping preview features in Home Assistant:
2 min readData Update Coordinator now supports Retry After
Integrations using the Data Update Coordinator can enhance the UpdateFailed exception with a new parameter retry_after to defer the next scheduled refresh by a specified number of seconds and then resume the normal cadence once the API has recovered.
1 min readThe capability_attributes field removed from CalculatedState
The capability_attributes field has been removed from CalculatedState. Capability attributes are still included in all attributes, which remain available in CalculatedState.
1 min readImproved error handling for oauth2 configuration without internet
Integrations using Application Credentials and Configuration via OAuth2 need to update their error handling to correctly handle configuration when the internet is down.
1 min readTemperatureConverter.convert_interval deprecation
The method convert_interval in TemperatureConverter (allowing conversions between °F and °C intervals) has been deprecated in favor of TemperatureDeltaConverter.convert.
1 min readService translations removed from WebSocket get_services and REST /api/services
Action translations defined in strings.json are no longer included in responses from the WebSocket get_services command and the REST /api/services endpoint because they were incomplete and the Home Assistant frontend did not use them.
1 min readChanges to the recorder statistics API
The Python and WS APIs for injecting and modifying statistics have changed.
2 min readDevice filter has been removed from target selector
The device filter option is no longer supported by the target selector and has been removed from the target selector documentation.
1 min readUpdate coordinator now allows retriggering
The update coordinator with debouncer active will now accept a request for an update while an update is currently in progress.
1 min readImproved API for registering platform entity services
Platform entity services should be registered by calling the helper service.async_register_platform_entity_service from the integration's async_setup instead of calling platform.async_register_entity_service during platform set up.
1 min readDeprecate hass argument in service helpers
Providing hass argument to the following service helpers is deprecated: verify_domain_control, extract_entity_ids, async_extract_entities, async_extract_entity_ids, and async_extract_config_entry_ids.
1 min readStandardize encoding of μ in units of measurement
The unit prefix μ is used by unit of measurement constants like μV and μS. There are however two different Unicode encodings of μ:
1 min readThe DeviceEntry.suggested_area attribute is deprecated and will be removed
The DeviceEntry.suggested_area attribute is deprecated and will be removed in HA Core 2026.9.
1 min readThe result attribute has been removed from the FlowResult typed dict
The result attribute has been removed from the homeassistant.data_entry_flow.FlowResult typed dict, and is now present only when needed, i.e. homeassistant.auth.models.AuthFlowResult and homeassistant.config_entries.ConfigFlowResult.
1 min readUpdated guidelines for helper integrations linking to other integration's device
Helper integrations should not add their own config entries to the source entity's device or to a user selected device.
2 min readThe media player STANDBY state is deprecated
The media player state MediaPlayerState.STANDBY has been deprecated as decided in home-assistant/architecture#799 and will be removed in Home Assistant Core 2026.8.
1 min readHandling open file limit in add-ons since OS 16
With the release of Home Assistant OS 16, the default limit for open file descriptors in Docker containers (and, by extension, all add-ons and the processes within them) has changed.
2 min readVacuum battery properties are deprecated
As of Home Assistant Core 2025.8, the two properties for battery in StateVacuumEntity, battery_level and battery_icon, have been deprecated.
1 min readSensor device classes now have default display precision
If a numeric sensor doesn't have a suggested display precision set by its integration, Home Assistant will now use a default display precision based on the sensor's device class.
1 min readIcon translations now support ranges
Icon translations now support defining icons based on numeric ranges. This means integration authors can define icons that change based on numeric values without implementing custom logic in their code.
1 min readDevice tracker TrackerEntity location accuracy attribute type change
The type of location_accuracy attribute (short hand _attr_location_accuracy) of the TrackerEntity class of the device_tracker entity component has been changed from int to float.
1 min readSearching in media players
Media players can now allow users to search through the media, by adding MediaEntityFeature.SEARCH_MEDIA and implementing async_search_media.
1 min readUnitSystem dataclass is now frozen
UnitSystem class is changed to a frozen data class, and all instances derived from it are now frozen.
1 min readChanges to ConfigSubentryFlow
ConfigSubentryFlow._reconfigure_entry_id has been renamed to ConfigSubentryFlow._entry_id and ConfigSubentryFlow._get_reconfigure_entry has been renamed to ConfigSubentryFlow._get_entry.
1 min readMedia player toggle action changed
The implementation of the toggle action service has been adjusted in the media player base class.
1 min readChanges to the BackupAgent API
The BackupAgent API has been adjusted such that the following methods should now raise BackupNotFound when a backup is not found:
1 min readNew checks for config flow unique ID
Creating a config entry with a unique ID already present in the registry is deprecated, and will now log a warning.
1 min readChanged config entry state transitions
Config entry state transitions when unloading and removing entries has been modified:
2 min readBackup agents
In the January release of 2025, we introduced a new feature for backups called backup agents.
1 min readSupport for config subentries
Config entries now have a new data type called “config subentry”. Config subentries are owned by a config entry and set up as part of async_setup_entry.
1 min readEnergy by distance units
A new ENERGY_DISTANCE device class for representing energy per distance is now available for number and sensor entities, together with automatic unit conversion based on the unit system.
1 min readRelocate dhcp/ssdp/usb/zeroconf ServiceInfo models
To reduce current reliance on optional integrations for names that are in essence used as helpers, the following ServiceInfo models have been relocated:
1 min read