New alarm control panel state property and state enum (new as of Home Assistant Core 2024.11)

[Hedda]

New from the Home Assistant Developer Docs is news about "New alarm control panel state property and state enum":

• https://developers.home-assistant.io/blog/2024/10/22/new-alarm-state-property/

As of Home Assistant Core 2024.11, we have introduced the alarm_state property in the AlarmControlPanelEntity. This newly added property should be used instead of directly setting the state property.

The new alarm_state property should return its state using the new AlarmControlPanelState enum instead of as previously, setting the state using the STATE_ALARM_* constants.

There is a one-year deprecation period, and the constants will stop working from 2025.11 to ensure all custom integration authors have time to adjust.

Example:

from homeassistant.components.alarm_control_panel import AlarmControlPanelEntity, AlarmControlPanelState

class MyAlarm(AlarmControlPanelEntity):
    """My alarm."""

    @property
    def alarm_state(self) -> AlarmControlPanelState | None:
        """Return the state of the alarm."""
        if self.device.is_on():
            return AlarmControlPanelState.ARMED_AWAY
        return AlarmControlPanelState.DISARMED

More details can be found in the alarm control panel documentation.

• https://developers.home-assistant.io/docs/core/entity/alarm-control-panel#states

Checklist

• I checked for similar existing requests (both open and closed) before posting.
• My request is generic, other users may benefit from it too.

Proposal

[clear description of what you want to see changed or added]

Additional info

[some example of how the new functionality should look like]

[nielsfaber]

Thanks for the heads-up, I will adopt this in the upcoming release.

[tomlut]

There's more that will break in 2024.11

Logger: homeassistant.const
Source: helpers/deprecation.py:222
First occurred: 12:28:37 (36 occurrences)
Last logged: 12:28:37

STATE_ALARM_ARMED_VACATION was used from alarmo, this is a deprecated constant which will be removed in HA Core 2025.11. Use AlarmControlPanelState.ARMED_VACATION instead, please report it to the author of the 'alarmo' custom integration
STATE_ALARM_DISARMED was used from alarmo, this is a deprecated constant which will be removed in HA Core 2025.11. Use AlarmControlPanelState.DISARMED instead, please report it to the author of the 'alarmo' custom integration
STATE_ALARM_TRIGGERED was used from alarmo, this is a deprecated constant which will be removed in HA Core 2025.11. Use AlarmControlPanelState.TRIGGERED instead, please report it to the author of the 'alarmo' custom integration
STATE_ALARM_PENDING was used from alarmo, this is a deprecated constant which will be removed in HA Core 2025.11. Use AlarmControlPanelState.PENDING instead, please report it to the author of the 'alarmo' custom integration
STATE_ALARM_ARMING was used from alarmo, this is a deprecated constant which will be removed in HA Core 2025.11. Use AlarmControlPanelState.ARMING instead, please report it to the author of the 'alarmo' custom integration

[nielsfaber]

@tomlut

There's more that will break in 2024.11

You mean 2025.11 🙂

[tomlut]

I could have sworn I double checked that was 2024 🤦‍♂️

Would you like me to open a separate issue?