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The method convert_interval in TemperatureConverter (allowing conversions between °F and °C intervals) has been deprecated in favor of TemperatureDeltaConverter.convert.
The new converter and device class are now the preferred way to deal with temperature intervals.
For details, see core PR 155689 and core PR 147358.
The async_listen helper in the labs integration has been deprecated in favor of async_subscribe_preview_feature.
The legacy (non-config-entry) device tracker platform API is deprecated and will be removed in the Home Assistant 2027.5 release.
The dedicated home_assistant_start flag of async_initialize_triggers is deprecated and will be removed in Home Assistant Core 2027.8.
DeviceEntry.config_entries deprecation is now enforcedThe device registry's multi-config-entry compatibility properties — DeviceEntry.config_entries, DeviceEntry.config_entries_subentries and DeviceEntry.primary_config_entry — were announced as deprecated in Devices are restricted to a single config entry and at most one subentry, but reading them was still silent.